github-mirror/mergerfs
2
0
Fork 0
mirror of https://github.com/trapexit/mergerfs.git synced 2024-11-22 15:37:26 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

Merge pull request #1213 from trapexit/lib-updates

Browse Source 
Lib updates
This commit is contained in:
trapexit 2023-07-15 18:51:43 -04:00 committed by GitHub
commit 539f2221a3
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
15 changed files with 2917 additions and 2244 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
DEPENDENCIES Normal file
View File

@ -0,0 +1,8 @@
## Libraries
### included in repo
* libfuse: https://github.com/libfuse/libfuse (heavily modified fork of v2.x)
* ghc::filesystem: https://github.com/gulrak/filesystem
* nonstd::optional: https://github.com/martinmoene/optional-lite
* fmt: https://github.com/fmtlib/fmt

756
src/fmt/chrono.h
View File

File diff suppressed because it is too large Load Diff

46
src/fmt/color.h
View File

@ -11,7 +11,7 @@
#include "format.h"
FMT_BEGIN_NAMESPACE
FMT_MODULE_EXPORT_BEGIN
FMT_BEGIN_EXPORT
enum class color : uint32_t {
alice_blue = 0xF0F8FF, // rgb(240,248,255)
@ -423,26 +423,6 @@ FMT_CONSTEXPR ansi_color_escape<Char> make_emphasis(emphasis em) noexcept {
return ansi_color_escape<Char>(em);
}
template <typename Char> inline void fputs(const Char* chars, FILE* stream) {
int result = std::fputs(chars, stream);
if (result < 0)
FMT_THROW(system_error(errno, FMT_STRING("cannot write to file")));
}
template <> inline void fputs<wchar_t>(const wchar_t* chars, FILE* stream) {
int result = std::fputws(chars, stream);
if (result < 0)
FMT_THROW(system_error(errno, FMT_STRING("cannot write to file")));
}
template <typename Char> inline void reset_color(FILE* stream) {
fputs("\x1b[0m", stream);
}
template <> inline void reset_color<wchar_t>(FILE* stream) {
fputs(L"\x1b[0m", stream);
}
template <typename Char> inline void reset_color(buffer<Char>& buffer) {
auto reset_color = string_view("\x1b[0m");
buffer.append(reset_color.begin(), reset_color.end());
@ -479,17 +459,19 @@ void vformat_to(buffer<Char>& buf, const text_style& ts,
FMT_END_DETAIL_NAMESPACE
template <typename S, typename Char = char_t<S>>
void vprint(std::FILE* f, const text_style& ts, const S& format,
basic_format_args<buffer_context<type_identity_t<Char>>> args) {
basic_memory_buffer<Char> buf;
detail::vformat_to(buf, ts, detail::to_string_view(format), args);
inline void vprint(std::FILE* f, const text_style& ts, string_view fmt,
format_args args) {
// Legacy wide streams are not supported.
auto buf = memory_buffer();
detail::vformat_to(buf, ts, fmt, args);
if (detail::is_utf8()) {
detail::print(f, basic_string_view<Char>(buf.begin(), buf.size()));
} else {
buf.push_back(Char(0));
detail::fputs(buf.data(), f);
detail::print(f, string_view(buf.begin(), buf.size()));
return;
}
buf.push_back('\0');
int result = std::fputs(buf.data(), f);
if (result < 0)
FMT_THROW(system_error(errno, FMT_STRING("cannot write to file")));
}
/**
@ -566,7 +548,7 @@ OutputIt vformat_to(
basic_format_args<buffer_context<type_identity_t<Char>>> args) {
auto&& buf = detail::get_buffer<Char>(out);
detail::vformat_to(buf, ts, format_str, args);
return detail::get_iterator(buf);
return detail::get_iterator(buf, out);
}
/**
@ -645,7 +627,7 @@ FMT_CONSTEXPR auto styled(const T& value, text_style ts)
return detail::styled_arg<remove_cvref_t<T>>{value, ts};
}
FMT_MODULE_EXPORT_END
FMT_END_EXPORT
FMT_END_NAMESPACE
#endif // FMT_COLOR_H_

20
src/fmt/compile.h
View File

@ -331,14 +331,14 @@ template <typename T, typename Char> struct parse_specs_result {
int next_arg_id;
};
constexpr int manual_indexing_id = -1;
enum { manual_indexing_id = -1 };
template <typename T, typename Char>
constexpr parse_specs_result<T, Char> parse_specs(basic_string_view<Char> str,
size_t pos, int next_arg_id) {
str.remove_prefix(pos);
auto ctx = compile_parse_context<Char>(str, max_value<int>(), nullptr, {},
next_arg_id);
auto ctx =
compile_parse_context<Char>(str, max_value<int>(), nullptr, next_arg_id);
auto f = formatter<T, Char>();
auto end = f.parse(ctx);
return {f, pos + fmt::detail::to_unsigned(end - str.data()),
@ -348,22 +348,18 @@ constexpr parse_specs_result<T, Char> parse_specs(basic_string_view<Char> str,
template <typename Char> struct arg_id_handler {
arg_ref<Char> arg_id;
constexpr int operator()() {
constexpr int on_auto() {
FMT_ASSERT(false, "handler cannot be used with automatic indexing");
return 0;
}
constexpr int operator()(int id) {
constexpr int on_index(int id) {
arg_id = arg_ref<Char>(id);
return 0;
}
constexpr int operator()(basic_string_view<Char> id) {
constexpr int on_name(basic_string_view<Char> id) {
arg_id = arg_ref<Char>(id);
return 0;
}
constexpr void on_error(const char* message) {
FMT_THROW(format_error(message));
}
};
template <typename Char> struct parse_arg_id_result {
@ -501,7 +497,7 @@ constexpr auto compile(S format_str) {
#endif // defined(__cpp_if_constexpr) && defined(__cpp_return_type_deduction)
} // namespace detail
FMT_MODULE_EXPORT_BEGIN
FMT_BEGIN_EXPORT
#if defined(__cpp_if_constexpr) && defined(__cpp_return_type_deduction)
@ -605,7 +601,7 @@ template <detail_exported::fixed_string Str> constexpr auto operator""_cf() {
} // namespace literals
#endif
FMT_MODULE_EXPORT_END
FMT_END_EXPORT
FMT_END_NAMESPACE
#endif // FMT_COMPILE_H_

1442
src/fmt/core.h
View File

File diff suppressed because it is too large Load Diff

220
src/fmt/format-inl.h
View File

@ -9,13 +9,9 @@
#define FMT_FORMAT_INL_H_
#include <algorithm>
#include <cctype>
#include <cerrno> // errno
#include <climits>
#include <cmath>
#include <cstdarg>
#include <cstring> // std::memmove
#include <cwchar>
#include <exception>
#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
@ -115,16 +111,43 @@ template <typename Char> FMT_FUNC Char decimal_point_impl(locale_ref) {
return '.';
}
#endif
FMT_FUNC auto write_loc(appender out, loc_value value,
const format_specs<>& specs, locale_ref loc) -> bool {
#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
auto locale = loc.get<std::locale>();
// We cannot use the num_put<char> facet because it may produce output in
// a wrong encoding.
using facet = format_facet<std::locale>;
if (std::has_facet<facet>(locale))
return std::use_facet<facet>(locale).put(out, value, specs);
return facet(locale).put(out, value, specs);
#endif
return false;
}
} // namespace detail
#if !FMT_MSC_VERSION
FMT_API FMT_FUNC format_error::~format_error() noexcept = default;
template <typename Locale> typename Locale::id format_facet<Locale>::id;
#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
template <typename Locale> format_facet<Locale>::format_facet(Locale& loc) {
auto& numpunct = std::use_facet<std::numpunct<char>>(loc);
grouping_ = numpunct.grouping();
if (!grouping_.empty()) separator_ = std::string(1, numpunct.thousands_sep());
}
template <>
FMT_API FMT_FUNC auto format_facet<std::locale>::do_put(
appender out, loc_value val, const format_specs<>& specs) const -> bool {
return val.visit(
detail::loc_writer<>{out, specs, separator_, grouping_, decimal_point_});
}
#endif
FMT_FUNC std::system_error vsystem_error(int error_code, string_view format_str,
FMT_FUNC std::system_error vsystem_error(int error_code, string_view fmt,
format_args args) {
auto ec = std::error_code(error_code, std::generic_category());
return std::system_error(ec, vformat(format_str, args));
return std::system_error(ec, vformat(fmt, args));
}
namespace detail {
@ -143,58 +166,8 @@ FMT_CONSTEXPR inline uint64_t rotr(uint64_t n, uint32_t r) noexcept {
return (n >> r) | (n << (64 - r));
}
// Computes 128-bit result of multiplication of two 64-bit unsigned integers.
inline uint128_fallback umul128(uint64_t x, uint64_t y) noexcept {
#if FMT_USE_INT128
auto p = static_cast<uint128_opt>(x) * static_cast<uint128_opt>(y);
return {static_cast<uint64_t>(p >> 64), static_cast<uint64_t>(p)};
#elif defined(_MSC_VER) && defined(_M_X64)
auto result = uint128_fallback();
result.lo_ = _umul128(x, y, &result.hi_);
return result;
#else
const uint64_t mask = static_cast<uint64_t>(max_value<uint32_t>());
uint64_t a = x >> 32;
uint64_t b = x & mask;
uint64_t c = y >> 32;
uint64_t d = y & mask;
uint64_t ac = a * c;
uint64_t bc = b * c;
uint64_t ad = a * d;
uint64_t bd = b * d;
uint64_t intermediate = (bd >> 32) + (ad & mask) + (bc & mask);
return {ac + (intermediate >> 32) + (ad >> 32) + (bc >> 32),
(intermediate << 32) + (bd & mask)};
#endif
}
// Implementation of Dragonbox algorithm: https://github.com/jk-jeon/dragonbox.
namespace dragonbox {
// Computes upper 64 bits of multiplication of two 64-bit unsigned integers.
inline uint64_t umul128_upper64(uint64_t x, uint64_t y) noexcept {
#if FMT_USE_INT128
auto p = static_cast<uint128_opt>(x) * static_cast<uint128_opt>(y);
return static_cast<uint64_t>(p >> 64);
#elif defined(_MSC_VER) && defined(_M_X64)
return __umulh(x, y);
#else
return umul128(x, y).high();
#endif
}
// Computes upper 128 bits of multiplication of a 64-bit unsigned integer and a
// 128-bit unsigned integer.
inline uint128_fallback umul192_upper128(uint64_t x,
uint128_fallback y) noexcept {
uint128_fallback r = umul128(x, y.high());
r += umul128_upper64(x, y.low());
return r;
}
// Computes upper 64 bits of multiplication of a 32-bit unsigned integer and a
// 64-bit unsigned integer.
inline uint64_t umul96_upper64(uint32_t x, uint64_t y) noexcept {
@ -216,25 +189,13 @@ inline uint64_t umul96_lower64(uint32_t x, uint64_t y) noexcept {
return x * y;
}
// Computes floor(log10(pow(2, e))) for e in [-2620, 2620] using the method from
// https://fmt.dev/papers/Dragonbox.pdf#page=28, section 6.1.
inline int floor_log10_pow2(int e) noexcept {
FMT_ASSERT(e <= 2620 && e >= -2620, "too large exponent");
static_assert((-1 >> 1) == -1, "right shift is not arithmetic");
return (e * 315653) >> 20;
}
// Various fast log computations.
inline int floor_log2_pow10(int e) noexcept {
FMT_ASSERT(e <= 1233 && e >= -1233, "too large exponent");
return (e * 1741647) >> 19;
}
inline int floor_log10_pow2_minus_log10_4_over_3(int e) noexcept {
FMT_ASSERT(e <= 2936 && e >= -2985, "too large exponent");
return (e * 631305 - 261663) >> 21;
}
static constexpr struct {
FMT_INLINE_VARIABLE constexpr struct {
uint32_t divisor;
int shift_amount;
} div_small_pow10_infos[] = {{10, 16}, {100, 16}};
@ -288,7 +249,7 @@ inline uint64_t divide_by_10_to_kappa_plus_1(uint64_t n) noexcept {
}
// Various subroutines using pow10 cache
template <class T> struct cache_accessor;
template <typename T> struct cache_accessor;
template <> struct cache_accessor<float> {
using carrier_uint = float_info<float>::carrier_uint;
@ -1009,8 +970,23 @@ template <> struct cache_accessor<double> {
{0xfcf62c1dee382c42, 0x46729e03dd9ed7b6},
{0x9e19db92b4e31ba9, 0x6c07a2c26a8346d2},
{0xc5a05277621be293, 0xc7098b7305241886},
{ 0xf70867153aa2db38,
0xb8cbee4fc66d1ea8 }
{0xf70867153aa2db38, 0xb8cbee4fc66d1ea8},
{0x9a65406d44a5c903, 0x737f74f1dc043329},
{0xc0fe908895cf3b44, 0x505f522e53053ff3},
{0xf13e34aabb430a15, 0x647726b9e7c68ff0},
{0x96c6e0eab509e64d, 0x5eca783430dc19f6},
{0xbc789925624c5fe0, 0xb67d16413d132073},
{0xeb96bf6ebadf77d8, 0xe41c5bd18c57e890},
{0x933e37a534cbaae7, 0x8e91b962f7b6f15a},
{0xb80dc58e81fe95a1, 0x723627bbb5a4adb1},
{0xe61136f2227e3b09, 0xcec3b1aaa30dd91d},
{0x8fcac257558ee4e6, 0x213a4f0aa5e8a7b2},
{0xb3bd72ed2af29e1f, 0xa988e2cd4f62d19e},
{0xe0accfa875af45a7, 0x93eb1b80a33b8606},
{0x8c6c01c9498d8b88, 0xbc72f130660533c4},
{0xaf87023b9bf0ee6a, 0xeb8fad7c7f8680b5},
{ 0xdb68c2ca82ed2a05,
0xa67398db9f6820e2 }
#else
{0xff77b1fcbebcdc4f, 0x25e8e89c13bb0f7b},
{0xce5d73ff402d98e3, 0xfb0a3d212dc81290},
@ -1034,8 +1010,8 @@ template <> struct cache_accessor<double> {
{0x8da471a9de737e24, 0x5ceaecfed289e5d3},
{0xe4d5e82392a40515, 0x0fabaf3feaa5334b},
{0xb8da1662e7b00a17, 0x3d6a751f3b936244},
{ 0x95527a5202df0ccb,
0x0f37801e0c43ebc9 }
{0x95527a5202df0ccb, 0x0f37801e0c43ebc9},
{0xf13e34aabb430a15, 0x647726b9e7c68ff0}
#endif
};
@ -1138,8 +1114,12 @@ template <> struct cache_accessor<double> {
}
};
FMT_FUNC uint128_fallback get_cached_power(int k) noexcept {
return cache_accessor<double>::get_cached_power(k);
}
// Various integer checks
template <class T>
template <typename T>
bool is_left_endpoint_integer_shorter_interval(int exponent) noexcept {
const int case_shorter_interval_left_endpoint_lower_threshold = 2;
const int case_shorter_interval_left_endpoint_upper_threshold = 3;
@ -1150,8 +1130,12 @@ bool is_left_endpoint_integer_shorter_interval(int exponent) noexcept {
// Remove trailing zeros from n and return the number of zeros removed (float)
FMT_INLINE int remove_trailing_zeros(uint32_t& n) noexcept {
FMT_ASSERT(n != 0, "");
// Modular inverse of 5 (mod 2^32): (mod_inv_5 * 5) mod 2^32 = 1.
// See https://github.com/fmtlib/fmt/issues/3163 for more details.
const uint32_t mod_inv_5 = 0xcccccccd;
const uint32_t mod_inv_25 = mod_inv_5 * mod_inv_5;
// Casts are needed to workaround a bug in MSVC 19.22 and older.
const uint32_t mod_inv_25 =
static_cast<uint32_t>(uint64_t(mod_inv_5) * mod_inv_5);
int s = 0;
while (true) {
@ -1165,7 +1149,6 @@ FMT_INLINE int remove_trailing_zeros(uint32_t& n) noexcept {
n = q;
s |= 1;
}
return s;
}
@ -1223,7 +1206,7 @@ FMT_INLINE int remove_trailing_zeros(uint64_t& n) noexcept {
}
// The main algorithm for shorter interval case
template <class T>
template <typename T>
FMT_INLINE decimal_fp<T> shorter_interval_case(int exponent) noexcept {
decimal_fp<T> ret_value;
// Compute k and beta
@ -1394,17 +1377,6 @@ small_divisor_case_label:
return ret_value;
}
} // namespace dragonbox
#ifdef _MSC_VER
FMT_FUNC auto fmt_snprintf(char* buf, size_t size, const char* fmt, ...)
-> int {
auto args = va_list();
va_start(args, fmt);
int result = vsnprintf_s(buf, size, _TRUNCATE, fmt, args);
va_end(args);
return result;
}
#endif
} // namespace detail
template <> struct formatter<detail::bigint> {
@ -1413,9 +1385,8 @@ template <> struct formatter<detail::bigint> {
return ctx.begin();
}
template <typename FormatContext>
auto format(const detail::bigint& n, FormatContext& ctx) const ->
typename FormatContext::iterator {
auto format(const detail::bigint& n, format_context& ctx) const
-> format_context::iterator {
auto out = ctx.out();
bool first = true;
for (auto i = n.bigits_.size(); i > 0; --i) {
@ -1474,57 +1445,44 @@ FMT_FUNC std::string vformat(string_view fmt, format_args args) {
}
namespace detail {
#ifdef _WIN32
#ifndef _WIN32
FMT_FUNC bool write_console(std::FILE*, string_view) { return false; }
#else
using dword = conditional_t<sizeof(long) == 4, unsigned long, unsigned>;
extern "C" __declspec(dllimport) int __stdcall WriteConsoleW( //
void*, const void*, dword, dword*, void*);
FMT_FUNC bool write_console(std::FILE* f, string_view text) {
auto fd = _fileno(f);
if (_isatty(fd)) {
detail::utf8_to_utf16 u16(string_view(text.data(), text.size()));
auto written = detail::dword();
if (detail::WriteConsoleW(reinterpret_cast<void*>(_get_osfhandle(fd)),
u16.c_str(), static_cast<uint32_t>(u16.size()),
&written, nullptr)) {
return true;
}
}
// We return false if the file descriptor was not TTY, or it was but
// SetConsoleW failed which can happen if the output has been redirected to
// NUL. In both cases when we return false, we should attempt to do regular
// write via fwrite or std::ostream::write.
return false;
}
#endif
FMT_FUNC void print(std::FILE* f, string_view text) {
#ifdef _WIN32
if (write_console(f, text)) return;
#endif
detail::fwrite_fully(text.data(), 1, text.size(), f);
}
} // namespace detail
FMT_FUNC void vprint(std::FILE* f, string_view format_str, format_args args) {
memory_buffer buffer;
detail::vformat_to(buffer, format_str, args);
detail::print(f, {buffer.data(), buffer.size()});
if (!_isatty(fd)) return false;
auto u16 = utf8_to_utf16(text);
auto written = dword();
return WriteConsoleW(reinterpret_cast<void*>(_get_osfhandle(fd)), u16.c_str(),
static_cast<uint32_t>(u16.size()), &written, nullptr);
}
#ifdef _WIN32
// Print assuming legacy (non-Unicode) encoding.
FMT_FUNC void detail::vprint_mojibake(std::FILE* f, string_view format_str,
format_args args) {
memory_buffer buffer;
detail::vformat_to(buffer, format_str,
FMT_FUNC void vprint_mojibake(std::FILE* f, string_view fmt, format_args args) {
auto buffer = memory_buffer();
detail::vformat_to(buffer, fmt,
basic_format_args<buffer_context<char>>(args));
fwrite_fully(buffer.data(), 1, buffer.size(), f);
}
#endif
FMT_FUNC void vprint(string_view format_str, format_args args) {
vprint(stdout, format_str, args);
FMT_FUNC void print(std::FILE* f, string_view text) {
if (!write_console(f, text)) fwrite_fully(text.data(), 1, text.size(), f);
}
} // namespace detail
FMT_FUNC void vprint(std::FILE* f, string_view fmt, format_args args) {
auto buffer = memory_buffer();
detail::vformat_to(buffer, fmt, args);
detail::print(f, {buffer.data(), buffer.size()});
}
FMT_FUNC void vprint(string_view fmt, format_args args) {
vprint(stdout, fmt, args);
}
namespace detail {

