libquadmath/quadmath.h

   1 /* GCC Quad-Precision Math Library
   2    Copyright (C) 2010, 2011 Free Software Foundation, Inc.
   3    Written by Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
   4
   5 This file is part of the libquadmath library.
   6 Libquadmath is free software; you can redistribute it and/or
   7 modify it under the terms of the GNU Library General Public
   8 License as published by the Free Software Foundation; either
   9 version 2 of the License, or (at your option) any later version.
  10
  11 Libquadmath is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 Library General Public License for more details.
  15
  16 You should have received a copy of the GNU Library General Public
  17 License along with libquadmath; see the file COPYING.LIB.  If
  18 not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
  19 Boston, MA 02110-1301, USA.  */
  20
  21 #ifndef QUADMATH_H
  22 #define QUADMATH_H
  23
  24 #include <stdlib.h>
  25
  26 #ifdef __cplusplus
  27 extern "C" {
  28 #endif
  29
  30 /* Define the complex type corresponding to __float128
  31    ("_Complex __float128" is not allowed) */
  32 typedef _Complex float __attribute__((mode(TC))) __complex128;
  33
  34 #ifdef __cplusplus
  35 # define __quadmath_throw throw ()
  36 # define __quadmath_nth(fct) fct throw ()
  37 #else
  38 # define __quadmath_throw __attribute__((__nothrow__))
  39 # define __quadmath_nth(fct) __attribute__((__nothrow__)) fct
  40 #endif
  41
  42 /* Prototypes for real functions */
  43 extern __float128 acosq (__float128) __quadmath_throw;
  44 extern __float128 acoshq (__float128) __quadmath_throw;
  45 extern __float128 asinq (__float128) __quadmath_throw;
  46 extern __float128 asinhq (__float128) __quadmath_throw;
  47 extern __float128 atanq (__float128) __quadmath_throw;
  48 extern __float128 atanhq (__float128) __quadmath_throw;
  49 extern __float128 atan2q (__float128, __float128) __quadmath_throw;
  50 extern __float128 cbrtq (__float128) __quadmath_throw;
  51 extern __float128 ceilq (__float128) __quadmath_throw;
  52 extern __float128 copysignq (__float128, __float128) __quadmath_throw;
  53 extern __float128 coshq (__float128) __quadmath_throw;
  54 extern __float128 cosq (__float128) __quadmath_throw;
  55 extern __float128 erfq (__float128) __quadmath_throw;
  56 extern __float128 erfcq (__float128) __quadmath_throw;
  57 extern __float128 expq (__float128) __quadmath_throw;
  58 extern __float128 expm1q (__float128) __quadmath_throw;
  59 extern __float128 fabsq (__float128) __quadmath_throw;
  60 extern __float128 fdimq (__float128, __float128) __quadmath_throw;
  61 extern int finiteq (__float128) __quadmath_throw;
  62 extern __float128 floorq (__float128) __quadmath_throw;
  63 extern __float128 fmaq (__float128, __float128, __float128) __quadmath_throw;
  64 extern __float128 fmaxq (__float128, __float128) __quadmath_throw;
  65 extern __float128 fminq (__float128, __float128) __quadmath_throw;
  66 extern __float128 fmodq (__float128, __float128) __quadmath_throw;
  67 extern __float128 frexpq (__float128, int *) __quadmath_throw;
  68 extern __float128 hypotq (__float128, __float128) __quadmath_throw;
  69 extern int isinfq (__float128) __quadmath_throw;
  70 extern int ilogbq (__float128) __quadmath_throw;
  71 extern int isnanq (__float128) __quadmath_throw;
  72 extern __float128 j0q (__float128) __quadmath_throw;
  73 extern __float128 j1q (__float128) __quadmath_throw;
  74 extern __float128 jnq (int, __float128) __quadmath_throw;
  75 extern __float128 ldexpq (__float128, int) __quadmath_throw;
  76 extern __float128 lgammaq (__float128) __quadmath_throw;
  77 extern long long int llrintq (__float128) __quadmath_throw;
  78 extern long long int llroundq (__float128) __quadmath_throw;
  79 extern __float128 logq (__float128) __quadmath_throw;
  80 extern __float128 log10q (__float128) __quadmath_throw;
  81 extern __float128 log2q (__float128) __quadmath_throw;
  82 extern __float128 log1pq (__float128) __quadmath_throw;
  83 extern long int lrintq (__float128) __quadmath_throw;
  84 extern long int lroundq (__float128) __quadmath_throw;
  85 extern __float128 modfq (__float128, __float128 *) __quadmath_throw;
  86 extern __float128 nanq (const char *) __quadmath_throw;
  87 extern __float128 nearbyintq (__float128) __quadmath_throw;
  88 extern __float128 nextafterq (__float128, __float128) __quadmath_throw;
  89 extern __float128 powq (__float128, __float128) __quadmath_throw;
  90 extern __float128 remainderq (__float128, __float128) __quadmath_throw;
  91 extern __float128 remquoq (__float128, __float128, int *) __quadmath_throw;
  92 extern __float128 rintq (__float128) __quadmath_throw;
  93 extern __float128 roundq (__float128) __quadmath_throw;
  94 extern __float128 scalblnq (__float128, long int) __quadmath_throw;
  95 extern __float128 scalbnq (__float128, int) __quadmath_throw;
  96 extern int signbitq (__float128) __quadmath_throw;
