libquadmath/quadmath.h

   1 /* GCC Quad-Precision Math Library
   2    Copyright (C) 2010-2019 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 #if (!defined(_ARCH_PPC)) || defined(__LONG_DOUBLE_IEEE128__)
  33 typedef _Complex float __attribute__((mode(TC))) __complex128;
  34 #else
  35 typedef _Complex float __attribute__((mode(KC))) __complex128;
  36 #endif
  37
  38 #ifdef __cplusplus
  39 # define __quadmath_throw throw ()
  40 # define __quadmath_nth(fct) fct throw ()
  41 #else
  42 # define __quadmath_throw __attribute__((__nothrow__))
  43 # define __quadmath_nth(fct) __attribute__((__nothrow__)) fct
  44 #endif
  45
  46 /* Prototypes for real functions */
  47 extern __float128 acosq (__float128) __quadmath_throw;
  48 extern __float128 acoshq (__float128) __quadmath_throw;
  49 extern __float128 asinq (__float128) __quadmath_throw;
  50 extern __float128 asinhq (__float128) __quadmath_throw;
  51 extern __float128 atanq (__float128) __quadmath_throw;
  52 extern __float128 atanhq (__float128) __quadmath_throw;
  53 extern __float128 atan2q (__float128, __float128) __quadmath_throw;
  54 extern __float128 cbrtq (__float128) __quadmath_throw;
  55 extern __float128 ceilq (__float128) __quadmath_throw;
  56 extern __float128 copysignq (__float128, __float128) __quadmath_throw;
  57 extern __float128 coshq (__float128) __quadmath_throw;
  58 extern __float128 cosq (__float128) __quadmath_throw;
  59 extern __float128 erfq (__float128) __quadmath_throw;
  60 extern __float128 erfcq (__float128) __quadmath_throw;
  61 extern __float128 exp2q (__float128) __quadmath_throw;
  62 extern __float128 expq (__float128) __quadmath_throw;
  63 extern __float128 expm1q (__float128) __quadmath_throw;
  64 extern __float128 fabsq (__float128) __quadmath_throw;
  65 extern __float128 fdimq (__float128, __float128) __quadmath_throw;
  66 extern int finiteq (__float128) __quadmath_throw;
  67 extern __float128 floorq (__float128) __quadmath_throw;
  68 extern __float128 fmaq (__float128, __float128, __float128) __quadmath_throw;
  69 extern __float128 fmaxq (__float128, __float128) __quadmath_throw;
  70 extern __float128 fminq (__float128, __float128) __quadmath_throw;
  71 extern __float128 fmodq (__float128, __float128) __quadmath_throw;
  72 extern __float128 frexpq (__float128, int *) __quadmath_throw;
  73 extern __float128 hypotq (__float128, __float128) __quadmath_throw;
  74 extern int isinfq (__float128) __quadmath_throw;
  75 extern int ilogbq (__float128) __quadmath_throw;
  76 extern int isnanq (__float128) __quadmath_throw;
  77 extern int issignalingq (__float128) __quadmath_throw;
  78 extern __float128 j0q (__float128) __quadmath_throw;
  79 extern __float128 j1q (__float128) __quadmath_throw;
  80 extern __float128 jnq (int, __float128) __quadmath_throw;
  81 extern __float128 ldexpq (__float128, int) __quadmath_throw;
  82 extern __float128 lgammaq (__float128) __quadmath_throw;
  83 extern long long int llrintq (__float128) __quadmath_throw;
  84 extern long long int llroundq (__float128) __quadmath_throw;
  85 extern __float128 logbq (__float128) __quadmath_throw;
  86 extern __float128 logq (__float128) __quadmath_throw;
  87 extern __float128 log10q (__float128) __quadmath_throw;
  88 extern __float128 log2q (__float128) __quadmath_throw;
  89 extern __float128 log1pq (__float128) __quadmath_throw;
  90 extern long int lrintq (__float128) __quadmath_throw;
  91 extern long int lroundq (__float128) __quadmath_throw;
  92 extern __float128 modfq (__float128, __float128 *) __quadmath_throw;
  93 extern __float128 nanq (const char *) __quadmath_throw;
  94 extern __float128 nearbyintq (__float128) __quadmath_throw;
  95 extern __float128 nextafterq (__float128, __float128) __quadmath_throw;
  96 extern __float128 powq (__float128, __float128) __quadmath_throw;
  97 extern __float128 remainderq (__float128, __float128) __quadmath_throw;
  98 extern __float128 remquoq (__float128, __float128, int *) __quadmath_throw;
  99 extern __float128 rintq (__float128) __quadmath_throw;
 100 extern __float128 roundq (__float128) __quadmath_throw;
 101 extern __float128 scalblnq (__float128, long int) __quadmath_throw;
 102 extern __float128 scalbnq (__float128, int) __quadmath_throw;
 103 extern int signbitq (__float128) __quadmath_throw;