1378
src/fmt/format.h
View File

File diff suppressed because it is too large Load Diff

107
src/fmt/os.h
View File

@ -71,7 +71,7 @@
#define FMT_RETRY(result, expression) FMT_RETRY_VAL(result, expression, -1)
FMT_BEGIN_NAMESPACE
FMT_MODULE_EXPORT_BEGIN
FMT_BEGIN_EXPORT
/**
\rst
@ -120,48 +120,10 @@ template <typename Char> class basic_cstring_view {
using cstring_view = basic_cstring_view<char>;
using wcstring_view = basic_cstring_view<wchar_t>;
template <typename Char> struct formatter<std::error_code, Char> {
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
return ctx.begin();
}
template <typename FormatContext>
FMT_CONSTEXPR auto format(const std::error_code& ec, FormatContext& ctx) const
-> decltype(ctx.out()) {
auto out = ctx.out();
out = detail::write_bytes(out, ec.category().name(),
basic_format_specs<Char>());
out = detail::write<Char>(out, Char(':'));
out = detail::write<Char>(out, ec.value());
return out;
}
};
#ifdef _WIN32
FMT_API const std::error_category& system_category() noexcept;
FMT_BEGIN_DETAIL_NAMESPACE
// A converter from UTF-16 to UTF-8.
// It is only provided for Windows since other systems support UTF-8 natively.
class utf16_to_utf8 {
private:
memory_buffer buffer_;
public:
utf16_to_utf8() {}
FMT_API explicit utf16_to_utf8(basic_string_view<wchar_t> s);
operator string_view() const { return string_view(&buffer_[0], size()); }
size_t size() const { return buffer_.size() - 1; }
const char* c_str() const { return &buffer_[0]; }
std::string str() const { return std::string(&buffer_[0], size()); }
// Performs conversion returning a system error code instead of
// throwing exception on conversion error. This method may still throw
// in case of memory allocation error.
FMT_API int convert(basic_string_view<wchar_t> s);
};
FMT_API void format_windows_error(buffer<char>& out, int error_code,
const char* message) noexcept;
FMT_END_DETAIL_NAMESPACE
@ -355,6 +317,12 @@ class FMT_API file {
// Creates a buffered_file object associated with this file and detaches
// this file object from the file.
buffered_file fdopen(const char* mode);
# if defined(_WIN32) && !defined(__MINGW32__)
// Opens a file and constructs a file object representing this file by
// wcstring_view filename. Windows only.
static file open_windows_file(wcstring_view path, int oflag);
# endif
};
// Returns the memory page size.
@ -397,6 +365,28 @@ struct ostream_params {
# endif
};
class file_buffer final : public buffer<char> {
file file_;
FMT_API void grow(size_t) override;
public:
FMT_API file_buffer(cstring_view path, const ostream_params& params);
FMT_API file_buffer(file_buffer&& other);
FMT_API ~file_buffer();
void flush() {
if (size() == 0) return;
file_.write(data(), size() * sizeof(data()[0]));
clear();
}
void close() {
flush();
file_.close();
}
};
FMT_END_DETAIL_NAMESPACE
// Added {} below to work around default constructor error known to
@ -404,49 +394,32 @@ FMT_END_DETAIL_NAMESPACE
constexpr detail::buffer_size buffer_size{};
/** A fast output stream which is not thread-safe. */
class FMT_API ostream final : private detail::buffer<char> {
class FMT_API ostream {
private:
file file_;
void grow(size_t) override;
FMT_MSC_WARNING(suppress : 4251)
detail::file_buffer buffer_;
ostream(cstring_view path, const detail::ostream_params& params)
: file_(path, params.oflag) {
set(new char[params.buffer_size], params.buffer_size);
}
: buffer_(path, params) {}
public:
ostream(ostream&& other)
: detail::buffer<char>(other.data(), other.size(), other.capacity()),
file_(std::move(other.file_)) {
other.clear();
other.set(nullptr, 0);
}
~ostream() {
flush();
delete[] data();
}
ostream(ostream&& other) : buffer_(std::move(other.buffer_)) {}
void flush() {
if (size() == 0) return;
file_.write(data(), size());
clear();
}
~ostream();
void flush() { buffer_.flush(); }
template <typename... T>
friend ostream output_file(cstring_view path, T... params);
void close() {
flush();
file_.close();
}
void close() { buffer_.close(); }
/**
Formats ``args`` according to specifications in ``fmt`` and writes the
output to the file.
*/
template <typename... T> void print(format_string<T...> fmt, T&&... args) {
vformat_to(detail::buffer_appender<char>(*this), fmt,
vformat_to(detail::buffer_appender<char>(buffer_), fmt,
fmt::make_format_args(args...));
}
};
@ -472,7 +445,7 @@ inline ostream output_file(cstring_view path, T... params) {
}
#endif // FMT_USE_FCNTL
FMT_MODULE_EXPORT_END
FMT_END_EXPORT
FMT_END_NAMESPACE
#endif // FMT_OS_H_

