Skip to content
This repository

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
branch: uebayasi_xip
Fetching contributors…

Cannot retrieve contributors at this time

file 192 lines (172 sloc) 7.198 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Matt Thomas <matt@3am-software.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef _TGMATH_H_
#define _TGMATH_H_

#include <math.h>
#include <complex.h>

/*
* C99 Type-generic math (7.22)
*/
#ifdef __GNUC__
#define __TG_CHOOSE(p, a, b) __builtin_choose_expr((p), (a), (b))
#define __TG_IS_EQUIV_TYPE_P(v, t) \
__builtin_types_compatible_p(__typeof__(v), t)
#else
#error how does this compler do type-generic macros?
#endif

#define __TG_IS_FCOMPLEX_P(t) __TG_IS_EQUIV_TYPE_P(t, float complex)
#define __TG_IS_DCOMPLEX_P(t) __TG_IS_EQUIV_TYPE_P(t, double complex)
#define __TG_IS_LCOMPLEX_P(t) __TG_IS_EQUIV_TYPE_P(t, long double complex)
#define __TG_IS_FLOAT_P(t) __TG_IS_EQUIV_TYPE_P(t, float)
#define __TG_IS_LDOUBLE_P(t) __TG_IS_EQUIV_TYPE_P(t, long double)
#define __TG_IS_FREAL_P(t) (__TG_IS_FLOAT_P(t) || __TG_IS_FCOMPLEX_P(t))
#define __TG_IS_LREAL_P(t) (__TG_IS_LDOUBLE_P(t) || __TG_IS_LCOMPLEX_P(t))

#define __TG_IS_COMPLEX_P(t) \
(__TG_IS_FCOMPLEX_P(t) \
|| __TG_IS_DCOMPLEX_P(t) \
|| __TG_IS_LCOMPLEX_P(t))

#define __TG_GFN1(fn, a, ftype, ltype) \
__TG_CHOOSE(__TG_IS_##ftype##_P(a), \
fn##f(a), \
__TG_CHOOSE(__TG_IS_##ltype##_P(a), \
fn##l(a), \
fn(a)))

#define __TG_GFN1x(fn, a, b, ftype, ltype) \
__TG_CHOOSE(__TG_IS_##ftype##_P(a), \
fn##f((a), (b)), \
__TG_CHOOSE(__TG_IS_##ltype##_P(a), \
fn##l((a), (b)), \
fn((a), (b))))

#define __TG_GFN2(fn, a, b, ftype, ltype) \
__TG_CHOOSE(__TG_IS_##ftype##_P(a) \
&& __TG_IS_##ftype##_P(b), \
fn##f((a), (b)), \
__TG_CHOOSE(__TG_IS_##ltype##_P(a) \
|| __TG_IS_##ltype##_P(b), \
fn##l((a), (b)), \
fn((a), (b))))

#define __TG_GFN2x(fn, a, b, c, ftype, ltype) \
__TG_CHOOSE(__TG_IS_##ftype##_P(a) \
&& __TG_IS_##ftype##_P(b), \
fn##f((a), (b), (c)), \
__TG_CHOOSE(__TG_IS_##ltype##_P(a) \
|| __TG_IS_##ltype##_P(b), \
fn##l((a), (b), (c)), \
fn((a), (b), (c))))

#define __TG_GFN3(fn, a, b, c, ftype, ltype) \
__TG_CHOOSE(__TG_IS_##ftype##_P(a) \
&& __TG_IS_##ftype##_P(b) \
&& __TG_IS_##ftype##_P(c), \
fn##f((a), (b), (c)), \
__TG_CHOOSE(__TG_IS_##ltype##_P(a) \
|| __TG_IS_##ltype##_P(b) \
|| __TG_IS_##ltype##_P(c), \
fn##l((a), (b), (c)), \
fn((a), (b), (c))))


#define __TG_CFN1(cfn, a) __TG_GFN1(cfn, a, FREAL, LREAL)
#define __TG_CFN2(cfn, a, b) __TG_GFN2(cfn, a, b, FREAL, LREAL)

#define __TG_FN1(fn, a) __TG_GFN1(fn, a, FLOAT, LDOUBLE)
#define __TG_FN1x(fn, a, b) __TG_GFN1x(fn, a, b, FLOAT, LDOUBLE)
#define __TG_FN2(fn, a, b) __TG_GFN2(fn, a, b, FLOAT, LDOUBLE)
#define __TG_FN2x(fn, a, b, c) __TG_GFN2x(fn, a, b, c, FLOAT, LDOUBLE)
#define __TG_FN3(fn, a, b, c) __TG_GFN3(fn, a, b, c, FLOAT, LDOUBLE)

