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-rw-r--r--include/math.h300
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diff --git a/include/math.h b/include/math.h
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index 00000000..cc9befb7
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+++ b/include/math.h
@@ -0,0 +1,300 @@
+#ifndef _MATH_H
+#define _MATH_H
+
+#define __NEED___uint16_t
+#define __NEED___uint32_t
+#define __NEED___uint64_t
+#include <bits/alltypes.h>
+
+#define M_E 2.7182818284590452354 /* e */
+#define M_LOG2E 1.4426950408889634074 /* log_2 e */
+#define M_LOG10E 0.43429448190325182765 /* log_10 e */
+#define M_LN2 0.69314718055994530942 /* log_e 2 */
+#define M_LN10 2.30258509299404568402 /* log_e 10 */
+#define M_PI 3.14159265358979323846 /* pi */
+#define M_PI_2 1.57079632679489661923 /* pi/2 */
+#define M_PI_4 0.78539816339744830962 /* pi/4 */
+#define M_1_PI 0.31830988618379067154 /* 1/pi */
+#define M_2_PI 0.63661977236758134308 /* 2/pi */
+#define M_2_SQRTPI 1.12837916709551257390 /* 2/sqrt(pi) */
+#define M_SQRT2 1.41421356237309504880 /* sqrt(2) */
+#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */
+
+#define __MAKE_FLOAT(i) (((union { int __i; float __f; }){ .__i = i }).__f)
+
+#define NAN __MAKE_FLOAT(0x7fc00000)
+#define INFINITY __MAKE_FLOAT(0x7f800000)
+
+#define HUGE_VALF INFINITY
+#define HUGE_VAL ((double)INFINITY)
+#define HUGE_VALL ((long double)INFINITY)
+
+#define MAXFLOAT __MAKE_FLOAT(0x7f7fffff)
+
+#define MATH_ERRNO 1
+#define MATH_EXCEPT 2
+#define math_errhandling 2
+
+#define FP_ILOGBNAN (((unsigned)-1)>>1)
+#define FP_ILOGB0 (~FP_ILOGBNAN)
+
+#define FP_NAN 0
+#define FP_INFINITE 1
+#define FP_ZERO 2
+#define FP_SUBNORMAL 3
+#define FP_NORMAL 4
+
+int __fpclassifyf(float);
+int __fpclassify(double);
+int __fpclassifyl(long double);
+
+#define fpclassify(x) ( \
+ sizeof(x) == sizeof(float) ? __fpclassifyf(x) : \
+ sizeof(x) == sizeof(double) ? __fpclassify(x) : \
+ __fpclassifyl(x) )
+
+#define isinf(x) (fpclassify(x) == FP_INFINITE)
+#define isnan(x) (fpclassify(x) == FP_NAN)
+#define isnormal(x) (fpclassify(x) == FP_NORMAL)
+#define isfinite(x) (fpclassify(x) > FP_INFINITE)
+
+double acos(double);
+float acosf(float);
+long double acosl(long double);
+
+double acosh(double);
+float acoshf(float);
+long double acoshl(long double);
+
+double asin(double);
+float asinf(float);
+long double asinl(long double);
+
+double asinh(double);
+float asinhf(float);
+long double asinhl(long double);
+
+double atan(double);
+float atanf(float);
+long double atanl(long double);
+
+double atan2(double, double);
+float atan2f(float, float);
+long double atan2l(long double, long double);
+
+double atanh(double);
+float atanhf(float);
+long double atanhl(long double);
+
+double cbrt(double);
+float cbrtf(float);
+long double cbrtl(long double);
+
+double ceil(double);
+float ceilf(float);
+long double ceill(long double);
+
+double copysign(double, double);
+float copysignf(float, float);
+long double copysignl(long double, long double);
+
+double cos(double);
+float cosf(float);
+long double cosl(long double);
+
+double cosh(double);
+float coshf(float);
+long double coshl(long double);
+
+double erf(double);
+float erff(float);
+long double erfl(long double);
+
+double erfc(double);
+float erfcf(float);
+long double erfcl(long double);
+
+double exp(double);
+float expf(float);
+long double expl(long double);
+
+double exp2(double);
+float exp2f(float);
+long double exp2l(long double);
+
+double expm1(double);
+float expm1f(float);
+long double expm1l(long double);
+
+double fabs(double);
+float fabsf(float);
+long double fabsl(long double);
+
+double fdim(double, double);
+float fdimf(float, float);
+long double fdiml(long double, long double);
+
+double floor(double);