66
src/fmt/ostream.h
View File

@ -8,8 +8,8 @@
#ifndef FMT_OSTREAM_H_
#define FMT_OSTREAM_H_
#include <fstream>
#include <ostream>
#include <fstream> // std::filebuf
#if defined(_WIN32) && defined(__GLIBCXX__)
# include <ext/stdio_filebuf.h>
# include <ext/stdio_sync_filebuf.h>
@ -21,48 +21,14 @@
FMT_BEGIN_NAMESPACE
template <typename OutputIt, typename Char> class basic_printf_context;
namespace detail {
// Checks if T has a user-defined operator<<.
template <typename T, typename Char, typename Enable = void>
class is_streamable {
private:
template <typename U>
static auto test(int)
-> bool_constant<sizeof(std::declval<std::basic_ostream<Char>&>()
<< std::declval<U>()) != 0>;
template <typename> static auto test(...) -> std::false_type;
using result = decltype(test<T>(0));
public:
is_streamable() = default;
static const bool value = result::value;
};
// Formatting of built-in types and arrays is intentionally disabled because
// it's handled by standard (non-ostream) formatters.
template <typename T, typename Char>
struct is_streamable<
T, Char,
enable_if_t<
std::is_arithmetic<T>::value || std::is_array<T>::value ||
std::is_pointer<T>::value || std::is_same<T, char8_type>::value ||
std::is_convertible<T, fmt::basic_string_view<Char>>::value ||
std::is_same<T, std_string_view<Char>>::value ||
(std::is_convertible<T, int>::value && !std::is_enum<T>::value)>>
: std::false_type {};
// Generate a unique explicit instantion in every translation unit using a tag
// type in an anonymous namespace.
namespace {
struct file_access_tag {};
} // namespace
template <class Tag, class BufType, FILE* BufType::*FileMemberPtr>
template <typename Tag, typename BufType, FILE* BufType::*FileMemberPtr>
class file_access {
friend auto get_file(BufType& obj) -> FILE* { return obj.*FileMemberPtr; }
};
@ -84,8 +50,8 @@ inline bool write_ostream_unicode(std::ostream& os, fmt::string_view data) {
#elif defined(_WIN32) && defined(__GLIBCXX__)
auto* rdbuf = os.rdbuf();
FILE* c_file;
if (auto* fbuf = dynamic_cast<__gnu_cxx::stdio_sync_filebuf<char>*>(rdbuf))
c_file = fbuf->file();
if (auto* sfbuf = dynamic_cast<__gnu_cxx::stdio_sync_filebuf<char>*>(rdbuf))
c_file = sfbuf->file();
else if (auto* fbuf = dynamic_cast<__gnu_cxx::stdio_filebuf<char>*>(rdbuf))
c_file = fbuf->file();
else
@ -145,7 +111,7 @@ struct basic_ostream_formatter : formatter<basic_string_view<Char>, Char> {
auto format(const T& value, basic_format_context<OutputIt, Char>& ctx) const
-> OutputIt {
auto buffer = basic_memory_buffer<Char>();
format_value(buffer, value, ctx.locale());
detail::format_value(buffer, value, ctx.locale());
return formatter<basic_string_view<Char>, Char>::format(
{buffer.data(), buffer.size()}, ctx);
}
@ -180,13 +146,6 @@ auto streamed(const T& value) -> detail::streamed_view<T> {
namespace detail {
// Formats an object of type T that has an overloaded ostream operator<<.
template <typename T, typename Char>
struct fallback_formatter<T, Char, enable_if_t<is_streamable<T, Char>::value>>
: basic_ostream_formatter<Char> {
using basic_ostream_formatter<Char>::format;
};
inline void vprint_directly(std::ostream& os, string_view format_str,
format_args args) {
auto buffer = memory_buffer();
@ -232,6 +191,19 @@ void print(std::wostream& os,
vprint(os, fmt, fmt::make_format_args<buffer_context<wchar_t>>(args...));
}
FMT_MODULE_EXPORT template <typename... T>
void println(std::ostream& os, format_string<T...> fmt, T&&... args) {
fmt::print(os, "{}\n", fmt::format(fmt, std::forward<T>(args)...));
}
FMT_MODULE_EXPORT
template <typename... Args>
void println(std::wostream& os,
basic_format_string<wchar_t, type_identity_t<Args>...> fmt,
Args&&... args) {
print(os, L"{}\n", fmt::format(fmt, std::forward<Args>(args)...));
}
FMT_END_NAMESPACE
#endif // FMT_OSTREAM_H_

147
src/fmt/printf.h
View File

@ -14,7 +14,7 @@
#include "format.h"
FMT_BEGIN_NAMESPACE
FMT_MODULE_EXPORT_BEGIN
FMT_BEGIN_EXPORT
template <typename T> struct printf_formatter { printf_formatter() = delete; };
@ -81,13 +81,13 @@ class printf_precision_handler {
template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
int operator()(T value) {
if (!int_checker<std::numeric_limits<T>::is_signed>::fits_in_int(value))
FMT_THROW(format_error("number is too big"));
throw_format_error("number is too big");
return (std::max)(static_cast<int>(value), 0);
}
template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)>
int operator()(T) {
FMT_THROW(format_error("precision is not integer"));
throw_format_error("precision is not integer");
return 0;
}
};
@ -194,12 +194,10 @@ template <typename Char> struct get_cstring {
// left alignment if it is negative.
template <typename Char> class printf_width_handler {
private:
using format_specs = basic_format_specs<Char>;
format_specs& specs_;
format_specs<Char>& specs_;
public:
explicit printf_width_handler(format_specs& specs) : specs_(specs) {}
explicit printf_width_handler(format_specs<Char>& specs) : specs_(specs) {}
template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
unsigned operator()(T value) {
@ -209,24 +207,31 @@ template <typename Char> class printf_width_handler {
width = 0 - width;
}
unsigned int_max = max_value<int>();
if (width > int_max) FMT_THROW(format_error("number is too big"));
if (width > int_max) throw_format_error("number is too big");
return static_cast<unsigned>(width);
}
template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)>
unsigned operator()(T) {
FMT_THROW(format_error("width is not integer"));
throw_format_error("width is not integer");
return 0;
}
};
// Workaround for a bug with the XL compiler when initializing
// printf_arg_formatter's base class.
template <typename Char>
auto make_arg_formatter(buffer_appender<Char> iter, format_specs<Char>& s)
-> arg_formatter<Char> {
return {iter, s, locale_ref()};
}
// The ``printf`` argument formatter.
template <typename OutputIt, typename Char>
class printf_arg_formatter : public arg_formatter<Char> {
private:
using base = arg_formatter<Char>;
using context_type = basic_printf_context<OutputIt, Char>;
using format_specs = basic_format_specs<Char>;
context_type& context_;
@ -237,8 +242,8 @@ class printf_arg_formatter : public arg_formatter<Char> {
}
public:
printf_arg_formatter(OutputIt iter, format_specs& s, context_type& ctx)
: base{iter, s, locale_ref()}, context_(ctx) {}
printf_arg_formatter(OutputIt iter, format_specs<Char>& s, context_type& ctx)
: base(make_arg_formatter(iter, s)), context_(ctx) {}
OutputIt operator()(monostate value) { return base::operator()(value); }
@ -247,7 +252,7 @@ class printf_arg_formatter : public arg_formatter<Char> {
// MSVC2013 fails to compile separate overloads for bool and Char so use
// std::is_same instead.
if (std::is_same<T, Char>::value) {
format_specs fmt_specs = this->specs;
format_specs<Char> fmt_specs = this->specs;
if (fmt_specs.type != presentation_type::none &&
fmt_specs.type != presentation_type::chr) {
return (*this)(static_cast<int>(value));
@ -300,8 +305,7 @@ class printf_arg_formatter : public arg_formatter<Char> {
};
template <typename Char>
void parse_flags(basic_format_specs<Char>& specs, const Char*& it,
const Char* end) {
void parse_flags(format_specs<Char>& specs, const Char*& it, const Char* end) {
for (; it != end; ++it) {
switch (*it) {
case '-':
@ -328,8 +332,8 @@ void parse_flags(basic_format_specs<Char>& specs, const Char*& it,
}
template <typename Char, typename GetArg>
int parse_header(const Char*& it, const Char* end,
basic_format_specs<Char>& specs, GetArg get_arg) {
int parse_header(const Char*& it, const Char* end, format_specs<Char>& specs,
GetArg get_arg) {
int arg_index = -1;
Char c = *it;
if (c >= '0' && c <= '9') {
@ -344,7 +348,7 @@ int parse_header(const Char*& it, const Char* end,
if (value != 0) {
// Nonzero value means that we parsed width and don't need to
// parse it or flags again, so return now.
if (value == -1) FMT_THROW(format_error("number is too big"));
if (value == -1) throw_format_error("number is too big");
specs.width = value;
return arg_index;
}
@ -355,7 +359,7 @@ int parse_header(const Char*& it, const Char* end,
if (it != end) {
if (*it >= '0' && *it <= '9') {
specs.width = parse_nonnegative_int(it, end, -1);
if (specs.width == -1) FMT_THROW(format_error("number is too big"));
if (specs.width == -1) throw_format_error("number is too big");
} else if (*it == '*') {
++it;
specs.width = static_cast<int>(visit_format_arg(
@ -365,12 +369,52 @@ int parse_header(const Char*& it, const Char* end,
return arg_index;
}
inline auto parse_printf_presentation_type(char c, type t)
-> presentation_type {
using pt = presentation_type;
constexpr auto integral_set = sint_set | uint_set | bool_set | char_set;
switch (c) {
case 'd':
return in(t, integral_set) ? pt::dec : pt::none;
case 'o':
return in(t, integral_set) ? pt::oct : pt::none;
case 'x':
return in(t, integral_set) ? pt::hex_lower : pt::none;
case 'X':
return in(t, integral_set) ? pt::hex_upper : pt::none;
case 'a':
return in(t, float_set) ? pt::hexfloat_lower : pt::none;
case 'A':
return in(t, float_set) ? pt::hexfloat_upper : pt::none;
case 'e':
return in(t, float_set) ? pt::exp_lower : pt::none;
case 'E':
return in(t, float_set) ? pt::exp_upper : pt::none;
case 'f':
return in(t, float_set) ? pt::fixed_lower : pt::none;
case 'F':
return in(t, float_set) ? pt::fixed_upper : pt::none;
case 'g':
return in(t, float_set) ? pt::general_lower : pt::none;
case 'G':
return in(t, float_set) ? pt::general_upper : pt::none;
case 'c':
return in(t, integral_set) ? pt::chr : pt::none;
case 's':
return in(t, string_set | cstring_set) ? pt::string : pt::none;
case 'p':
return in(t, pointer_set | cstring_set) ? pt::pointer : pt::none;
default:
return pt::none;
}
}
template <typename Char, typename Context>
void vprintf(buffer<Char>& buf, basic_string_view<Char> format,
basic_format_args<Context> args) {
using OutputIt = buffer_appender<Char>;
auto out = OutputIt(buf);
auto context = basic_printf_context<OutputIt, Char>(out, args);
using iterator = buffer_appender<Char>;
auto out = iterator(buf);
auto context = basic_printf_context<iterator, Char>(out, args);
auto parse_ctx = basic_printf_parse_context<Char>(format);
// Returns the argument with specified index or, if arg_index is -1, the next
@ -387,26 +431,25 @@ void vprintf(buffer<Char>& buf, basic_string_view<Char> format,
const Char* end = parse_ctx.end();
auto it = start;
while (it != end) {
if (!detail::find<false, Char>(it, end, '%', it)) {
it = end; // detail::find leaves it == nullptr if it doesn't find '%'
if (!find<false, Char>(it, end, '%', it)) {
it = end; // find leaves it == nullptr if it doesn't find '%'.
break;
}
Char c = *it++;
if (it != end && *it == c) {
out = detail::write(
out, basic_string_view<Char>(start, detail::to_unsigned(it - start)));
out = write(out, basic_string_view<Char>(start, to_unsigned(it - start)));
start = ++it;
continue;
}
out = detail::write(out, basic_string_view<Char>(
start, detail::to_unsigned(it - 1 - start)));
out =
write(out, basic_string_view<Char>(start, to_unsigned(it - 1 - start)));
basic_format_specs<Char> specs;
auto specs = format_specs<Char>();
specs.align = align::right;
// Parse argument index, flags and width.
int arg_index = parse_header(it, end, specs, get_arg);
if (arg_index == 0) parse_ctx.on_error("argument not found");
if (arg_index == 0) throw_format_error("argument not found");
// Parse precision.
if (it != end && *it == '.') {
@ -417,7 +460,7 @@ void vprintf(buffer<Char>& buf, basic_string_view<Char> format,
} else if (c == '*') {
++it;
specs.precision = static_cast<int>(
visit_format_arg(detail::printf_precision_handler(), get_arg(-1)));
visit_format_arg(printf_precision_handler(), get_arg(-1)));
} else {
specs.precision = 0;
}
@ -429,17 +472,15 @@ void vprintf(buffer<Char>& buf, basic_string_view<Char> format,
if (specs.precision >= 0 && arg.is_integral())
specs.fill[0] =
' '; // Ignore '0' flag for non-numeric types or if '-' present.
if (specs.precision >= 0 && arg.type() == detail::type::cstring_type) {
auto str = visit_format_arg(detail::get_cstring<Char>(), arg);
if (specs.precision >= 0 && arg.type() == type::cstring_type) {
auto str = visit_format_arg(get_cstring<Char>(), arg);
auto str_end = str + specs.precision;
auto nul = std::find(str, str_end, Char());
arg = detail::make_arg<basic_printf_context<OutputIt, Char>>(
arg = make_arg<basic_printf_context<iterator, Char>>(
basic_string_view<Char>(
str, detail::to_unsigned(nul != str_end ? nul - str
: specs.precision)));
str, to_unsigned(nul != str_end ? nul - str : specs.precision)));
}
if (specs.alt && visit_format_arg(detail::is_zero_int(), arg))
specs.alt = false;
if (specs.alt && visit_format_arg(is_zero_int(), arg)) specs.alt = false;
if (specs.fill[0] == '0') {
if (arg.is_arithmetic() && specs.align != align::left)
specs.align = align::numeric;
@ -451,7 +492,6 @@ void vprintf(buffer<Char>& buf, basic_string_view<Char> format,
// Parse length and convert the argument to the required type.
c = it != end ? *it++ : 0;
Char t = it != end ? *it : 0;
using detail::convert_arg;
switch (c) {
case 'h':
if (t == 'h') {
@ -490,7 +530,7 @@ void vprintf(buffer<Char>& buf, basic_string_view<Char> format,
}
// Parse type.
if (it == end) FMT_THROW(format_error("invalid format string"));
if (it == end) throw_format_error("invalid format string");
char type = static_cast<char>(*it++);
if (arg.is_integral()) {
// Normalize type.
@ -501,22 +541,21 @@ void vprintf(buffer<Char>& buf, basic_string_view<Char> format,
break;
case 'c':
visit_format_arg(
detail::char_converter<basic_printf_context<OutputIt, Char>>(arg),
arg);
char_converter<basic_printf_context<iterator, Char>>(arg), arg);
break;
}
}
specs.type = parse_presentation_type(type);
specs.type = parse_printf_presentation_type(type, arg.type());
if (specs.type == presentation_type::none)
parse_ctx.on_error("invalid type specifier");
throw_format_error("invalid format specifier");
start = it;
// Format argument.
out = visit_format_arg(
detail::printf_arg_formatter<OutputIt, Char>(out, specs, context), arg);
printf_arg_formatter<iterator, Char>(out, specs, context), arg);
}
detail::write(out, basic_string_view<Char>(start, to_unsigned(it - start)));
write(out, basic_string_view<Char>(start, to_unsigned(it - start)));
}
FMT_END_DETAIL_NAMESPACE
@ -559,9 +598,9 @@ inline auto vsprintf(
const S& fmt,
basic_format_args<basic_printf_context_t<type_identity_t<Char>>> args)
-> std::basic_string<Char> {
basic_memory_buffer<Char> buffer;
vprintf(buffer, detail::to_string_view(fmt), args);
return to_string(buffer);
auto buf = basic_memory_buffer<Char>();
detail::vprintf(buf, detail::to_string_view(fmt), args);
return to_string(buf);
}
/**
@ -586,10 +625,10 @@ inline auto vfprintf(
std::FILE* f, const S& fmt,
basic_format_args<basic_printf_context_t<type_identity_t<Char>>> args)
-> int {
basic_memory_buffer<Char> buffer;
vprintf(buffer, detail::to_string_view(fmt), args);
size_t size = buffer.size();
return std::fwrite(buffer.data(), sizeof(Char), size, f) < size
auto buf = basic_memory_buffer<Char>();
detail::vprintf(buf, detail::to_string_view(fmt), args);
size_t size = buf.size();
return std::fwrite(buf.data(), sizeof(Char), size, f) < size
? -1
: static_cast<int>(size);
}
@ -634,7 +673,7 @@ inline auto printf(const S& fmt, const T&... args) -> int {
fmt::make_format_args<basic_printf_context_t<char_t<S>>>(args...));
}
FMT_MODULE_EXPORT_END
FMT_END_EXPORT
FMT_END_NAMESPACE
#endif // FMT_PRINTF_H_

