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- /* $NetBSD: math.h,v 1.10 1994/10/26 00:56:05 cgd Exp $ */
-
- /*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunPro, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
- * is preserved.
- * ====================================================
- */
-
- /*
- * @(#)fdlibm.h 5.1 93/09/24
- */
-
- #ifndef _MATH_H_
- #define _MATH_H_
-
- /*
- * ANSI/POSIX
- */
- extern char __infinity[];
- #define HUGE_VAL (*(double *) __infinity)
-
- /*
- * XOPEN/SVID
- */
- #if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
- #define M_E 2.7182818284590452354 /* e */
- #define M_LOG2E 1.4426950408889634074 /* log 2e */
- #define M_LOG10E 0.43429448190325182765 /* log 10e */
- #define M_LN2 0.69314718055994530942 /* log e2 */
- #define M_LN10 2.30258509299404568402 /* log e10 */
- #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 MAXFLOAT ((float)3.40282346638528860e+38)
- extern int signgam;
-
- #if !defined(_XOPEN_SOURCE)
- enum fdversion {fdlibm_ieee = -1, fdlibm_svid, fdlibm_xopen, fdlibm_posix};
-
- #define _LIB_VERSION_TYPE enum fdversion
- #define _LIB_VERSION _fdlib_version
-
- /* if global variable _LIB_VERSION is not desirable, one may
- * change the following to be a constant by:
- * #define _LIB_VERSION_TYPE const enum version
- * In that case, after one initializes the value _LIB_VERSION (see
- * s_lib_version.c) during compile time, it cannot be modified
- * in the middle of a program
- */
- extern _LIB_VERSION_TYPE _LIB_VERSION;
-
- #define _IEEE_ fdlibm_ieee
- #define _SVID_ fdlibm_svid
- #define _XOPEN_ fdlibm_xopen
- #define _POSIX_ fdlibm_posix
-
- struct exception {
- int type;
- char *name;
- double arg1;
- double arg2;
- double retval;
- };
-
- #define HUGE MAXFLOAT
-
- /*
- * set X_TLOSS = pi*2**52, which is possibly defined in <values.h>
- * (one may replace the following line by "#include <values.h>")
- */
-
- #define X_TLOSS 1.41484755040568800000e+16
-
- #define DOMAIN 1
- #define SING 2
- #define OVERFLOW 3
- #define UNDERFLOW 4
- #define TLOSS 5
- #define PLOSS 6
-
- #endif /* !_XOPEN_SOURCE */
- #endif /* !_ANSI_SOURCE && !_POSIX_SOURCE */
-
-
- #include <sys/cdefs.h>
- __BEGIN_DECLS
- /*
- * ANSI/POSIX
- */
- extern double acos __P((double));
- extern double asin __P((double));
- extern double atan __P((double));
- extern double atan2 __P((double, double));
- extern double cos __P((double));
- extern double sin __P((double));
- extern double tan __P((double));
-
- extern double cosh __P((double));
- extern double sinh __P((double));
- extern double tanh __P((double));
-
- extern double exp __P((double));
- extern double frexp __P((double, int *));
- extern double ldexp __P((double, int));
- extern double log __P((double));
- extern double log10 __P((double));
- extern double modf __P((double, double *));
-
- extern double pow __P((double, double));
- extern double sqrt __P((double));
-
- extern double ceil __P((double));
- extern double fabs __P((double));
- extern double floor __P((double));
- extern double fmod __P((double, double));
-
- #if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
- extern double erf __P((double));
- extern double erfc __P((double));
- extern double gamma __P((double));
- extern double hypot __P((double, double));
- extern int isinf __P((double));
- extern int isnan __P((double));
- extern int finite __P((double));
- extern double j0 __P((double));
- extern double j1 __P((double));
- extern double jn __P((int, double));
- extern double lgamma __P((double));
- extern double y0 __P((double));
- extern double y1 __P((double));
- extern double yn __P((int, double));
-
- #if !defined(_XOPEN_SOURCE)
- extern double acosh __P((double));
- extern double asinh __P((double));
- extern double atanh __P((double));
- extern double cbrt __P((double));
- extern double logb __P((double));
- extern double nextafter __P((double, double));
- extern double remainder __P((double, double));
- extern double scalb __P((double, double));
-
- extern int matherr __P((struct exception *));
-
- /*
- * IEEE Test Vector
- */
- extern double significand __P((double));
-
- /*
- * Functions callable from C, intended to support IEEE arithmetic.
