tgmath.h revision 134736
1160814Ssimon/*- 2160814Ssimon * Copyright (c) 2004 Stefan Farfeleder. 3160814Ssimon * All rights reserved. 4160814Ssimon * 5160814Ssimon * Redistribution and use in source and binary forms, with or without 6160814Ssimon * modification, are permitted provided that the following conditions 7160814Ssimon * are met: 8160814Ssimon * 1. Redistributions of source code must retain the above copyright 9160814Ssimon * notice, this list of conditions and the following disclaimer. 10280304Sjkim * 2. Redistributions in binary form must reproduce the above copyright 11160814Ssimon * notice, this list of conditions and the following disclaimer in the 12160814Ssimon * documentation and/or other materials provided with the distribution. 13160814Ssimon * 14160814Ssimon * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15160814Ssimon * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16160814Ssimon * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17160814Ssimon * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18160814Ssimon * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19160814Ssimon * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20160814Ssimon * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21160814Ssimon * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22160814Ssimon * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23160814Ssimon * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24160814Ssimon * SUCH DAMAGE. 25160814Ssimon * 26160814Ssimon * $FreeBSD: head/include/tgmath.h 134736 2004-09-03 23:44:09Z stefanf $ 27160814Ssimon */ 28160814Ssimon 29160814Ssimon#ifndef _TGMATH_H_ 30160814Ssimon#define _TGMATH_H_ 31160814Ssimon 32160814Ssimon#include <complex.h> 33160814Ssimon#include <math.h> 34160814Ssimon 35160814Ssimon/* 36160814Ssimon * This implementation of <tgmath.h> requires two implementation-dependent 37160814Ssimon * macros to be defined: 38160814Ssimon * __tg_impl_simple(x, y, z, fn, fnf, fnl, ...) 39160814Ssimon * Invokes fnl() if the corresponding real type of x, y or z is long 40160814Ssimon * double, fn() if it is double or any has an integer type, and fnf() 41160814Ssimon * otherwise. 42160814Ssimon * __tg_impl_full(x, y, z, fn, fnf, fnl, cfn, cfnf, cfnl, ...) 43160814Ssimon * Invokes [c]fnl() if the corresponding real type of x, y or z is long 44160814Ssimon * double, [c]fn() if it is double or any has an integer type, and 45160814Ssimon * [c]fnf() otherwise. The function with the 'c' prefix is called if 46160814Ssimon * any of x, y or z is a complex number. 47160814Ssimon * Both macros call the chosen function with all additional arguments passed 48160814Ssimon * to them, as given by __VA_ARGS__. 49160814Ssimon * 50160814Ssimon * Note that these macros cannot be implemented with C's ?: operator, 51160814Ssimon * because the return type of the whole expression would incorrectly be long 52160814Ssimon * double complex regardless of the argument types. 53160814Ssimon */ 54160814Ssimon 55160814Ssimon#if __GNUC_PREREQ__(3, 1) 56280304Sjkim#define __tg_type(e, t) __builtin_types_compatible_p(__typeof__(e), t) 57280304Sjkim#define __tg_type3(e1, e2, e3, t) \ 58160814Ssimon (__tg_type(e1, t) || __tg_type(e2, t) || __tg_type(e3, t)) 59160814Ssimon#define __tg_type_corr(e1, e2, e3, t) \ 60160814Ssimon (__tg_type3(e1, e2, e3, t) || __tg_type3(e1, e2, e3, t _Complex)) 61160814Ssimon#define __tg_integer(e1, e2, e3) \ 62160814Ssimon (((__typeof__(e1))1.5 == 1) || ((__typeof__(e2))1.5 == 1) || \ 63160814Ssimon ((__typeof__(e3))1.5 == 1)) 64160814Ssimon#define __tg_is_complex(e1, e2, e3) \ 65160814Ssimon (__tg_type3(e1, e2, e3, float _Complex) || \ 66160814Ssimon __tg_type3(e1, e2, e3, double _Complex) || \ 67160814Ssimon __tg_type3(e1, e2, e3, long double _Complex)) || \ 68160814Ssimon __tg_type3(e1, e2, e3, __typeof__(_Complex_I)) 69280304Sjkim 70280304Sjkim#define __tg_impl_simple(x, y, z, fn, fnf, fnl, ...) \ 71160814Ssimon __builtin_choose_expr(__tg_type_corr(x, y, z, long double), \ 72280304Sjkim fnl(__VA_ARGS__), __builtin_choose_expr( \ 73280304Sjkim __tg_type_corr(x, y, z, double) || __tg_integer(x, y, z),\ 74280304Sjkim fn(__VA_ARGS__), fnf(__VA_ARGS__))) 75280304Sjkim 76280304Sjkim#define __tg_impl_full(x, y, z, fn, fnf, fnl, cfn, cfnf, cfnl, ...) \ 77160814Ssimon __builtin_choose_expr(__tg_is_complex(x, y, z), \ 78280304Sjkim __tg_impl_simple(x, y, z, cfn, cfnf, cfnl, __VA_ARGS__), \ 79280304Sjkim __tg_impl_simple(x, y, z, fn, fnf, fnl, __VA_ARGS__)) 80280304Sjkim 81280304Sjkim#else /* __GNUC__ */ 82280304Sjkim#error "<tgmath.h> not implemented for this compiler" 83280304Sjkim#endif /* !