296
src/fmt/ranges.h
View File

@ -22,27 +22,25 @@ FMT_BEGIN_NAMESPACE
namespace detail {
template <typename RangeT, typename OutputIterator>
OutputIterator copy(const RangeT& range, OutputIterator out) {
template <typename Range, typename OutputIt>
auto copy(const Range& range, OutputIt out) -> OutputIt {
for (auto it = range.begin(), end = range.end(); it != end; ++it)
*out++ = *it;
return out;
}
template <typename OutputIterator>
OutputIterator copy(const char* str, OutputIterator out) {
template <typename OutputIt>
auto copy(const char* str, OutputIt out) -> OutputIt {
while (*str) *out++ = *str++;
return out;
}
template <typename OutputIterator>
OutputIterator copy(char ch, OutputIterator out) {
template <typename OutputIt> auto copy(char ch, OutputIt out) -> OutputIt {
*out++ = ch;
return out;
}
template <typename OutputIterator>
OutputIterator copy(wchar_t ch, OutputIterator out) {
template <typename OutputIt> auto copy(wchar_t ch, OutputIt out) -> OutputIt {
*out++ = ch;
return out;
}
@ -69,7 +67,7 @@ template <typename T> class is_map {
template <typename> static void check(...);
public:
#ifdef FMT_FORMAT_MAP_AS_LIST
#ifdef FMT_FORMAT_MAP_AS_LIST // DEPRECATED!
static constexpr const bool value = false;
#else
static constexpr const bool value =
@ -82,7 +80,7 @@ template <typename T> class is_set {
template <typename> static void check(...);
public:
#ifdef FMT_FORMAT_SET_AS_LIST
#ifdef FMT_FORMAT_SET_AS_LIST // DEPRECATED!
static constexpr const bool value = false;
#else
static constexpr const bool value =
@ -157,8 +155,9 @@ template <typename T>
struct has_mutable_begin_end<
T, void_t<decltype(detail::range_begin(std::declval<T>())),
decltype(detail::range_end(std::declval<T>())),
enable_if_t<std::is_copy_constructible<T>::value>>>
: std::true_type {};
// the extra int here is because older versions of MSVC don't
// SFINAE properly unless there are distinct types
int>> : std::true_type {};
template <typename T>
struct is_range_<T, void>
@ -211,41 +210,61 @@ class is_tuple_formattable_ {
static constexpr const bool value = false;
};
template <typename T, typename C> class is_tuple_formattable_<T, C, true> {
template <std::size_t... I>
static std::true_type check2(index_sequence<I...>,
integer_sequence<bool, (I == I)...>);
template <std::size_t... Is>
static std::true_type check2(index_sequence<Is...>,
integer_sequence<bool, (Is == Is)...>);
static std::false_type check2(...);
template <std::size_t... I>
template <std::size_t... Is>
static decltype(check2(
index_sequence<I...>{},
index_sequence<Is...>{},
integer_sequence<
bool, (is_formattable<typename std::tuple_element<I, T>::type,
C>::value)...>{})) check(index_sequence<I...>);
bool, (is_formattable<typename std::tuple_element<Is, T>::type,
C>::value)...>{})) check(index_sequence<Is...>);
public:
static constexpr const bool value =
decltype(check(tuple_index_sequence<T>{}))::value;
};
template <class Tuple, class F, size_t... Is>
void for_each(index_sequence<Is...>, Tuple&& tup, F&& f) noexcept {
template <typename Tuple, typename F, size_t... Is>
FMT_CONSTEXPR void for_each(index_sequence<Is...>, Tuple&& t, F&& f) {
using std::get;
// using free function get<I>(T) now.
const int _[] = {0, ((void)f(get<Is>(tup)), 0)...};
(void)_; // blocks warnings
// Using a free function get<Is>(Tuple) now.
const int unused[] = {0, ((void)f(get<Is>(t)), 0)...};
ignore_unused(unused);
}
template <class T>
FMT_CONSTEXPR make_index_sequence<std::tuple_size<T>::value> get_indexes(
T const&) {
return {};
template <typename Tuple, typename F>
FMT_CONSTEXPR void for_each(Tuple&& t, F&& f) {
for_each(tuple_index_sequence<remove_cvref_t<Tuple>>(),
std::forward<Tuple>(t), std::forward<F>(f));
}
template <class Tuple, class F> void for_each(Tuple&& tup, F&& f) {
const auto indexes = get_indexes(tup);
for_each(indexes, std::forward<Tuple>(tup), std::forward<F>(f));
template <typename Tuple1, typename Tuple2, typename F, size_t... Is>
void for_each2(index_sequence<Is...>, Tuple1&& t1, Tuple2&& t2, F&& f) {
using std::get;
const int unused[] = {0, ((void)f(get<Is>(t1), get<Is>(t2)), 0)...};
ignore_unused(unused);
}
template <typename Tuple1, typename Tuple2, typename F>
void for_each2(Tuple1&& t1, Tuple2&& t2, F&& f) {
for_each2(tuple_index_sequence<remove_cvref_t<Tuple1>>(),
std::forward<Tuple1>(t1), std::forward<Tuple2>(t2),
std::forward<F>(f));
}
namespace tuple {
// Workaround a bug in MSVC 2019 (v140).
template <typename Char, typename... T>
using result_t = std::tuple<formatter<remove_cvref_t<T>, Char>...>;
using std::get;
template <typename Tuple, typename Char, std::size_t... Is>
auto get_formatters(index_sequence<Is...>)
-> result_t<Char, decltype(get<Is>(std::declval<Tuple>()))...>;
} // namespace tuple
#if FMT_MSC_VERSION && FMT_MSC_VERSION < 1920
// Older MSVC doesn't get the reference type correctly for arrays.
template <typename R> struct range_reference_type_impl {
@ -269,45 +288,37 @@ using range_reference_type =
template <typename Range>
using uncvref_type = remove_cvref_t<range_reference_type<Range>>;
template <typename Range>
using uncvref_first_type =
remove_cvref_t<decltype(std::declval<range_reference_type<Range>>().first)>;
template <typename Range>
using uncvref_second_type = remove_cvref_t<
decltype(std::declval<range_reference_type<Range>>().second)>;
template <typename OutputIt> OutputIt write_delimiter(OutputIt out) {
*out++ = ',';
*out++ = ' ';
return out;
template <typename Formatter>
FMT_CONSTEXPR auto maybe_set_debug_format(Formatter& f, bool set)
-> decltype(f.set_debug_format(set)) {
f.set_debug_format(set);
}
template <typename Formatter>
FMT_CONSTEXPR void maybe_set_debug_format(Formatter&, ...) {}
template <typename Char, typename OutputIt>
auto write_range_entry(OutputIt out, basic_string_view<Char> str) -> OutputIt {
return write_escaped_string(out, str);
}
// These are not generic lambdas for compatibility with C++11.
template <typename ParseContext> struct parse_empty_specs {
template <typename Formatter> FMT_CONSTEXPR void operator()(Formatter& f) {
f.parse(ctx);
detail::maybe_set_debug_format(f, true);
}
ParseContext& ctx;
};
template <typename FormatContext> struct format_tuple_element {
using char_type = typename FormatContext::char_type;
template <typename Char, typename OutputIt, typename T,
FMT_ENABLE_IF(std::is_convertible<T, std_string_view<char>>::value)>
inline auto write_range_entry(OutputIt out, const T& str) -> OutputIt {
auto sv = std_string_view<Char>(str);
return write_range_entry<Char>(out, basic_string_view<Char>(sv));
}
template <typename T>
void operator()(const formatter<T, char_type>& f, const T& v) {
if (i > 0)
ctx.advance_to(detail::copy_str<char_type>(separator, ctx.out()));
ctx.advance_to(f.format(v, ctx));
++i;
}
template <typename Char, typename OutputIt, typename Arg,
FMT_ENABLE_IF(std::is_same<Arg, Char>::value)>
OutputIt write_range_entry(OutputIt out, const Arg v) {
return write_escaped_char(out, v);
}
template <
typename Char, typename OutputIt, typename Arg,
FMT_ENABLE_IF(!is_std_string_like<typename std::decay<Arg>::type>::value &&
!std::is_same<Arg, Char>::value)>
OutputIt write_range_entry(OutputIt out, const Arg& v) {
return write<Char>(out, v);
}
int i;
FormatContext& ctx;
basic_string_view<char_type> separator;
};
} // namespace detail
@ -321,29 +332,20 @@ template <typename T, typename C> struct is_tuple_formattable {
detail::is_tuple_formattable_<T, C>::value;
};
template <typename TupleT, typename Char>
struct formatter<TupleT, Char,
enable_if_t<fmt::is_tuple_like<TupleT>::value &&
fmt::is_tuple_formattable<TupleT, Char>::value>> {
template <typename Tuple, typename Char>
struct formatter<Tuple, Char,
enable_if_t<fmt::is_tuple_like<Tuple>::value &&
fmt::is_tuple_formattable<Tuple, Char>::value>> {
private:
decltype(detail::tuple::get_formatters<Tuple, Char>(
detail::tuple_index_sequence<Tuple>())) formatters_;
basic_string_view<Char> separator_ = detail::string_literal<Char, ',', ' '>{};
basic_string_view<Char> opening_bracket_ =
detail::string_literal<Char, '('>{};
basic_string_view<Char> closing_bracket_ =
detail::string_literal<Char, ')'>{};
// C++11 generic lambda for format().
template <typename FormatContext> struct format_each {
template <typename T> void operator()(const T& v) {
if (i > 0) out = detail::copy_str<Char>(separator, out);
out = detail::write_range_entry<Char>(out, v);
++i;
}
int i;
typename FormatContext::iterator& out;
basic_string_view<Char> separator;
};
public:
FMT_CONSTEXPR formatter() {}
@ -359,17 +361,21 @@ struct formatter<TupleT, Char,
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
return ctx.begin();
auto it = ctx.begin();
if (it != ctx.end() && *it != '}')
FMT_THROW(format_error("invalid format specifier"));
detail::for_each(formatters_, detail::parse_empty_specs<ParseContext>{ctx});
return it;
}
template <typename FormatContext = format_context>
auto format(const TupleT& values, FormatContext& ctx) const
template <typename FormatContext>
auto format(const Tuple& value, FormatContext& ctx) const
-> decltype(ctx.out()) {
auto out = ctx.out();
out = detail::copy_str<Char>(opening_bracket_, out);
detail::for_each(values, format_each<FormatContext>{0, out, separator_});
out = detail::copy_str<Char>(closing_bracket_, out);
return out;
ctx.advance_to(detail::copy_str<Char>(opening_bracket_, ctx.out()));
detail::for_each2(
formatters_, value,
detail::format_tuple_element<FormatContext>{0, ctx, separator_});
return detail::copy_str<Char>(closing_bracket_, ctx.out());
}
};
@ -398,12 +404,10 @@ template <typename Context> struct range_mapper {
};
template <typename Char, typename Element>
using range_formatter_type = conditional_t<
is_formattable<Element, Char>::value,
using range_formatter_type =
formatter<remove_cvref_t<decltype(range_mapper<buffer_context<Char>>{}.map(
std::declval<Element>()))>,
Char>,
fallback_formatter<Element, Char>>;
Char>;
template <typename R>
using maybe_const_range =
@ -413,11 +417,8 @@ using maybe_const_range =
#if !FMT_MSC_VERSION || FMT_MSC_VERSION >= 1910
template <typename R, typename Char>
struct is_formattable_delayed
: disjunction<
is_formattable<uncvref_type<maybe_const_range<R>>, Char>,
has_fallback_formatter<uncvref_type<maybe_const_range<R>>, Char>> {};
: is_formattable<uncvref_type<maybe_const_range<R>>, Char> {};
#endif
} // namespace detail
template <typename T, typename Char, typename Enable = void>
@ -426,32 +427,16 @@ struct range_formatter;
template <typename T, typename Char>
struct range_formatter<
T, Char,
enable_if_t<conjunction<
std::is_same<T, remove_cvref_t<T>>,
disjunction<is_formattable<T, Char>,
detail::has_fallback_formatter<T, Char>>>::value>> {
enable_if_t<conjunction<std::is_same<T, remove_cvref_t<T>>,
is_formattable<T, Char>>::value>> {
private:
detail::range_formatter_type<Char, T> underlying_;
bool custom_specs_ = false;
basic_string_view<Char> separator_ = detail::string_literal<Char, ',', ' '>{};
basic_string_view<Char> opening_bracket_ =
detail::string_literal<Char, '['>{};
basic_string_view<Char> closing_bracket_ =
detail::string_literal<Char, ']'>{};
template <class U>
FMT_CONSTEXPR static auto maybe_set_debug_format(U& u, int)
-> decltype(u.set_debug_format()) {
u.set_debug_format();
}
template <class U>
FMT_CONSTEXPR static void maybe_set_debug_format(U&, ...) {}
FMT_CONSTEXPR void maybe_set_debug_format() {
maybe_set_debug_format(underlying_, 0);
}
public:
FMT_CONSTEXPR range_formatter() {}
@ -473,31 +458,24 @@ struct range_formatter<
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
auto it = ctx.begin();
auto end = ctx.end();
if (it == end || *it == '}') {
maybe_set_debug_format();
return it;
}
if (*it == 'n') {
if (it != end && *it == 'n') {
set_brackets({}, {});
++it;
}
if (*it == '}') {
maybe_set_debug_format();
return it;
if (it != end && *it != '}') {
if (*it != ':') FMT_THROW(format_error("invalid format specifier"));
++it;
} else {
detail::maybe_set_debug_format(underlying_, true);
}
if (*it != ':')
FMT_THROW(format_error("no other top-level range formatters supported"));
custom_specs_ = true;
++it;
ctx.advance_to(it);
return underlying_.parse(ctx);
}
template <typename R, class FormatContext>
template <typename R, typename FormatContext>
auto format(R&& range, FormatContext& ctx) const -> decltype(ctx.out()) {
detail::range_mapper<buffer_context<Char>> mapper;
auto out = ctx.out();
@ -507,7 +485,6 @@ struct range_formatter<
auto end = detail::range_end(range);
for (; it != end; ++it) {
if (i > 0) out = detail::copy_str<Char>(separator_, out);
;
ctx.advance_to(out);
out = underlying_.format(mapper.map(*it), ctx);
++i;
@ -520,13 +497,14 @@ struct range_formatter<
enum class range_format { disabled, map, set, sequence, string, debug_string };
namespace detail {
template <typename T> struct range_format_kind_ {
static constexpr auto value = std::is_same<range_reference_type<T>, T>::value
? range_format::disabled
: is_map<T>::value ? range_format::map
: is_set<T>::value ? range_format::set
: range_format::sequence;
};
template <typename T>
struct range_format_kind_
: std::integral_constant<range_format,
std::is_same<uncvref_type<T>, T>::value
? range_format::disabled
: is_map<T>::value ? range_format::map
: is_set<T>::value ? range_format::set
: range_format::sequence> {};
template <range_format K, typename R, typename Char, typename Enable = void>
struct range_default_formatter;
@ -601,9 +579,6 @@ template <typename Char, typename... T> struct tuple_join_view : detail::view {
: tuple(t), sep{s} {}
};
template <typename Char, typename... T>
using tuple_arg_join = tuple_join_view<Char, T...>;
// Define FMT_TUPLE_JOIN_SPECIFIERS to enable experimental format specifiers
// support in tuple_join. It is disabled by default because of issues with
// the dynamic width and precision.
@ -673,7 +648,42 @@ struct formatter<tuple_join_view<Char, T...>, Char> {
}
};
FMT_MODULE_EXPORT_BEGIN
namespace detail {
// Check if T has an interface like a container adaptor (e.g. std::stack,
// std::queue, std::priority_queue).
template <typename T> class is_container_adaptor_like {
template <typename U> static auto check(U* p) -> typename U::container_type;
template <typename> static void check(...);
public:
static constexpr const bool value =
!std::is_void<decltype(check<T>(nullptr))>::value;
};
template <typename Container> struct all {
const Container& c;
auto begin() const -> typename Container::const_iterator { return c.begin(); }
auto end() const -> typename Container::const_iterator { return c.end(); }
};
} // namespace detail
template <typename T, typename Char>
struct formatter<T, Char,
enable_if_t<detail::is_container_adaptor_like<T>::value>>
: formatter<detail::all<typename T::container_type>, Char> {
using all = detail::all<typename T::container_type>;
template <typename FormatContext>
auto format(const T& t, FormatContext& ctx) const -> decltype(ctx.out()) {
struct getter : T {
static auto get(const T& t) -> all {
return {t.*(&getter::c)}; // Access c through the derived class.
}
};
return formatter<all>::format(getter::get(t), ctx);
}
};
FMT_BEGIN_EXPORT
/**
\rst
@ -716,7 +726,7 @@ auto join(std::initializer_list<T> list, string_view sep)
return join(std::begin(list), std::end(list), sep);
}
FMT_MODULE_EXPORT_END
FMT_END_EXPORT
FMT_END_NAMESPACE
#endif // FMT_RANGES_H_