- */
- extern double copysign __P((double, double));
- extern int ilogb __P((double));
- extern double rint __P((double));
- extern double scalbn __P((double, int));
-
- /*
- * BSD math library entry points
- */
- extern double cabs();
- extern double drem __P((double, double));
- extern double expm1 __P((double));
- extern double log1p __P((double));
-
- /*
- * Reentrant version of gamma & lgamma; passes signgam back by reference
- * as the second argument; user must allocate space for signgam.
- */
- #ifdef _REENTRANT
- extern double gamma_r __P((double, int *));
- extern double lgamma_r __P((double, int *));
- #endif /* _REENTRANT */
-
-
- /* float versions of ANSI/POSIX functions */
- extern float acosf __P((float));
- extern float asinf __P((float));
- extern float atanf __P((float));
- extern float atan2f __P((float, float));
- extern float cosf __P((float));
- extern float sinf __P((float));
- extern float tanf __P((float));
-
- extern float coshf __P((float));
- extern float sinhf __P((float));
- extern float tanhf __P((float));
-
- extern float expf __P((float));
- extern float frexpf __P((float, int *));
- extern float ldexpf __P((float, int));
- extern float logf __P((float));
- extern float log10f __P((float));
- extern float modff __P((float, float *));
-
- extern float powf __P((float, float));
- extern float sqrtf __P((float));
-
- extern float ceilf __P((float));
- extern float fabsf __P((float));
- extern float floorf __P((float));
- extern float fmodf __P((float, float));
-
- extern float erff __P((float));
- extern float erfcf __P((float));
- extern float gammaf __P((float));
- extern float hypotf __P((float, float));
- extern int isnanf __P((float));
- extern int finitef __P((float));
- extern float j0f __P((float));
- extern float j1f __P((float));
- extern float jnf __P((int, float));
- extern float lgammaf __P((float));
- extern float y0f __P((float));
- extern float y1f __P((float));
- extern float ynf __P((int, float));
-
- extern float acoshf __P((float));
- extern float asinhf __P((float));
- extern float atanhf __P((float));
- extern float cbrtf __P((float));
- extern float logbf __P((float));
- extern float nextafterf __P((float, float));
- extern float remainderf __P((float, float));
- extern float scalbf __P((float, float));
-
- /*
- * float version of IEEE Test Vector
- */
- extern float significandf __P((float));
-
- /*
- * Float versions of functions callable from C, intended to support
- * IEEE arithmetic.
- */
- extern float copysignf __P((float, float));
- extern int ilogbf __P((float));
- extern float rintf __P((float));
- extern float scalbnf __P((float, int));
-
- /*
- * float versions of BSD math library entry points
- */
- extern float cabsf ();
- extern float dremf __P((float, float));
- extern float expm1f __P((float));
- extern float log1pf __P((float));
-
- /*
- * Float versions of reentrant version of gamma & lgamma; passes
- * signgam back by reference as the second argument; user must
- * allocate space for signgam.
- */
- #ifdef _REENTRANT
- extern float gammaf_r __P((float, int *));
- extern float lgammaf_r __P((float, int *));
- #endif /* _REENTRANT */
-
- #endif /* !_XOPEN_SOURCE */
- #endif /* !_ANSI_SOURCE && !_POSIX_SOURCE */
- __END_DECLS
-
- #endif /* _MATH_H_ */
-