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https://github.com/freebsd/freebsd-src.git
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eaa86f9d7f
for gcc >= 2.5 and no-ops for gcc >= 2.6. Converted to use __dead2 or __pure2 where it wasn't already done, except in math.h where use of __pure was mostly wrong.
141 lines
5.2 KiB
C
141 lines
5.2 KiB
C
/*
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* Copyright (c) 1985, 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)math.h 8.1 (Berkeley) 6/2/93
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*/
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#ifndef _MATH_H_
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#define _MATH_H_
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#if defined(vax) || defined(tahoe) /* DBL_MAX from float.h */
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#define HUGE_VAL 1.701411834604692294E+38
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#else
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#define HUGE_VAL 1e500 /* IEEE: positive infinity */
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#endif
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#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
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#if defined(vax) || defined(tahoe)
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/*
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* HUGE for the VAX and Tahoe converts to the largest possible F-float value.
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* This implies an understanding of the conversion behavior of atof(3). It
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* was defined to be the largest float so that overflow didn't occur when it
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* was assigned to a single precision number. HUGE_VAL is strongly preferred.
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*/
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#define HUGE 1.701411733192644270E+38
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#else
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#define HUGE HUGE_VAL
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#endif
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#define M_E 2.7182818284590452354 /* e */
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#define M_LOG2E 1.4426950408889634074 /* log 2e */
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#define M_LOG10E 0.43429448190325182765 /* log 10e */
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#define M_LN2 0.69314718055994530942 /* log e2 */
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#define M_LN10 2.30258509299404568402 /* log e10 */
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#define M_PI 3.14159265358979323846 /* pi */
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#define M_PI_2 1.57079632679489661923 /* pi/2 */
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#define M_PI_4 0.78539816339744830962 /* pi/4 */
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#define M_1_PI 0.31830988618379067154 /* 1/pi */
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#define M_2_PI 0.63661977236758134308 /* 2/pi */
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#define M_2_SQRTPI 1.12837916709551257390 /* 2/sqrt(pi) */
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#define M_SQRT2 1.41421356237309504880 /* sqrt(2) */
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#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */
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#endif /* !_ANSI_SOURCE && !_POSIX_SOURCE */
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#include <sys/cdefs.h>
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/*
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* Most of these functions have the side effect of setting errno, except
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* in the (broken) BSD libm, so they not declared as __pure2.
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*/
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__BEGIN_DECLS
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double acos __P((double));
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double asin __P((double));
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double atan __P((double));
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double atan2 __P((double, double));
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double ceil __P((double));
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double cos __P((double));
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double cosh __P((double));
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double exp __P((double));
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double fabs __P((double));
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double floor __P((double));
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double fmod __P((double, double));
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double frexp __P((double, int *)); /* fundamentally !__pure2 */
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double ldexp __P((double, int));
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double log __P((double));
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double log10 __P((double));
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double modf __P((double, double *)); /* fundamentally !__pure2 */
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double pow __P((double, double));
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double sin __P((double));
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double sinh __P((double));
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double sqrt __P((double));
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double tan __P((double));
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double tanh __P((double));
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/*
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* These functions are non-ANSI so they can be "right". The ones that
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* don't set errno in [lib]msun are declared as __pure2.
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*/
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#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
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double acosh __P((double));
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double asinh __P((double));
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double atanh __P((double));
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double cabs(); /* we can't describe cabs()'s argument properly */
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double cbrt __P((double)) __pure2;
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double copysign __P((double, double)) __pure2;
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double drem __P((double, double));
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double erf __P((double));
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double erfc __P((double)) __pure2;
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double expm1 __P((double)) __pure2;
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int finite __P((double)) __pure2;
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double hypot __P((double, double));
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#if defined(vax) || defined(tahoe)
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double infnan __P((int));
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#endif
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int isinf __P((double)) __pure2;
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int isnan __P((double)) __pure2;
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double j0 __P((double));
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double j1 __P((double));
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double jn __P((int, double));
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double lgamma __P((double));
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double log1p __P((double)) __pure2;
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double logb __P((double)) __pure2;
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double rint __P((double)) __pure2;
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double scalb __P((double, int));
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double y0 __P((double));
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double y1 __P((double));
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double yn __P((int, double));
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#endif
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__END_DECLS
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#endif /* !_MATH_H_ */
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