cinrs-core 0.1.0

The C front end behind the cinrs crate: lexer, preprocessor, parser, semantic analysis, code generation
Documentation 
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/* <math.h> — mathematics (C99 7.12).
 *
 * # Linking
 *
 * Nothing here asks for `-lm`. On glibc 2.35 and later the maths functions are
 * part of libc itself, and on every target Rust supports the standard library
 * already links whatever else is needed, so a call to `sqrt` from a `c99!`
 * block resolves with no help. A platform where that stops being true does not
 * need a new header — put
 *
 *     #pragma cinrs link "m"
 *
 * in the translation unit and the generated `extern` block carries
 * `#[link(name = "m")]`.
 *
 * # What is not here
 *
 * The type-generic macros of <tgmath.h>, the classification macros
 * (`isnan`, `isinf`, `fpclassify`), and `long double` (which cinrs makes a
 * `double`) are absent. `NAN` and `INFINITY` are ordinary constant
 * expressions, which is all a program normally wants them for.
 */
#ifndef _CINRS_MATH_H
#define _CINRS_MATH_H

/* An overflowing decimal constant is infinity, exactly as the standard says a
 * constant too large for its type becomes. */
#define HUGE_VAL 1e999
#define HUGE_VALF 1e999f
#define INFINITY 1e999f
#define NAN (0.0f / 0.0f)

#define M_E 2.7182818284590452354
#define M_LOG2E 1.4426950408889634074
#define M_LOG10E 0.43429448190325182765
#define M_LN2 0.69314718055994530942
#define M_LN10 2.30258509299404568402
#define M_PI 3.14159265358979323846
#define M_PI_2 1.57079632679489661923
#define M_PI_4 0.78539816339744830962
#define M_1_PI 0.31830988618379067154
#define M_2_PI 0.63661977236758134308
#define M_2_SQRTPI 1.12837916709551257390
#define M_SQRT2 1.41421356237309504880
#define M_SQRT1_2 0.70710678118654752440

double sin(double x);
double cos(double x);
double tan(double x);
double asin(double x);
double acos(double x);
double atan(double x);
double atan2(double y, double x);
double sinh(double x);
double cosh(double x);
double tanh(double x);
double exp(double x);
double exp2(double x);
double log(double x);
double log10(double x);
double log2(double x);
double pow(double x, double y);
double sqrt(double x);
double cbrt(double x);
double fabs(double x);
double floor(double x);
double ceil(double x);
double round(double x);
double trunc(double x);
double fmod(double x, double y);
double fmin(double x, double y);
double fmax(double x, double y);
double hypot(double x, double y);
double copysign(double x, double y);
double ldexp(double x, int exp);
double frexp(double value, int *exp);
double modf(double value, double *iptr);

float sinf(float x);
float cosf(float x);
float tanf(float x);
float asinf(float x);
float acosf(float x);
float atanf(float x);
float atan2f(float y, float x);
float sinhf(float x);
float coshf(float x);
float tanhf(float x);
float expf(float x);
float exp2f(float x);
float logf(float x);
float log10f(float x);
float log2f(float x);
float powf(float x, float y);
float sqrtf(float x);
float cbrtf(float x);
float fabsf(float x);
float floorf(float x);
float ceilf(float x);
float roundf(float x);
float truncf(float x);
float fmodf(float x, float y);
float fminf(float x, float y);
float fmaxf(float x, float y);
float hypotf(float x, float y);
float copysignf(float x, float y);
float ldexpf(float x, int exp);
float frexpf(float value, int *exp);
float modff(float value, float *iptr);

#endif /* _CINRS_MATH_H */