furnace/extern/macports-legacy-support/include/math.h

109 lines
3.1 KiB
C
Raw Normal View History

/*
* Copyright (c) 2018 Chris Jones <jonesc@macports.org>
* Copyright (c) 2019 Michael Dickens <michaelld@macports.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _MACPORTS_MATH_H_
#define _MACPORTS_MATH_H_
/* MP support header */
#include "MacportsLegacySupport.h"
#if __MP_LEGACY_SUPPORT_LLROUND__
__MP__BEGIN_DECLS
/*
* These functions are present in the system math library but their
* prototypes might not be declared under some circumstances. Declare
* them here anyway.
*/
/*
* this is the same condition that defines the function prototypes in
* the GCC <math.h>.
*/
#if !(__DARWIN_NO_LONG_LONG)
extern long long int llrint ( double );
extern long long int llrintf ( float );
extern long long int llrintl ( long double );
extern long long int llround ( double );
extern long long int llroundf ( float );
extern long long int llroundl ( long double );
#endif
__MP__END_DECLS
/*
* If the GCC <math.h> header exists, then tell it: (1) to include the
* next <math.h>, which should be from the system; and (2) to not use
* it's <math.h> yet, because it basically wraps <cmath> and we need
* to keep everything herein focused on just <math.h>. If the user
* wants <cmath>, they should #include that specific header.
*/
#undef L_GLIBCXX_MATH_H
#ifndef _GLIBCXX_MATH_H
#define L_GLIBCXX_MATH_H 1
#define _GLIBCXX_MATH_H 1
#endif
#undef L_GLIBCXX_INCLUDE_NEXT_C_HEADERS
#ifndef _GLIBCXX_INCLUDE_NEXT_C_HEADERS
#define L_GLIBCXX_INCLUDE_NEXT_C_HEADERS 1
#define _GLIBCXX_INCLUDE_NEXT_C_HEADERS 1
#endif
#endif /* __MP_LEGACY_SUPPORT_LLROUND__ */
/*
* Include the next math.h, which might be from the primary system or
* it might be within GCC's c or c++ (yup!) headers
*/
#include_next <math.h>
#if __MP_LEGACY_SUPPORT_COSSIN__
/* Following is borrowed from math.h on macOS 10.9+ */
/* __sincos and __sincosf were introduced in OSX 10.9 and iOS 7.0. When
targeting an older system, we simply split them up into discrete calls
to sin( ) and cos( ). */
__MP__BEGIN_DECLS
extern void __sincosf(float __x, float *__sinp, float *__cosp);
extern void __sincos(double __x, double *__sinp, double *__cosp);
__MP__END_DECLS
#endif /* __MP_LEGACY_SUPPORT_COSSIN__ */
#if __MP_LEGACY_SUPPORT_LLROUND__
#ifdef L_GLIBCXX_MATH_H
#undef L_GLIBCXX_MATH_H
#undef _GLIBCXX_MATH_H
#endif
#ifdef L_GLIBCXX_INCLUDE_NEXT_C_HEADERS
#undef L_GLIBCXX_INCLUDE_NEXT_C_HEADERS
#undef _GLIBCXX_INCLUDE_NEXT_C_HEADERS
#endif
#endif /* __MP_LEGACY_SUPPORT_LLROUND__ */
#endif /* _MACPORTS_MATH_H_ */