  97 extern void sincosq (__float128, __float128 *, __float128 *) __quadmath_throw;
  98 extern __float128 sinhq (__float128) __quadmath_throw;
  99 extern __float128 sinq (__float128) __quadmath_throw;
 100 extern __float128 sqrtq (__float128) __quadmath_throw;
 101 extern __float128 tanq (__float128) __quadmath_throw;
 102 extern __float128 tanhq (__float128) __quadmath_throw;
 103 extern __float128 tgammaq (__float128) __quadmath_throw;
 104 extern __float128 truncq (__float128) __quadmath_throw;
 105 extern __float128 y0q (__float128) __quadmath_throw;
 106 extern __float128 y1q (__float128) __quadmath_throw;
 107 extern __float128 ynq (int, __float128) __quadmath_throw;
 108
 109
 110 /* Prototypes for complex functions */
 111 extern __float128 cabsq (__complex128) __quadmath_throw;
 112 extern __float128 cargq (__complex128) __quadmath_throw;
 113 extern __float128 cimagq (__complex128) __quadmath_throw;
 114 extern __float128 crealq (__complex128) __quadmath_throw;
 115 extern __complex128 cacosq (__complex128) __quadmath_throw;
 116 extern __complex128 cacoshq (__complex128) __quadmath_throw;
 117 extern __complex128 casinq (__complex128) __quadmath_throw;
 118 extern __complex128 casinhq (__complex128) __quadmath_throw;
 119 extern __complex128 catanq (__complex128) __quadmath_throw;
 120 extern __complex128 catanhq (__complex128) __quadmath_throw;
 121 extern __complex128 ccosq (__complex128) __quadmath_throw;
 122 extern __complex128 ccoshq (__complex128) __quadmath_throw;
 123 extern __complex128 cexpq (__complex128) __quadmath_throw;
 124 extern __complex128 cexpiq (__float128) __quadmath_throw;
 125 extern __complex128 clogq (__complex128) __quadmath_throw;
 126 extern __complex128 clog10q (__complex128) __quadmath_throw;
 127 extern __complex128 conjq (__complex128) __quadmath_throw;
 128 extern __complex128 cpowq (__complex128, __complex128) __quadmath_throw;
 129 extern __complex128 cprojq (__complex128) __quadmath_throw;
 130 extern __complex128 csinq (__complex128) __quadmath_throw;
 131 extern __complex128 csinhq (__complex128) __quadmath_throw;
 132 extern __complex128 csqrtq (__complex128) __quadmath_throw;
 133 extern __complex128 ctanq (__complex128) __quadmath_throw;
 134 extern __complex128 ctanhq (__complex128) __quadmath_throw;
 135
 136
 137 /* Prototypes for string <-> __float128 conversion functions */
 138 extern __float128 strtoflt128 (const char *, char **) __quadmath_throw;
 139 extern int quadmath_snprintf (char *str, size_t size,
 140                               const char *format, ...) __quadmath_throw;
 141
 142
 143 /* Macros */
 144 #define FLT128_MAX 1.18973149535723176508575932662800702e4932Q
 145 #define FLT128_MIN 3.36210314311209350626267781732175260e-4932Q
 146 #define FLT128_EPSILON 1.92592994438723585305597794258492732e-34Q
 147 #define FLT128_DENORM_MIN 6.475175119438025110924438958227646552e-4966Q
 148 #define FLT128_MANT_DIG 113
 149 #define FLT128_MIN_EXP (-16381)
 150 #define FLT128_MAX_EXP 16384
 151 #define FLT128_DIG 33
 152 #define FLT128_MIN_10_EXP (-4931)
 153 #define FLT128_MAX_10_EXP 4932
 154
 155
 156 #define HUGE_VALQ __builtin_huge_valq()
 157 /* The following alternative is valid, but brings the warning:
 158    (floating constant exceeds range of ‘__float128’)  */
 159 /* #define HUGE_VALQ (__extension__ 0x1.0p32767Q) */
 160
 161 #define M_Eq            2.7182818284590452353602874713526625Q  /* e */
 162 #define M_LOG2Eq        1.4426950408889634073599246810018921Q  /* log_2 e */
 163 #define M_LOG10Eq       0.4342944819032518276511289189166051Q  /* log_10 e */
 164 #define M_LN2q          0.6931471805599453094172321214581766Q  /* log_e 2 */
 165 #define M_LN10q         2.3025850929940456840179914546843642Q  /* log_e 10 */
 166 #define M_PIq           3.1415926535897932384626433832795029Q  /* pi */
 167 #define M_PI_2q         1.5707963267948966192313216916397514Q  /* pi/2 */
 168 #define M_PI_4q         0.7853981633974483096156608458198757Q  /* pi/4 */
 169 #define M_1_PIq         0.3183098861837906715377675267450287Q  /* 1/pi */
 170 #define M_2_PIq         0.6366197723675813430755350534900574Q  /* 2/pi */
 171 #define M_2_SQRTPIq     1.1283791670955125738961589031215452Q  /* 2/sqrt(pi) */
 172 #define M_SQRT2q        1.4142135623730950488016887242096981Q  /* sqrt(2) */
 173 #define M_SQRT1_2q      0.7071067811865475244008443621048490Q  /* 1/sqrt(2) */
 174
 175 #define __quadmath_extern_inline \
 176   extern inline __attribute__ ((__gnu_inline__))
 177
 178 __quadmath_extern_inline __float128
 179 __quadmath_nth (cimagq (__complex128 __z))
 180 {
 181   return __imag__ __z;
 182 }
 183
 184 __quadmath_extern_inline __float128
 185 __quadmath_nth (crealq (__complex128 __z))
 186 {
 187   return __real__ __z;
 188 }
 189
 190 __quadmath_extern_inline __complex128
 191 __quadmath_nth (conjq (__complex128 __z))
 192 {
 193   return __extension__ ~__z;
 194 }
 195
 196 #ifdef __cplusplus
 197 }
 198 #endif
 199
 200 #endif