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tinyexpr: use math.h constants, constexpr

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This commit is contained in:
Aaron Gyes 2019-01-25 17:06:58 -08:00
parent aafefb2300
commit 6ef617f8e7
1 changed files with 9 additions and 8 deletions
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17
src/tinyexpr.cpp
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@ -123,9 +123,10 @@ void te_free(te_expr *n) {
}
static double pi() {return 3.14159265358979323846;}
static double e() {return 2.71828182845904523536;}
static double fac(double a) {/* simplest version of fac */
static constexpr double pi() { return M_PI; }
static constexpr double e() { return M_E; }
static double fac(double a) { /* simplest version of fac */
if (a < 0.0)
return NAN;
if (a > UINT_MAX)
@ -198,11 +199,11 @@ static const te_builtin *find_builtin(const char *name, int len) {
return NULL;
}
static double add(double a, double b) {return a + b;}
static double sub(double a, double b) {return a - b;}
static double mul(double a, double b) {return a * b;}
static double divide(double a, double b) {return a / b;}
static double negate(double a) {return -a;}
static constexpr double add(double a, double b) {return a + b;}
static constexpr double sub(double a, double b) {return a - b;}
static constexpr double mul(double a, double b) {return a * b;}
static constexpr double divide(double a, double b) {return a / b;}
static constexpr double negate(double a) {return -a;}
void next_token(state *s) {
s->type = TOK_NULL;