108 lines
2.8 KiB
C
108 lines
2.8 KiB
C
#ifndef _LIBC_MATH_H
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#define _LIBC_MATH_H
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#pragma once
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define HUGE_VAL __builtin_huge_val()
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#define INFINITY __builtin_inff()
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#define NAN __builtin_nanf("")
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/*
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* X/Open math constants. Not in ISO C, but ported code assumes them freely
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* (NetSurf's about:chart uses M_PI and M_PI_2).
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*/
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#define M_E 2.7182818284590452354
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#define M_LOG2E 1.4426950408889634074
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#define M_LOG10E 0.43429448190325182765
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#define M_LN2 0.69314718055994530942
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#define M_LN10 2.30258509299404568402
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#define M_PI 3.14159265358979323846
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#define M_PI_2 1.57079632679489661923
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#define M_PI_4 0.78539816339744830962
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#define M_1_PI 0.31830988618379067154
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#define M_2_PI 0.63661977236758134308
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#define M_2_SQRTPI 1.12837916709551257390
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#define M_SQRT2 1.41421356237309504880
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#define M_SQRT1_2 0.70710678118654752440
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/* C99 floating-point classification. */
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#define FP_NAN 0
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#define FP_INFINITE 1
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#define FP_ZERO 2
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#define FP_SUBNORMAL 3
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#define FP_NORMAL 4
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#define fpclassify(x) \
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__builtin_fpclassify(FP_NAN, FP_INFINITE, FP_NORMAL, FP_SUBNORMAL, \
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FP_ZERO, x)
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#define isnan(x) __builtin_isnan(x)
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#define isinf(x) __builtin_isinf(x)
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#define isfinite(x) __builtin_isfinite(x)
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#define isnormal(x) __builtin_isnormal(x)
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#define signbit(x) __builtin_signbit(x)
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double fabs(double x);
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double frexp(double x, int *exp);
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/* C89 modf and the C99 float variants assumed by hosted libstdc++
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(--with-newlib crossconfig). The float forms wrap the double
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implementations. */
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double modf(double x, double *iptr);
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float modff(float x, float *iptr);
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double hypot(double x, double y);
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float hypotf(float x, float y);
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float acosf(float x);
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float asinf(float x);
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float atanf(float x);
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float atan2f(float y, float x);
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float coshf(float x);
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float expf(float x);
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float fmodf(float x, float y);
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float frexpf(float x, int *exp);
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float ldexpf(float x, int exp);
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float logf(float x);
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float log10f(float x);
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float powf(float x, float y);
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float sinhf(float x);
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float tanf(float x);
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float tanhf(float x);
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double ldexp(double x, int n);
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long double ldexpl(long double x, int n);
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double floor(double x);
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double ceil(double x);
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double sqrt(double x);
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double sin(double x);
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double cos(double x);
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double tan(double x);
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double asin(double x);
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double acos(double x);
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double atan(double x);
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double atan2(double y, double x);
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double pow(double base, double exp);
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double log(double x);
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double log2(double x);
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double log10(double x);
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double exp(double x);
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double fmod(double x, double y);
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double sinh(double x);
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double cosh(double x);
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double tanh(double x);
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double round(double x);
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float floorf(float x);
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float ceilf(float x);
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float fabsf(float x);
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float sqrtf(float x);
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float sinf(float x);
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float cosf(float x);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _LIBC_MATH_H */
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