fish-shell/src/builtin_math.h

// Prototypes for executing builtin_math function.
#ifndef FISH_BUILTIN_MATH_H
#define FISH_BUILTIN_MATH_H

#include "maybe.h"

class parser_t;
struct io_streams_t;

maybe_t<int> builtin_math(parser_t &parser, io_streams_t &streams, const wchar_t **argv);
#endif
Implement bare minimum builtin `math` command This is the second baby step in resolving #3157. Implement a bare minimum builtin `math` command. This is solely to ensure that fish can be built and run in the Travis build environments. This is okay since anyone running `builtin math` today is already getting an error response. Also, more work is needed to support bare var references, multiple result values, etc. 2017-08-23 10:57:30 +08:00			`// Prototypes for executing builtin_math function.`
			`#ifndef FISH_BUILTIN_MATH_H`
			`#define FISH_BUILTIN_MATH_H`

Change builtins to return maybe_t<int> instead of int 2020-07-19 01:25:43 +08:00			`#include "maybe.h"`

Implement bare minimum builtin `math` command This is the second baby step in resolving #3157. Implement a bare minimum builtin `math` command. This is solely to ensure that fish can be built and run in the Travis build environments. This is okay since anyone running `builtin math` today is already getting an error response. Also, more work is needed to support bare var references, multiple result values, etc. 2017-08-23 10:57:30 +08:00			`class parser_t;`
			`struct io_streams_t;`

Make arguments to builtins const Prior to this change, builtins would take their arguments as `wchar_t `. This implies that the order of the arguments may be changed (which is true, `wgetopter` does so) but also that the strings themselves may be changed, which no builtin should do. Switch them all to take `const wchar_t ` instead: now the arguments may be rearranged but their contents may no longer be modified. 2021-02-14 10:41:09 +08:00			`maybe_t<int> builtin_math(parser_t &parser, io_streams_t &streams, const wchar_t **argv);`
Implement bare minimum builtin `math` command This is the second baby step in resolving #3157. Implement a bare minimum builtin `math` command. This is solely to ensure that fish can be built and run in the Travis build environments. This is okay since anyone running `builtin math` today is already getting an error response. Also, more work is needed to support bare var references, multiple result values, etc. 2017-08-23 10:57:30 +08:00			`#endif`