222
src/fmt/std.h
View File

@ -8,8 +8,12 @@
#ifndef FMT_STD_H_
#define FMT_STD_H_
#include <cstdlib>
#include <exception>
#include <memory>
#include <thread>
#include <type_traits>
#include <typeinfo>
#include <utility>
#include "ostream.h"
@ -25,6 +29,19 @@
# if FMT_HAS_INCLUDE(<variant>)
# include <variant>
# endif
# if FMT_HAS_INCLUDE(<optional>)
# include <optional>
# endif
#endif
// GCC 4 does not support FMT_HAS_INCLUDE.
#if FMT_HAS_INCLUDE(<cxxabi.h>) || defined(__GLIBCXX__)
# include <cxxabi.h>
// Android NDK with gabi++ library on some architectures does not implement
// abi::__cxa_demangle().
# ifndef __GABIXX_CXXABI_H__
# define FMT_HAS_ABI_CXA_DEMANGLE
# endif
#endif
#ifdef __cpp_lib_filesystem
@ -39,12 +56,13 @@ void write_escaped_path(basic_memory_buffer<Char>& quoted,
}
# ifdef _WIN32
template <>
inline void write_escaped_path<char>(basic_memory_buffer<char>& quoted,
inline void write_escaped_path<char>(memory_buffer& quoted,
const std::filesystem::path& p) {
auto s = p.u8string();
write_escaped_string<char>(
std::back_inserter(quoted),
string_view(reinterpret_cast<const char*>(s.c_str()), s.size()));
auto buf = basic_memory_buffer<wchar_t>();
write_escaped_string<wchar_t>(std::back_inserter(buf), p.native());
// Convert UTF-16 to UTF-8.
if (!unicode_to_utf8<wchar_t>::convert(quoted, {buf.data(), buf.size()}))
FMT_THROW(std::runtime_error("invalid utf16"));
}
# endif
template <>
@ -57,13 +75,19 @@ inline void write_escaped_path<std::filesystem::path::value_type>(
} // namespace detail
FMT_MODULE_EXPORT
template <typename Char>
struct formatter<std::filesystem::path, Char>
: formatter<basic_string_view<Char>> {
template <typename ParseContext> FMT_CONSTEXPR auto parse(ParseContext& ctx) {
auto out = formatter<basic_string_view<Char>>::parse(ctx);
this->set_debug_format(false);
return out;
}
template <typename FormatContext>
auto format(const std::filesystem::path& p, FormatContext& ctx) const ->
typename FormatContext::iterator {
basic_memory_buffer<Char> quoted;
auto quoted = basic_memory_buffer<Char>();
detail::write_escaped_path(quoted, p);
return formatter<basic_string_view<Char>>::format(
basic_string_view<Char>(quoted.data(), quoted.size()), ctx);
@ -73,12 +97,58 @@ FMT_END_NAMESPACE
#endif
FMT_BEGIN_NAMESPACE
FMT_MODULE_EXPORT
template <typename Char>
struct formatter<std::thread::id, Char> : basic_ostream_formatter<Char> {};
FMT_END_NAMESPACE
#ifdef __cpp_lib_optional
FMT_BEGIN_NAMESPACE
FMT_MODULE_EXPORT
template <typename T, typename Char>
struct formatter<std::optional<T>, Char,
std::enable_if_t<is_formattable<T, Char>::value>> {
private:
formatter<T, Char> underlying_;
static constexpr basic_string_view<Char> optional =
detail::string_literal<Char, 'o', 'p', 't', 'i', 'o', 'n', 'a', 'l',
'('>{};
static constexpr basic_string_view<Char> none =
detail::string_literal<Char, 'n', 'o', 'n', 'e'>{};
template <class U>
FMT_CONSTEXPR static auto maybe_set_debug_format(U& u, bool set)
-> decltype(u.set_debug_format(set)) {
u.set_debug_format(set);
}
template <class U>
FMT_CONSTEXPR static void maybe_set_debug_format(U&, ...) {}
public:
template <typename ParseContext> FMT_CONSTEXPR auto parse(ParseContext& ctx) {
maybe_set_debug_format(underlying_, true);
return underlying_.parse(ctx);
}
template <typename FormatContext>
auto format(std::optional<T> const& opt, FormatContext& ctx) const
-> decltype(ctx.out()) {
if (!opt) return detail::write<Char>(ctx.out(), none);
auto out = ctx.out();
out = detail::write<Char>(out, optional);
ctx.advance_to(out);
out = underlying_.format(*opt, ctx);
return detail::write(out, ')');
}
};
FMT_END_NAMESPACE
#endif // __cpp_lib_optional
#ifdef __cpp_lib_variant
FMT_BEGIN_NAMESPACE
FMT_MODULE_EXPORT
template <typename Char> struct formatter<std::monostate, Char> {
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
@ -100,19 +170,16 @@ template <typename T>
using variant_index_sequence =
std::make_index_sequence<std::variant_size<T>::value>;
// variant_size and variant_alternative check.
template <typename T, typename U = void>
struct is_variant_like_ : std::false_type {};
template <typename T>
struct is_variant_like_<T, std::void_t<decltype(std::variant_size<T>::value)>>
: std::true_type {};
template <typename> struct is_variant_like_ : std::false_type {};
template <typename... Types>
struct is_variant_like_<std::variant<Types...>> : std::true_type {};
// formattable element check
// formattable element check.
template <typename T, typename C> class is_variant_formattable_ {
template <std::size_t... I>
template <std::size_t... Is>
static std::conjunction<
is_formattable<std::variant_alternative_t<I, T>, C>...>
check(std::index_sequence<I...>);
is_formattable<std::variant_alternative_t<Is, T>, C>...>
check(std::index_sequence<Is...>);
public:
static constexpr const bool value =
@ -130,7 +197,6 @@ auto write_variant_alternative(OutputIt out, const T& v) -> OutputIt {
}
} // namespace detail
template <typename T> struct is_variant_like {
static constexpr const bool value = detail::is_variant_like_<T>::value;
};
@ -140,6 +206,7 @@ template <typename T, typename C> struct is_variant_formattable {
detail::is_variant_formattable_<T, C>::value;
};
FMT_MODULE_EXPORT
template <typename Variant, typename Char>
struct formatter<
Variant, Char,
@ -156,16 +223,127 @@ struct formatter<
auto out = ctx.out();
out = detail::write<Char>(out, "variant(");
std::visit(
[&](const auto& v) {
out = detail::write_variant_alternative<Char>(out, v);
},
value);
try {
std::visit(
[&](const auto& v) {
out = detail::write_variant_alternative<Char>(out, v);
},
value);
} catch (const std::bad_variant_access&) {
detail::write<Char>(out, "valueless by exception");
}
*out++ = ')';
return out;
}
};
FMT_END_NAMESPACE
#endif // __cpp_lib_variant
FMT_BEGIN_NAMESPACE
FMT_MODULE_EXPORT
template <typename Char> struct formatter<std::error_code, Char> {
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
return ctx.begin();
}
template <typename FormatContext>
FMT_CONSTEXPR auto format(const std::error_code& ec, FormatContext& ctx) const
-> decltype(ctx.out()) {
auto out = ctx.out();
out = detail::write_bytes(out, ec.category().name(), format_specs<Char>());
out = detail::write<Char>(out, Char(':'));
out = detail::write<Char>(out, ec.value());
return out;
}
};
FMT_MODULE_EXPORT
template <typename T, typename Char>
struct formatter<
T, Char,
typename std::enable_if<std::is_base_of<std::exception, T>::value>::type> {
private:
bool with_typename_ = false;
public:
FMT_CONSTEXPR auto parse(basic_format_parse_context<Char>& ctx)
-> decltype(ctx.begin()) {
auto it = ctx.begin();
auto end = ctx.end();
if (it == end || *it == '}') return it;
if (*it == 't') {
++it;
with_typename_ = true;
}
return it;
}
template <typename OutputIt>
auto format(const std::exception& ex,
basic_format_context<OutputIt, Char>& ctx) const -> OutputIt {
format_specs<Char> spec;
auto out = ctx.out();
if (!with_typename_)
return detail::write_bytes(out, string_view(ex.what()), spec);
const std::type_info& ti = typeid(ex);
#ifdef FMT_HAS_ABI_CXA_DEMANGLE
int status = 0;
std::size_t size = 0;
std::unique_ptr<char, decltype(&std::free)> demangled_name_ptr(
abi::__cxa_demangle(ti.name(), nullptr, &size, &status), &std::free);
string_view demangled_name_view;
if (demangled_name_ptr) {
demangled_name_view = demangled_name_ptr.get();
// Normalization of stdlib inline namespace names.
// libc++ inline namespaces.
// std::__1::* -> std::*
// std::__1::__fs::* -> std::*
// libstdc++ inline namespaces.
// std::__cxx11::* -> std::*
// std::filesystem::__cxx11::* -> std::filesystem::*
if (demangled_name_view.starts_with("std::")) {
char* begin = demangled_name_ptr.get();
char* to = begin + 5; // std::
for (char *from = to, *end = begin + demangled_name_view.size();
from < end;) {
// This is safe, because demangled_name is NUL-terminated.
if (from[0] == '_' && from[1] == '_') {
char* next = from + 1;
while (next < end && *next != ':') next++;
if (next[0] == ':' && next[1] == ':') {
from = next + 2;
continue;
}
}
*to++ = *from++;
}
demangled_name_view = {begin, detail::to_unsigned(to - begin)};
}
} else {
demangled_name_view = string_view(ti.name());
}
out = detail::write_bytes(out, demangled_name_view, spec);
#elif FMT_MSC_VERSION
string_view demangled_name_view(ti.name());
if (demangled_name_view.starts_with("class "))
demangled_name_view.remove_prefix(6);
else if (demangled_name_view.starts_with("struct "))
demangled_name_view.remove_prefix(7);
out = detail::write_bytes(out, demangled_name_view, spec);
#else
out = detail::write_bytes(out, string_view(ti.name()), spec);
#endif
out = detail::write<Char>(out, Char(':'));
out = detail::write<Char>(out, Char(' '));
out = detail::write_bytes(out, string_view(ex.what()), spec);
return out;
}
};
FMT_END_NAMESPACE
#endif // FMT_STD_H_