+float floorf(float);
+long double floorl(long double);
+
+double fma(double, double, double);
+float fmaf(float, float, float);
+long double fmal(long double, long double, long double);
+
+double fmax(double, double);
+float fmaxf(float, float);
+long double fmaxl(long double, long double);
+
+double fmin(double, double);
+float fminf(float, float);
+long double fminl(long double, long double);
+
+double fmod(double, double);
+float fmodf(float, float);
+long double fmodl(long double, long double);
+
+double frexp(double, int *);
+float frexpf(float value, int *);
+long double frexpl(long double value, int *);
+
+double hypot(double, double);
+float hypotf(float, float);
+long double hypotl(long double, long double);
+
+int ilogb(double);
+int ilogbf(float);
+int ilogbl(long double);
+
+double ldexp(double, int);
+float ldexpf(float, int);
+long double ldexpl(long double, int);
+
+double lgamma(double);
+float lgammaf(float);
+long double lgammal(long double);
+
+long long llrint(double);
+long long llrintf(float);
+long long llrintl(long double);
+
+long long llround(double);
+long long llroundf(float);
+long long llroundl(long double);
+
+double log(double);
+float logf(float);
+long double logl(long double);
+
+double log10(double);
+float log10f(float);
+long double log10l(long double);
+
+double log1p(double);
+float log1pf(float);
+long double log1pl(long double);
+
+double log2(double);
+float log2f(float);
+long double log2l(long double);
+
+double logb(double);
+float logbf(float);
+long double logbl(long double);
+
+long lrint(double);
+long lrintf(float);
+long lrintl(long double);
+
+long lround(double);
+long lroundf(float);
+long lroundl(long double);
+
+double modf(double, double *);
+float modff(float, float *);
+long double modfl(long double, long double *);
+
+double nan(const char *);
+float nanf(const char *);
+long double nanl(const char *);
+
+double nearbyint(double);
+float nearbyintf(float);
+long double nearbyintl(long double);
+
+double nextafter(double, double);
+float nextafterf(float, float);
+long double nextafterl(long double, long double);
+
+double nexttoward(double, long double);
+float nexttowardf(float, long double);
+long double nexttowardl(long double, long double);
+
+double pow(double, double);
+float powf(float, float);
+long double powl(long double, long double);
+
+double remainder(double, double);
+float remainderf(float, float);
+long double remainderl(long double, long double);
+
+double remquo(double, double, int *);
+float remquof(float, float, int *);
+long double remquol(long double, long double, int *);
+
+double rint(double);
+float rintf(float);
+long double rintl(long double);
+
+double round(double);
+float roundf(float);
+long double roundl(long double);
+
+double scalbln(double, long);
+float scalblnf(float, long);
+long double scalblnl(long double, long);
+
+double scalbn(double, int);
+float scalbnf(float, int);
+long double scalbnl(long double, int);
+
+double sin(double);
+float sinf(float);
+long double sinl(long double);
+
+double sinh(double);
+float sinhf(float);
+long double sinhl(long double);
+
+double sqrt(double);
+float sqrtf(float);
+long double sqrtl(long double);
+
+double tan(double);
+float tanf(float);
+long double tanl(long double);
+
+double tanh(double);
+float tanhf(float);
+long double tanhl(long double);
+
+double tgamma(double);
+float tgammaf(float);
+long double tgammal(long double);
+
+double trunc(double);
+float truncf(float);
+long double truncl(long double);
+
+/* XSI stuff */
+double j0(double);
+double j1(double);
+double jn(int, double);
+double scalb(double, double);
+double y0(double);
+double y1(double);
+double yn(int, double);
+
+extern int signgam;
+
+#endif
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