#define __TG_COMPLEX(a, fn) \
__TG_CHOOSE(__TG_IS_COMPLEX_P(a), \
__TG_CFN1(c##fn, (a)), \
__TG_FN1(fn, (a)))

#define __TG_COMPLEX1(a, cfn, fn) \
__TG_CHOOSE(__TG_IS_COMPLEX_P(a), \
__TG_CFN1(cfn, (a)), \
__TG_FN1(fn, (a)))

#define __TG_COMPLEX2(a, b, fn) \
__TG_CHOOSE(__TG_IS_COMPLEX_P(a) \
|| __TG_IS_COMPLEX_P(b), \
__TG_CFN2(c##fn, (a), (b)), \
__TG_FN2(fn, (a), (b)))

#define acos(a) __TG_COMPLEX((a), acos)
#define asin(a) __TG_COMPLEX((a), asin)
#define atan(a) __TG_COMPLEX((a), atan)
#define acosh(a) __TG_COMPLEX((a), acosh)
#define asinh(a) __TG_COMPLEX((a), asinh)
#define atanh(a) __TG_COMPLEX((a), atanh)
#define cos(a) __TG_COMPLEX((a), cos)
#define sin(a) __TG_COMPLEX((a), sin)
#define tan(a) __TG_COMPLEX((a), tan)
#define cosh(a) __TG_COMPLEX((a), cosh)
#define sinh(a) __TG_COMPLEX((a), sinh)
#define tanh(a) __TG_COMPLEX((a), tanh)
#define exp(a) __TG_COMPLEX((a), exp)
#define log(a) __TG_COMPLEX((a), log)
#define pow(a,b) __TG_COMPLEX2((a), (b), pow)
#define sqrt(a) __TG_COMPLEX((a), sqrt)
#define fabs(a) __TG_COMPLEX1((a), cabs, fabs)

#define atan2(a,b) __TG_FN2(atan2, (a), (b))
#define cbrt(a) __TG_FN1(cbrt, (a))
#define ceil(a) __TG_FN1(ceil, (a))
#define copysign(a,b) __TG_FN2(copysign, (a), (b))
#define erf(a) __TG_FN1(erf, (a))
#define erfc(a) __TG_FN1(erfc, (a))
#define exp2(a) __TG_FN1(exp2, (a))
#define expm1(a) __TG_FN1(expm1, (a))
#define fdim(a,b) __TG_FN2(fdim, (a), (b))
#define floor(a) __TG_FN1(floor, (a))
#define fma(a,b,c) __TG_FN3(fma, (a), (b), (c))
#define fmax(a,b) __TG_FN2(fmax, (a), (b))
#define fmin(a,b) __TG_FN2(fmin, (a), (b))
#define fmod(a,b) __TG_FN2(fmod, (a), (b))
#define frexp(a,b) __TG_FN1x(frexp, (a), (b))
#define hypot(a,b) __TG_FN2(hypot, (a), (b))
#define ilogb(a) __TG_FN1(ilogb, (a))
#define ldexp(a,b) __TG_FN1x(ldexp, (a), (b))
#define lgamma(a) __TG_FN1(lgamma, (a))
#define llrint(a) __TG_FN1(llrint, (a))
#define llround(a) __TG_FN1(llround, (a))
#define log10(a) __TG_FN1(log10, (a))
#define log1p(a) __TG_FN1(log1p, (a))
#define log2(a) __TG_FN1(log2, (a))
#define logb(a) __TG_FN1(logb, (a))
#define lrint(a) __TG_FN1(lrint, (a))
#define lround(a) __TG_FN1(lround, (a))
#define nearbyint(a) __TG_FN1(nearbyint, (a))
#define nextafter(a,b) __TG_FN2(nextafter, (a), (b))
#define nexttoward(a,b) __TG_FN2(nexttoward, (a), (b))
#define remainder(a,b) __TG_FN2(remainder, (a), (b))
#define remquo(a,b,c) __TG_FN2x(remquo, (a), (b), (c))
#define rint(a) __TG_FN1(rint, (a))
#define round(a) __TG_FN1(round, (a))
#define scalbn(a,b) __TG_FN1x(scalbn, (a), (b))
#define scalb1n(a,b) __TG_FN1x(scalb1n, (a), (b))
#define tgamma(a) __TG_FN1(tgamma, (a))
#define trunc(a) __TG_FN1(trunc, (a))

#define carg(a) __TG_CFN1(carg, (a))
#define cimag(a) __TG_CFN1(cimag, (a))
#define conj(a) __TG_CFN1(conj, (a))
#define cproj(a) __TG_CFN1(cproj, (a))
#define creal(a) __TG_CFN1(creal, (a))

#endif /* !_TGMATH_H_ */
Something went wrong with that request. Please try again.