44
src/fmt/xchar.h
View File

@ -12,13 +12,32 @@
#include "format.h"
#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
# include <locale>
#endif
FMT_BEGIN_NAMESPACE
namespace detail {
template <typename T>
using is_exotic_char = bool_constant<!std::is_same<T, char>::value>;
}
FMT_MODULE_EXPORT_BEGIN
inline auto write_loc(std::back_insert_iterator<detail::buffer<wchar_t>> out,
loc_value value, const format_specs<wchar_t>& specs,
locale_ref loc) -> bool {
#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
auto& numpunct =
std::use_facet<std::numpunct<wchar_t>>(loc.get<std::locale>());
auto separator = std::wstring();
auto grouping = numpunct.grouping();
if (!grouping.empty()) separator = std::wstring(1, numpunct.thousands_sep());
return value.visit(loc_writer<wchar_t>{out, specs, separator, grouping, {}});
#endif
return false;
}
} // namespace detail
FMT_BEGIN_EXPORT
using wstring_view = basic_string_view<wchar_t>;
using wformat_parse_context = basic_format_parse_context<wchar_t>;
@ -33,7 +52,9 @@ inline auto runtime(wstring_view s) -> wstring_view { return s; }
#else
template <typename... Args>
using wformat_string = basic_format_string<wchar_t, type_identity_t<Args>...>;
inline auto runtime(wstring_view s) -> basic_runtime<wchar_t> { return {{s}}; }
inline auto runtime(wstring_view s) -> runtime_format_string<wchar_t> {
return {{s}};
}
#endif
template <> struct is_char<wchar_t> : std::true_type {};
@ -126,7 +147,7 @@ auto vformat_to(OutputIt out, const S& format_str,
-> OutputIt {
auto&& buf = detail::get_buffer<Char>(out);
detail::vformat_to(buf, detail::to_string_view(format_str), args);
return detail::get_iterator(buf);
return detail::get_iterator(buf, out);
}
template <typename OutputIt, typename S, typename... Args,
@ -149,7 +170,7 @@ inline auto vformat_to(
auto&& buf = detail::get_buffer<Char>(out);
vformat_to(buf, detail::to_string_view(format_str), args,
detail::locale_ref(loc));
return detail::get_iterator(buf);
return detail::get_iterator(buf, out);
}
template <
@ -160,7 +181,7 @@ template <
inline auto format_to(OutputIt out, const Locale& loc, const S& format_str,
Args&&... args) ->
typename std::enable_if<enable, OutputIt>::type {
return vformat_to(out, loc, to_string_view(format_str),
return vformat_to(out, loc, detail::to_string_view(format_str),
fmt::make_format_args<buffer_context<Char>>(args...));
}
@ -217,13 +238,22 @@ template <typename... T> void print(wformat_string<T...> fmt, T&&... args) {
return vprint(wstring_view(fmt), fmt::make_wformat_args(args...));
}
template <typename... T>
void println(std::FILE* f, wformat_string<T...> fmt, T&&... args) {
return print(f, L"{}\n", fmt::format(fmt, std::forward<T>(args)...));
}
template <typename... T> void println(wformat_string<T...> fmt, T&&... args) {
return print(L"{}\n", fmt::format(fmt, std::forward<T>(args)...));
}
/**
Converts *value* to ``std::wstring`` using the default format for type *T*.
*/
template <typename T> inline auto to_wstring(const T& value) -> std::wstring {
return format(FMT_STRING(L"{}"), value);
}
FMT_MODULE_EXPORT_END
FMT_END_EXPORT
FMT_END_NAMESPACE
#endif // FMT_XCHAR_H_

43
src/format.cpp Normal file
View File

@ -0,0 +1,43 @@
// Formatting library for C++
//
// Copyright (c) 2012 - 2016, Victor Zverovich
// All rights reserved.
//
// For the license information refer to format.h.
#include "fmt/format-inl.h"
FMT_BEGIN_NAMESPACE
namespace detail {
template FMT_API auto dragonbox::to_decimal(float x) noexcept
-> dragonbox::decimal_fp<float>;
template FMT_API auto dragonbox::to_decimal(double x) noexcept
-> dragonbox::decimal_fp<double>;
#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
template FMT_API locale_ref::locale_ref(const std::locale& loc);
template FMT_API auto locale_ref::get<std::locale>() const -> std::locale;
#endif
// Explicit instantiations for char.
template FMT_API auto thousands_sep_impl(locale_ref)
-> thousands_sep_result<char>;
template FMT_API auto decimal_point_impl(locale_ref) -> char;
template FMT_API void buffer<char>::append(const char*, const char*);
template FMT_API void vformat_to(buffer<char>&, string_view,
typename vformat_args<>::type, locale_ref);
// Explicit instantiations for wchar_t.
template FMT_API auto thousands_sep_impl(locale_ref)
-> thousands_sep_result<wchar_t>;
template FMT_API auto decimal_point_impl(locale_ref) -> wchar_t;
template FMT_API void buffer<wchar_t>::append(const wchar_t*, const wchar_t*);
} // namespace detail
FMT_END_NAMESPACE