__GNUC__ */ 84280304Sjkim 85160814Ssimon/* Macros to save lots of repetition below */ 86160814Ssimon#define __tg_simple(x, fn) \ 87160814Ssimon __tg_impl_simple(x, x, x, fn, fn##f, fn##l, x) 88160814Ssimon#define __tg_simple2(x, y, fn) \ 89280304Sjkim __tg_impl_simple(x, x, y, fn, fn##f, fn##l, x, y) 90280304Sjkim#define __tg_simplev(x, fn, ...) \ 91280304Sjkim __tg_impl_simple(x, x, x, fn, fn##f, fn##l, __VA_ARGS__) 92280304Sjkim#define __tg_full(x, fn) \ 93160814Ssimon __tg_impl_full(x, x, x, fn, fn##f, fn##l, c##fn, c##fn##f, c##fn##l, x) 94160814Ssimon 95280304Sjkim/* 7.22#4 -- These macros expand to real or complex functions, depending on 96280304Sjkim * the type of their arguments. */ 97160814Ssimon#define acos(x) __tg_full(x, acos) 98160814Ssimon#define asin(x) __tg_full(x, asin) 99280304Sjkim#define atan(x) __tg_full(x, atan) 100280304Sjkim#define acosh(x) __tg_full(x, acosh) 101280304Sjkim#define asinh(x) __tg_full(x, asinh) 102160814Ssimon#define atanh(x) __tg_full(x, atanh) 103280304Sjkim#define cos(x) __tg_full(x, cos) 104280304Sjkim#define sin(x) __tg_full(x, sin) 105160814Ssimon#define tan(x) __tg_full(x, tan) 106280304Sjkim#define cosh(x) __tg_full(x, cosh) 107280304Sjkim#define sinh(x) __tg_full(x, sinh) 108160814Ssimon#define tanh(x) __tg_full(x, tanh) 109160814Ssimon#define exp(x) __tg_full(x, exp) 110160814Ssimon#define log(x) __tg_full(x, log) 111280304Sjkim#define pow(x, y) __tg_impl_full(x, x, y, pow, powf, powl, \ 112280304Sjkim cpow, cpowf, cpowl, x, y) 113160814Ssimon#define sqrt(x) __tg_full(x, sqrt) 114280304Sjkim 115280304Sjkim/* "The corresponding type-generic macro for fabs and cabs is fabs." */ 116160814Ssimon#define fabs(x) __tg_impl_full(x, x, x, fabs, fabsf, fabsl, \ 117160814Ssimon cabs, cabsf, cabsl, x) 118280304Sjkim 119280304Sjkim/* 7.22#5 -- These macros are only defined for arguments with real type. */ 120160814Ssimon#define atan2(x, y) __tg_simple2(x, y, atan2) 121280304Sjkim#define cbrt(x) __tg_simple(x, cbrt) 122280304Sjkim#define ceil(x) __tg_simple(x, ceil) 123160814Ssimon#define copysign(x, y) __tg_simple2(x, y, copysign) 124160814Ssimon#define erf(x) __tg_simple(x, erf) 125160814Ssimon#define erfc(x) __tg_simple(x, erfc) 126280304Sjkim#define exp2(x) __tg_simple(x, exp2) 127160814Ssimon#define expm1(x) __tg_simple(x, expm1) 128280304Sjkim#define fdim(x, y) __tg_simple2(x, y, fdim) 129280304Sjkim#define floor(x) __tg_simple(x, floor) 130280304Sjkim#define fma(x, y, z) __tg_impl_simple(x, y, z, fma, fmaf, fmal, x, y, z) 131160814Ssimon#define fmax(x, y) __tg_simple2(x, y, fmax) 132160814Ssimon#define fmin(x, y) __tg_simple2(x, y, fmin) 133280304Sjkim#define fmod(x, y) __tg_simple2(x, y, fmod) 134280304Sjkim#define frexp(x, y) __tg_simplev(x, frexp, x, y) 135280304Sjkim#define hypot(x, y) __tg_simple2(x, y, hypot) 136280304Sjkim#define ilogb(x) __tg_simple(x, ilogb) 137280304Sjkim#define ldexp(x, y) __tg_simplev(x, ldexp, x, y) 138#define lgamma(x) __tg_simple(x, lgamma) 139#define llrint(x) __tg_simple(x, llrint) 140#define llround(x) __tg_simple(x, llround) 141#define log10(x) __tg_simple(x, log10) 142#define log1p(x) __tg_simple(x, log1p) 143#define log2(x) __tg_simple(x, log2) 144#define logb(x) __tg_simple(x, logb) 145#define lrint(x) __tg_simple(x, lrint) 146#define lround(x) __tg_simple(x, lround) 147#define nearbyint(x) __tg_simple(x, nearbyint) 148#define nextafter(x, y) __tg_simple2(x, y, nextafter) 149#define nexttoward(x, y) __tg_simplev(x, nexttoward, x, y) 150#define remainder(x, y) __tg_simple2(x, y, remainder) 151#define remquo(x, y, z) __tg_impl_simple(x, x, y, remquo, remquof, \ 152 remquol, x, y, z) 153#define rint(x) __tg_simple(x, rint) 154#define round(x) __tg_simple(x, round) 155#define scalbn(x, y) __tg_simplev(x, scalbn, x, y) 156#define scalbln(x, y) __tg_simplev(x, scalbln, x, y) 157#define tgamma(x) __tg_simple(x, tgamma) 158#define trunc(x) __tg_simple(x, trunc) 159 160/* 7.22#6 -- These macros always expand to complex functions. */ 161#define carg(x) __tg_simple(x, carg) 162#define cimag(x) __tg_simple(x, cimag) 163#define conj(x) __tg_simple(x, conj) 164#define cproj(x) __tg_simple(x, cproj) 165#define creal(x) __tg_simple(x, creal) 166 167#endif /* !_TGMATH_H_ */ 168