366
src/ghc/filesystem.hpp
View File

@ -67,6 +67,8 @@
#define GHC_OS_WIN32
#elif defined(__CYGWIN__)
#define GHC_OS_CYGWIN
#elif defined(__sun) && defined(__SVR4)
#define GHC_OS_SOLARIS
#elif defined(__svr4__)
#define GHC_OS_SYS5R4
#elif defined(BSD)
@ -76,7 +78,8 @@
#include <wasi/api.h>
#elif defined(__QNX__)
#define GHC_OS_QNX
#define GHC_NO_DIRENT_D_TYPE
#elif defined(__HAIKU__)
#define GHC_OS_HAIKU
#else
#error "Operating system currently not supported!"
#endif
@ -214,6 +217,7 @@
#include <compare>
#endif
#endif
#include <chrono>
#include <fstream>
#include <memory>
#include <stack>
@ -253,6 +257,10 @@
#include <experimental/string_view>
#endif
#if !defined(GHC_OS_WINDOWS) && !defined(PATH_MAX)
#define PATH_MAX 4096
#endif
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// Behaviour Switches (see README.md, should match the config in test/filesystem_test.cpp):
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
@ -264,7 +272,7 @@
// configure LWG conformance ()
#define LWG_2682_BEHAVIOUR
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// LWG #2395 makes create_directory/create_directories not emit an error if there is a regular
// LWG #2395 makes crate_directory/create_directories not emit an error if there is a regular
// file with that name, it is superseded by P1164R1, so only activate if really needed
// #define LWG_2935_BEHAVIOUR
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
@ -273,19 +281,19 @@
// * if this->has_root_directory() and !p.has_root_directory() return -1
// * if !this->has_root_directory() and p.has_root_directory() return -1
// * else result of element wise comparison of path iteration where first comparison is != 0 or 0
// if all comparisons are 0 (on Windows this implementation does case insensitive root_name()
// if all comparisons are 0 (on Windows this implementation does case-insensitive root_name()
// comparison)
#define LWG_2936_BEHAVIOUR
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// LWG #2937 enforces that fs::equivalent emits an error, if !fs::exists(p1)||!exists(p2)
#define LWG_2937_BEHAVIOUR
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// UTF8-Everywhere is the original behaviour of ghc::filesystem. But since v1.5 the windows
// UTF8-Everywhere is the original behaviour of ghc::filesystem. But since v1.5 the Windows
// version defaults to std::wstring storage backend. Still all std::string will be interpreted
// as UTF-8 encoded. With this define you can enfoce the old behavior on Windows, using
// as UTF-8 encoded. With this define you can enforce the old behavior on Windows, using
// std::string as backend and for fs::path::native() and char for fs::path::c_str(). This
// needs more conversions so it is (an was before v1.5) slower, bot might help keeping source
// homogeneous in a multi platform project.
// needs more conversions, so it is (and was before v1.5) slower, bot might help keeping source
// homogeneous in a multi-platform project.
// #define GHC_WIN_DISABLE_WSTRING_STORAGE_TYPE
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// Raise errors/exceptions when invalid unicode codepoints or UTF-8 sequences are found,
@ -300,7 +308,7 @@
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// ghc::filesystem version in decimal (major * 10000 + minor * 100 + patch)
#define GHC_FILESYSTEM_VERSION 10509L
#define GHC_FILESYSTEM_VERSION 10514L
#if !defined(GHC_WITH_EXCEPTIONS) && (defined(__EXCEPTIONS) || defined(__cpp_exceptions) || defined(_CPPUNWIND))
#define GHC_WITH_EXCEPTIONS
@ -423,10 +431,11 @@ public:
template <typename T>
using path_type_EcharT = typename std::enable_if<std::is_same<T, char>::value || std::is_same<T, char8_t>::value || std::is_same<T, char16_t>::value || std::is_same<T, char32_t>::value || std::is_same<T, wchar_t>::value, path>::type;
#else
using path_from_string = typename std::enable_if<_is_basic_string<T>::value || std::is_same<char const*, typename std::decay<T>::type>::value || std::is_same<char*, typename std::decay<T>::type>::value ||
using path_from_string =
typename std::enable_if<_is_basic_string<T>::value || std::is_same<char const*, typename std::decay<T>::type>::value || std::is_same<char*, typename std::decay<T>::type>::value ||
std::is_same<char16_t const*, typename std::decay<T>::type>::value || std::is_same<char16_t*, typename std::decay<T>::type>::value || std::is_same<char32_t const*, typename std::decay<T>::type>::value ||
std::is_same<char32_t*, typename std::decay<T>::type>::value || std::is_same<wchar_t const*, typename std::decay<T>::type>::value || std::is_same<wchar_t*, typename std::decay<T>::type>::value,
path>::type;
path>::type;
template <typename T>
using path_type_EcharT = typename std::enable_if<std::is_same<T, char>::value || std::is_same<T, char16_t>::value || std::is_same<T, char32_t>::value || std::is_same<T, wchar_t>::value, path>::type;
#endif
@ -604,7 +613,7 @@ private:
friend bool detail::has_executable_extension(const path& p);
#ifdef GHC_WIN_AUTO_PREFIX_LONG_PATH
string_type::size_type _prefixLength{0};
#else // GHC_WIN_AUTO_PREFIX_LONG_PATH
#else // GHC_WIN_AUTO_PREFIX_LONG_PATH
static const string_type::size_type _prefixLength{0};
#endif // GHC_WIN_AUTO_PREFIX_LONG_PATH
#else
@ -799,6 +808,7 @@ public:
file_type type() const noexcept;
perms permissions() const noexcept;
friend bool operator==(const file_status& lhs, const file_status& rhs) noexcept { return lhs.type() == rhs.type() && lhs.permissions() == rhs.permissions(); }
private:
file_type _type;
perms _perms;
@ -1295,6 +1305,65 @@ GHC_FS_API std::error_code make_error_code(portable_error err);
GHC_FS_API std::error_code make_system_error(uint32_t err = 0);
#else
GHC_FS_API std::error_code make_system_error(int err = 0);
template <typename T, typename = int>
struct has_d_type : std::false_type{};
template <typename T>
struct has_d_type<T, decltype((void)T::d_type, 0)> : std::true_type {};
template <typename T>
GHC_INLINE file_type file_type_from_dirent_impl(const T&, std::false_type)
{
return file_type::none;
}
template <typename T>
GHC_INLINE file_type file_type_from_dirent_impl(const T& t, std::true_type)
{
switch (t.d_type) {
#ifdef DT_BLK
case DT_BLK:
return file_type::block;
#endif
#ifdef DT_CHR
case DT_CHR:
return file_type::character;
#endif
#ifdef DT_DIR
case DT_DIR:
return file_type::directory;
#endif
#ifdef DT_FIFO
case DT_FIFO:
return file_type::fifo;
#endif
#ifdef DT_LNK
case DT_LNK:
return file_type::symlink;
#endif
#ifdef DT_REG
case DT_REG:
return file_type::regular;
#endif
#ifdef DT_SOCK
case DT_SOCK:
return file_type::socket;
#endif
#ifdef DT_UNKNOWN
case DT_UNKNOWN:
return file_type::none;
#endif
default:
return file_type::unknown;
}
}
template <class T>
GHC_INLINE file_type file_type_from_dirent(const T& t)
{
return file_type_from_dirent_impl(t, has_d_type<T>{});
}
#endif
} // namespace detail
@ -1696,7 +1765,7 @@ inline std::wstring toWChar(const charT* unicodeString)
return toWChar(std::basic_string<charT, std::char_traits<charT>>(unicodeString));
#endif
}
#endif // GHC_USE_WCHAR_T
#endif // GHC_USE_WCHAR_T
} // namespace detail
@ -1815,16 +1884,16 @@ GHC_INLINE bool equals_simple_insensitive(const path::value_type* str1, const pa
return true;
}
return false;
#else // __GNUC__
#else // __GNUC__
#ifdef GHC_USE_WCHAR_T
return 0 == ::_wcsicmp(str1, str2);
#else // GHC_USE_WCHAR_T
#else // GHC_USE_WCHAR_T
return 0 == ::_stricmp(str1, str2);
#endif // GHC_USE_WCHAR_T
#endif // __GNUC__
#else // GHC_OS_WINDOWS
#endif // GHC_USE_WCHAR_T
#endif // __GNUC__
#else // GHC_OS_WINDOWS
return 0 == ::strcasecmp(str1, str2);
#endif // GHC_OS_WINDOWS
#endif // GHC_OS_WINDOWS
}
GHC_INLINE int compare_simple_insensitive(const path::value_type* str1, size_t len1, const path::value_type* str2, size_t len2)
@ -1888,10 +1957,15 @@ GHC_INLINE void create_symlink(const path& target_name, const path& new_symlink,
#if defined(__GNUC__) && __GNUC__ >= 8
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-function-type"
#elif defined(_MSC_VER) && !defined(__INTEL_COMPILER) && !defined(__clang__)
#pragma warning(push)
#pragma warning(disable : 4191)
#endif
static CreateSymbolicLinkW_fp api_call = reinterpret_cast<CreateSymbolicLinkW_fp>(GetProcAddress(GetModuleHandleW(L"kernel32.dll"), "CreateSymbolicLinkW"));
#if defined(__GNUC__) && __GNUC__ >= 8
#pragma GCC diagnostic pop
#elif defined(_MSC_VER) && !defined(__INTEL_COMPILER) && !defined(__clang__)
#pragma warning(pop)
#endif
if (api_call) {
if (api_call(GHC_NATIVEWP(new_symlink), GHC_NATIVEWP(target_name), to_directory ? 1 : 0) == 0) {
@ -1912,10 +1986,15 @@ GHC_INLINE void create_hardlink(const path& target_name, const path& new_hardlin
#if defined(__GNUC__) && __GNUC__ >= 8
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-function-type"
#elif defined(_MSC_VER) && !defined(__INTEL_COMPILER) && !defined(__clang__)
#pragma warning(push)
#pragma warning(disable : 4191)
#endif
static CreateHardLinkW_fp api_call = reinterpret_cast<CreateHardLinkW_fp>(GetProcAddress(GetModuleHandleW(L"kernel32.dll"), "CreateHardLinkW"));
#if defined(__GNUC__) && __GNUC__ >= 8
#pragma GCC diagnostic pop
#elif defined(_MSC_VER) && !defined(__INTEL_COMPILER) && !defined(__clang__)
#pragma warning(pop)
#endif
if (api_call) {
if (api_call(GHC_NATIVEWP(new_hardlink), GHC_NATIVEWP(target_name), NULL) == 0) {
@ -2004,6 +2083,52 @@ GHC_INLINE file_status file_status_from_st_mode(T mode)
}
#ifdef GHC_OS_WINDOWS
class unique_handle
{
public:
typedef HANDLE element_type;
unique_handle() noexcept
: _handle(INVALID_HANDLE_VALUE)
{
}
explicit unique_handle(element_type h) noexcept
: _handle(h)
{
}
unique_handle(unique_handle&& u) noexcept
: _handle(u.release())
{
}
~unique_handle() { reset(); }
unique_handle& operator=(unique_handle&& u) noexcept
{
reset(u.release());
return *this;
}
element_type get() const noexcept { return _handle; }
explicit operator bool() const noexcept { return _handle != INVALID_HANDLE_VALUE; }
element_type release() noexcept
{
element_type tmp = _handle;
_handle = INVALID_HANDLE_VALUE;
return tmp;
}
void reset(element_type h = INVALID_HANDLE_VALUE) noexcept
{
element_type tmp = _handle;
_handle = h;
if (tmp != INVALID_HANDLE_VALUE) {
CloseHandle(tmp);
}
}
void swap(unique_handle& u) noexcept { std::swap(_handle, u._handle); }
private:
element_type _handle;
};
#ifndef REPARSE_DATA_BUFFER_HEADER_SIZE
typedef struct _REPARSE_DATA_BUFFER
{
@ -2040,15 +2165,21 @@ typedef struct _REPARSE_DATA_BUFFER
#endif
#endif
GHC_INLINE std::shared_ptr<REPARSE_DATA_BUFFER> getReparseData(const path& p, std::error_code& ec)
template <class T>
struct free_deleter
{
std::shared_ptr<void> file(CreateFileW(GHC_NATIVEWP(p), 0, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, 0, OPEN_EXISTING, FILE_FLAG_OPEN_REPARSE_POINT | FILE_FLAG_BACKUP_SEMANTICS, 0), CloseHandle);
if (file.get() == INVALID_HANDLE_VALUE) {
void operator()(T* p) const { std::free(p); }
};
GHC_INLINE std::unique_ptr<REPARSE_DATA_BUFFER, free_deleter<REPARSE_DATA_BUFFER>> getReparseData(const path& p, std::error_code& ec)
{
unique_handle file(CreateFileW(GHC_NATIVEWP(p), 0, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, 0, OPEN_EXISTING, FILE_FLAG_OPEN_REPARSE_POINT | FILE_FLAG_BACKUP_SEMANTICS, 0));
if (!file) {
ec = detail::make_system_error();
return nullptr;
}
std::shared_ptr<REPARSE_DATA_BUFFER> reparseData((REPARSE_DATA_BUFFER*)std::calloc(1, MAXIMUM_REPARSE_DATA_BUFFER_SIZE), std::free);
std::unique_ptr<REPARSE_DATA_BUFFER, free_deleter<REPARSE_DATA_BUFFER>> reparseData(reinterpret_cast<REPARSE_DATA_BUFFER*>(std::calloc(1, MAXIMUM_REPARSE_DATA_BUFFER_SIZE)));
ULONG bufferUsed;
if (DeviceIoControl(file.get(), FSCTL_GET_REPARSE_POINT, 0, 0, reparseData.get(), MAXIMUM_REPARSE_DATA_BUFFER_SIZE, &bufferUsed, 0)) {
return reparseData;
@ -2085,7 +2216,7 @@ GHC_INLINE path resolveSymlink(const path& p, std::error_code& ec)
}
case IO_REPARSE_TAG_MOUNT_POINT:
result = detail::getFullPathName(GHC_NATIVEWP(p), ec);
//result = std::wstring(&reparseData->MountPointReparseBuffer.PathBuffer[reparseData->MountPointReparseBuffer.SubstituteNameOffset / sizeof(WCHAR)], reparseData->MountPointReparseBuffer.SubstituteNameLength / sizeof(WCHAR));
// result = std::wstring(&reparseData->MountPointReparseBuffer.PathBuffer[reparseData->MountPointReparseBuffer.SubstituteNameOffset / sizeof(WCHAR)], reparseData->MountPointReparseBuffer.SubstituteNameLength / sizeof(WCHAR));
break;
default:
break;
@ -2122,10 +2253,10 @@ GHC_INLINE time_t timeFromFILETIME(const FILETIME& ft)
GHC_INLINE void timeToFILETIME(time_t t, FILETIME& ft)
{
LONGLONG ll;
ll = Int32x32To64(t, 10000000) + 116444736000000000;
ft.dwLowDateTime = static_cast<DWORD>(ll);
ft.dwHighDateTime = static_cast<DWORD>(ll >> 32);
ULARGE_INTEGER ull;
ull.QuadPart = static_cast<ULONGLONG>((t * 10000000LL) + 116444736000000000LL);
ft.dwLowDateTime = ull.LowPart;
ft.dwHighDateTime = ull.HighPart;
}
template <typename INFO>
@ -2141,41 +2272,43 @@ GHC_INLINE uintmax_t hard_links_from_INFO<BY_HANDLE_FILE_INFORMATION>(const BY_H
}
template <typename INFO>
GHC_INLINE DWORD reparse_tag_from_INFO(const INFO*)
GHC_INLINE bool is_symlink_from_INFO(const path &p, const INFO* info, std::error_code& ec)
{
return 0;
if ((info->dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT)) {
auto reparseData = detail::getReparseData(p, ec);
if (!ec && reparseData && IsReparseTagMicrosoft(reparseData->ReparseTag) && reparseData->ReparseTag == IO_REPARSE_TAG_SYMLINK) {
return true;
}
}
return false;
}
template <>
GHC_INLINE DWORD reparse_tag_from_INFO(const WIN32_FIND_DATAW* info)
GHC_INLINE bool is_symlink_from_INFO(const path &, const WIN32_FIND_DATAW* info, std::error_code&)
{
return info->dwReserved0;
// dwReserved0 is undefined unless dwFileAttributes includes the
// FILE_ATTRIBUTE_REPARSE_POINT attribute according to microsoft
// documentation. In practice, dwReserved0 is not reset which
// causes it to report the incorrect symlink status.
// Note that microsoft documentation does not say whether there is
// a null value for dwReserved0, so we test for symlink directly
// instead of returning the tag which requires returning a null
// value for non-reparse-point files.
return (info->dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) && info->dwReserved0 == IO_REPARSE_TAG_SYMLINK;
}
template <typename INFO>
GHC_INLINE file_status status_from_INFO(const path& p, const INFO* info, std::error_code& ec, uintmax_t* sz = nullptr, time_t* lwt = nullptr)
{
file_type ft = file_type::unknown;
if (sizeof(INFO) == sizeof(WIN32_FIND_DATAW)) {
if (detail::reparse_tag_from_INFO(info) == IO_REPARSE_TAG_SYMLINK) {
ft = file_type::symlink;
}
if (is_symlink_from_INFO(p, info, ec)) {
ft = file_type::symlink;
}
else if ((info->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)) {
ft = file_type::directory;
}
else {
if ((info->dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT)) {
auto reparseData = detail::getReparseData(p, ec);
if (!ec && reparseData && IsReparseTagMicrosoft(reparseData->ReparseTag) && reparseData->ReparseTag == IO_REPARSE_TAG_SYMLINK) {
ft = file_type::symlink;
}
}
}
if (ft == file_type::unknown) {
if ((info->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)) {
ft = file_type::directory;
}
else {
ft = file_type::regular;
}
ft = file_type::regular;
}
perms prms = perms::owner_read | perms::group_read | perms::others_read;
if (!(info->dwFileAttributes & FILE_ATTRIBUTE_READONLY)) {
@ -3056,7 +3189,8 @@ GHC_INLINE bool has_executable_extension(const path& p)
return false;
}
const path::value_type* ext = fn._path.c_str() + pos + 1;
if (detail::equals_simple_insensitive(ext, GHC_PLATFORM_LITERAL("exe")) || detail::equals_simple_insensitive(ext, GHC_PLATFORM_LITERAL("cmd")) || detail::equals_simple_insensitive(ext, GHC_PLATFORM_LITERAL("bat")) || detail::equals_simple_insensitive(ext, GHC_PLATFORM_LITERAL("com"))) {
if (detail::equals_simple_insensitive(ext, GHC_PLATFORM_LITERAL("exe")) || detail::equals_simple_insensitive(ext, GHC_PLATFORM_LITERAL("cmd")) || detail::equals_simple_insensitive(ext, GHC_PLATFORM_LITERAL("bat")) ||
detail::equals_simple_insensitive(ext, GHC_PLATFORM_LITERAL("com"))) {
return true;
}
}
@ -3215,7 +3349,7 @@ GHC_INLINE path::iterator::iterator(const path& p, const impl_string_type::const
, _root(p.has_root_directory() ? _first + static_cast<string_type::difference_type>(p._prefixLength + p.root_name_length()) : _last)
, _iter(pos)
{
if(pos != _last) {
if (pos != _last) {
updateCurrent();
}
}
@ -3232,7 +3366,7 @@ GHC_INLINE path::impl_string_type::const_iterator path::iterator::increment(cons
// we can only sit on a slash if it is a network name or a root
if (i != _last && *i == preferred_separator) {
if (fromStart && !(i + 1 != _last && *(i + 1) == preferred_separator)) {
// leading double slashes detected, treat this and the
// leadind double slashes detected, treat this and the
// following until a slash as one unit
i = std::find(++i, _last, preferred_separator);
}
@ -3245,10 +3379,14 @@ GHC_INLINE path::impl_string_type::const_iterator path::iterator::increment(cons
}
}
else {
#ifdef GHC_OS_WINDOWS
if (fromStart && i != _last && *i == ':') {
++i;
}
else {
#else
{
#endif
i = std::find(i, _last, preferred_separator);
}
}
@ -3295,10 +3433,10 @@ GHC_INLINE void path::iterator::updateCurrent()
GHC_INLINE path::iterator& path::iterator::operator++()
{
_iter = increment(_iter);
while (_iter != _last && // we didn't reach the end
_iter != _root && // this is not a root position
while (_iter != _last && // we didn't reach the end
_iter != _root && // this is not a root position
*_iter == preferred_separator && // we are on a separator
(_iter + 1) != _last // the slash is not the last char
(_iter + 1) != _last // the slash is not the last char
) {
++_iter;
}
@ -3792,11 +3930,14 @@ GHC_INLINE bool copy_file(const path& from, const path& to, copy_options options
ec = tecf;
return false;
}
if (exists(st) && (!is_regular_file(st) || equivalent(from, to, ec) || (options & (copy_options::skip_existing | copy_options::overwrite_existing | copy_options::update_existing)) == copy_options::none)) {
ec = tect ? tect : detail::make_error_code(detail::portable_error::exists);
return false;
}
if (exists(st)) {
if ((options & copy_options::skip_existing) == copy_options::skip_existing) {
return false;
}
if (!is_regular_file(st) || equivalent(from, to, ec) || (options & (copy_options::overwrite_existing | copy_options::update_existing)) == copy_options::none) {
ec = tect ? tect : detail::make_error_code(detail::portable_error::exists);
return false;
}
if ((options & copy_options::update_existing) == copy_options::update_existing) {
auto from_time = last_write_time(from, ec);
if (ec) {
@ -3836,15 +3977,33 @@ GHC_INLINE bool copy_file(const path& from, const path& to, copy_options options
::close(in);
return false;
}
if (st.permissions() != sf.permissions()) {
if (::fchmod(out, static_cast<mode_t>(sf.permissions() & perms::all)) != 0) {
ec = detail::make_system_error();
::close(in);
::close(out);
return false;
}
}
ssize_t br, bw;
while ((br = ::read(in, buffer.data(), buffer.size())) > 0) {
while (true) {
do { br = ::read(in, buffer.data(), buffer.size()); } while(errno == EINTR);
if(!br) {
break;
}
if(br < 0) {
ec = detail::make_system_error();
::close(in);
::close(out);
return false;
}
ssize_t offset = 0;
do {
if ((bw = ::write(out, buffer.data() + offset, static_cast<size_t>(br))) > 0) {
br -= bw;
offset += bw;
}
else if (bw < 0) {
else if (bw < 0 && errno != EINTR) {
ec = detail::make_system_error();
::close(in);
::close(out);
@ -4079,6 +4238,13 @@ GHC_INLINE path current_path(std::error_code& ec)
return path();
}
return path(std::wstring(buffer.get()), path::native_format);
#elif defined(__GLIBC__)
std::unique_ptr<char, decltype(&std::free)> buffer { ::getcwd(NULL, 0), std::free };
if (buffer == nullptr) {
ec = detail::make_system_error();
return path();
}
return path(buffer.get());
#else
size_t pathlen = static_cast<size_t>(std::max(int(::pathconf(".", _PC_PATH_MAX)), int(PATH_MAX)));
std::unique_ptr<char[]> buffer(new char[pathlen + 1]);
@ -4152,10 +4318,10 @@ GHC_INLINE bool equivalent(const path& p1, const path& p2, std::error_code& ec)
{
ec.clear();
#ifdef GHC_OS_WINDOWS
std::shared_ptr<void> file1(::CreateFileW(GHC_NATIVEWP(p1), 0, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, 0, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0), CloseHandle);
detail::unique_handle file1(::CreateFileW(GHC_NATIVEWP(p1), 0, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, 0, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0));
auto e1 = ::GetLastError();
std::shared_ptr<void> file2(::CreateFileW(GHC_NATIVEWP(p2), 0, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, 0, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0), CloseHandle);
if (file1.get() == INVALID_HANDLE_VALUE || file2.get() == INVALID_HANDLE_VALUE) {
detail::unique_handle file2(::CreateFileW(GHC_NATIVEWP(p2), 0, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, 0, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0));
if (!file1 || !file2) {
#ifdef LWG_2937_BEHAVIOUR
ec = detail::make_system_error(e1 ? e1 : ::GetLastError());
#else
@ -4245,9 +4411,9 @@ GHC_INLINE uintmax_t hard_link_count(const path& p, std::error_code& ec) noexcep
ec.clear();
#ifdef GHC_OS_WINDOWS
uintmax_t result = static_cast<uintmax_t>(-1);
std::shared_ptr<void> file(::CreateFileW(GHC_NATIVEWP(p), 0, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, 0, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0), CloseHandle);
detail::unique_handle file(::CreateFileW(GHC_NATIVEWP(p), 0, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, 0, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0));
BY_HANDLE_FILE_INFORMATION inf;
if (file.get() == INVALID_HANDLE_VALUE) {
if (!file) {
ec = detail::make_system_error();
}
else {
@ -4476,7 +4642,7 @@ GHC_INLINE void last_write_time(const path& p, file_time_type new_time, std::err
ec.clear();
auto d = new_time.time_since_epoch();
#ifdef GHC_OS_WINDOWS
std::shared_ptr<void> file(::CreateFileW(GHC_NATIVEWP(p), FILE_WRITE_ATTRIBUTES, FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL), ::CloseHandle);
detail::unique_handle file(::CreateFileW(GHC_NATIVEWP(p), FILE_WRITE_ATTRIBUTES, FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL));
FILETIME ft;
auto tt = std::chrono::duration_cast<std::chrono::microseconds>(d).count() * 10 + 116444736000000000;
ft.dwLowDateTime = static_cast<DWORD>(tt);
@ -4484,9 +4650,9 @@ GHC_INLINE void last_write_time(const path& p, file_time_type new_time, std::err
if (!::SetFileTime(file.get(), 0, 0, &ft)) {
ec = detail::make_system_error();
}
#elif defined(GHC_OS_MACOS)
#ifdef __MAC_OS_X_VERSION_MIN_REQUIRED
#if __MAC_OS_X_VERSION_MIN_REQUIRED < 101300
#elif defined(GHC_OS_MACOS) && \
(__MAC_OS_X_VERSION_MIN_REQUIRED < __MAC_10_13) || (__IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_11_0) || \
(__TV_OS_VERSION_MIN_REQUIRED < __TVOS_11_0) || (__WATCH_OS_VERSION_MIN_REQUIRED < __WATCHOS_4_0)
struct ::stat fs;
if (::stat(p.c_str(), &fs) == 0) {
struct ::timeval tv[2];
@ -4500,18 +4666,6 @@ GHC_INLINE void last_write_time(const path& p, file_time_type new_time, std::err
}
ec = detail::make_system_error();
return;
#else
struct ::timespec times[2];
times[0].tv_sec = 0;
times[0].tv_nsec = UTIME_OMIT;
times[1].tv_sec = std::chrono::duration_cast<std::chrono::seconds>(d).count();
times[1].tv_nsec = 0; // std::chrono::duration_cast<std::chrono::nanoseconds>(d).count() % 1000000000;
if (::utimensat(AT_FDCWD, p.c_str(), times, AT_SYMLINK_NOFOLLOW) != 0) {
ec = detail::make_system_error();
}
return;
#endif
#endif
#else
#ifndef UTIME_OMIT
#define UTIME_OMIT ((1l << 30) - 2l)
@ -4524,7 +4678,7 @@ GHC_INLINE void last_write_time(const path& p, file_time_type new_time, std::err
#if defined(__ANDROID_API__) && __ANDROID_API__ < 12
if (syscall(__NR_utimensat, AT_FDCWD, p.c_str(), times, AT_SYMLINK_NOFOLLOW) != 0) {
#else
if (::utimensat(AT_FDCWD, p.c_str(), times, AT_SYMLINK_NOFOLLOW) != 0) {
if (::utimensat((int)AT_FDCWD, p.c_str(), times, AT_SYMLINK_NOFOLLOW) != 0) {
#endif
ec = detail::make_system_error();
}
@ -4687,9 +4841,9 @@ GHC_INLINE bool remove(const path& p, std::error_code& ec) noexcept
}
ec = detail::make_system_error(error);
}
else if(attr & FILE_ATTRIBUTE_READONLY) {
else if (attr & FILE_ATTRIBUTE_READONLY) {
auto new_attr = attr & ~static_cast<DWORD>(FILE_ATTRIBUTE_READONLY);
if(!SetFileAttributesW(cstr, new_attr)) {
if (!SetFileAttributesW(cstr, new_attr)) {
auto error = ::GetLastError();
ec = detail::make_system_error(error);
}
@ -4739,7 +4893,7 @@ GHC_INLINE uintmax_t remove_all(const path& p, std::error_code& ec) noexcept
return static_cast<uintmax_t>(-1);
}
std::error_code tec;
auto fs = status(p, tec);
auto fs = symlink_status(p, tec);
if (exists(fs) && is_directory(fs)) {
for (auto iter = directory_iterator(p, ec); iter != directory_iterator(); iter.increment(ec)) {
if (ec && !detail::is_not_found_error(ec)) {
@ -4830,8 +4984,8 @@ GHC_INLINE void resize_file(const path& p, uintmax_t size, std::error_code& ec)
#endif
return;
}
std::shared_ptr<void> file(CreateFileW(GHC_NATIVEWP(p), GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL), CloseHandle);
if (file.get() == INVALID_HANDLE_VALUE) {
detail::unique_handle file(CreateFileW(GHC_NATIVEWP(p), GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL));
if (!file) {
ec = detail::make_system_error();
}
else if (SetFilePointerEx(file.get(), lisize, NULL, FILE_BEGIN) == 0 || SetEndOfFile(file.get()) == 0) {
@ -5139,7 +5293,7 @@ GHC_INLINE void directory_entry::refresh()
{
std::error_code ec;
refresh(ec);
if (ec) {
if (ec && (_status.type() == file_type::none || _symlink_status.type() != file_type::symlink)) {
throw filesystem_error(detail::systemErrorText(ec.value()), _path, ec);
}
}
@ -5174,7 +5328,7 @@ GHC_INLINE file_type directory_entry::status_file_type() const
GHC_INLINE file_type directory_entry::status_file_type(std::error_code& ec) const noexcept
{
if(_status.type() != file_type::none) {
if (_status.type() != file_type::none) {
ec.clear();
return _status.type();
}
@ -5288,7 +5442,7 @@ GHC_INLINE bool directory_entry::is_symlink() const
GHC_INLINE bool directory_entry::is_symlink(std::error_code& ec) const noexcept
{
if(_symlink_status.type() != file_type::none) {
if (_symlink_status.type() != file_type::none) {
ec.clear();
return _symlink_status.type() == file_type::symlink;
}
@ -5550,7 +5704,7 @@ public:
, _entry(nullptr)
{
if (!path.empty()) {
_dir = ::opendir(path.native().c_str());
do { _dir = ::opendir(path.native().c_str()); } while(errno == EINTR);
if (!_dir) {
auto error = errno;
_base = filesystem::path();
@ -5577,7 +5731,7 @@ public:
do {
skip = false;
errno = 0;
_entry = ::readdir(_dir);
do { _entry = ::readdir(_dir); } while(errno == EINTR);
if (_entry) {
_dir_entry._path = _base;
_dir_entry._path.append_name(_entry->d_name);
@ -5591,7 +5745,7 @@ public:
::closedir(_dir);
_dir = nullptr;
_dir_entry._path.clear();
if (errno) {
if (errno && errno != EINTR) {
ec = detail::make_system_error();
}
break;
@ -5602,30 +5756,16 @@ public:
void copyToDirEntry()
{
#ifdef GHC_NO_DIRENT_D_TYPE
_dir_entry._symlink_status = file_status();
_dir_entry._status = file_status();
#else
_dir_entry._symlink_status.permissions(perms::unknown);
switch(_entry->d_type) {
case DT_BLK: _dir_entry._symlink_status.type(file_type::block); break;
case DT_CHR: _dir_entry._symlink_status.type(file_type::character); break;
case DT_DIR: _dir_entry._symlink_status.type(file_type::directory); break;
case DT_FIFO: _dir_entry._symlink_status.type(file_type::fifo); break;
case DT_LNK: _dir_entry._symlink_status.type(file_type::symlink); break;
case DT_REG: _dir_entry._symlink_status.type(file_type::regular); break;
case DT_SOCK: _dir_entry._symlink_status.type(file_type::socket); break;
case DT_UNKNOWN: _dir_entry._symlink_status.type(file_type::none); break;
default: _dir_entry._symlink_status.type(file_type::unknown); break;
}
if (_entry->d_type != DT_LNK) {
auto ft = detail::file_type_from_dirent(*_entry);
_dir_entry._symlink_status.type(ft);
if (ft != file_type::symlink) {
_dir_entry._status = _dir_entry._symlink_status;
}
else {
_dir_entry._status.type(file_type::none);
_dir_entry._status.permissions(perms::unknown);
}
#endif
_dir_entry._file_size = static_cast<uintmax_t>(-1);
_dir_entry._hard_link_count = static_cast<uintmax_t>(-1);
_dir_entry._last_write_time = 0;
@ -5856,10 +5996,10 @@ GHC_INLINE recursive_directory_iterator& recursive_directory_iterator::increment
{
bool isSymLink = (*this)->is_symlink(ec);
bool isDir = !ec && (*this)->is_directory(ec);
if(isSymLink && detail::is_not_found_error(ec)) {
if (isSymLink && detail::is_not_found_error(ec)) {
ec.clear();
}
if(!ec) {
if (!ec) {
if (recursion_pending() && isDir && (!isSymLink || (options() & directory_options::follow_directory_symlink) != directory_options::none)) {
_impl->_dir_iter_stack.push(directory_iterator((*this)->path(), _impl->_options, ec));
}