 104 extern void sincosq (__float128, __float128 *, __float128 *) __quadmath_throw;
 105 extern __float128 sinhq (__float128) __quadmath_throw;
 106 extern __float128 sinq (__float128) __quadmath_throw;
 107 extern __float128 sqrtq (__float128) __quadmath_throw;
 108 extern __float128 tanq (__float128) __quadmath_throw;
 109 extern __float128 tanhq (__float128) __quadmath_throw;
 110 extern __float128 tgammaq (__float128) __quadmath_throw;
 111 extern __float128 truncq (__float128) __quadmath_throw;
 112 extern __float128 y0q (__float128) __quadmath_throw;
 113 extern __float128 y1q (__float128) __quadmath_throw;
 114 extern __float128 ynq (int, __float128) __quadmath_throw;
 115
 116
 117 /* Prototypes for complex functions */
 118 extern __float128 cabsq (__complex128) __quadmath_throw;
 119 extern __float128 cargq (__complex128) __quadmath_throw;
 120 extern __float128 cimagq (__complex128) __quadmath_throw;
 121 extern __float128 crealq (__complex128) __quadmath_throw;
 122 extern __complex128 cacosq (__complex128) __quadmath_throw;
 123 extern __complex128 cacoshq (__complex128) __quadmath_throw;
 124 extern __complex128 casinq (__complex128) __quadmath_throw;
 125 extern __complex128 casinhq (__complex128) __quadmath_throw;
 126 extern __complex128 catanq (__complex128) __quadmath_throw;
 127 extern __complex128 catanhq (__complex128) __quadmath_throw;
 128 extern __complex128 ccosq (__complex128) __quadmath_throw;
 129 extern __complex128 ccoshq (__complex128) __quadmath_throw;
 130 extern __complex128 cexpq (__complex128) __quadmath_throw;
 131 extern __complex128 cexpiq (__float128) __quadmath_throw;
 132 extern __complex128 clogq (__complex128) __quadmath_throw;
 133 extern __complex128 clog10q (__complex128) __quadmath_throw;
 134 extern __complex128 conjq (__complex128) __quadmath_throw;
 135 extern __complex128 cpowq (__complex128, __complex128) __quadmath_throw;
 136 extern __complex128 cprojq (__complex128) __quadmath_throw;
 137 extern __complex128 csinq (__complex128) __quadmath_throw;
 138 extern __complex128 csinhq (__complex128) __quadmath_throw;
 139 extern __complex128 csqrtq (__complex128) __quadmath_throw;
 140 extern __complex128 ctanq (__complex128) __quadmath_throw;
 141 extern __complex128 ctanhq (__complex128) __quadmath_throw;
 142
 143
 144 /* Prototypes for string <-> __float128 conversion functions */
 145 extern __float128 strtoflt128 (const char *, char **) __quadmath_throw;
 146 extern int quadmath_snprintf (char *str, size_t size,
 147                               const char *format, ...) __quadmath_throw;
 148
 149
 150 /* Macros */
 151 #define FLT128_MAX 1.18973149535723176508575932662800702e4932Q
 152 #define FLT128_MIN 3.36210314311209350626267781732175260e-4932Q
 153 #define FLT128_EPSILON 1.92592994438723585305597794258492732e-34Q
 154 #define FLT128_DENORM_MIN 6.475175119438025110924438958227646552e-4966Q
 155 #define FLT128_MANT_DIG 113
 156 #define FLT128_MIN_EXP (-16381)
 157 #define FLT128_MAX_EXP 16384
 158 #define FLT128_DIG 33
 159 #define FLT128_MIN_10_EXP (-4931)
 160 #define FLT128_MAX_10_EXP 4932
 161
 162
 163 #define HUGE_VALQ __builtin_huge_valq()
 164 /* The following alternative is valid, but brings the warning:
 165    (floating constant exceeds range of ‘__float128’)  */
 166 /* #define HUGE_VALQ (__extension__ 0x1.0p32767Q) */
 167
 168 #define M_Eq            2.718281828459045235360287471352662498Q  /* e */
 169 #define M_LOG2Eq        1.442695040888963407359924681001892137Q  /* log_2 e */
 170 #define M_LOG10Eq       0.434294481903251827651128918916605082Q  /* log_10 e */
 171 #define M_LN2q          0.693147180559945309417232121458176568Q  /* log_e 2 */
 172 #define M_LN10q         2.302585092994045684017991454684364208Q  /* log_e 10 */
 173 #define M_PIq           3.141592653589793238462643383279502884Q  /* pi */
 174 #define M_PI_2q         1.570796326794896619231321691639751442Q  /* pi/2 */
 175 #define M_PI_4q         0.785398163397448309615660845819875721Q  /* pi/4 */
 176 #define M_1_PIq         0.318309886183790671537767526745028724Q  /* 1/pi */
 177 #define M_2_PIq         0.636619772367581343075535053490057448Q  /* 2/pi */
 178 #define M_2_SQRTPIq     1.128379167095512573896158903121545172Q  /* 2/sqrt(pi) */
 179 #define M_SQRT2q        1.414213562373095048801688724209698079Q  /* sqrt(2) */
 180 #define M_SQRT1_2q      0.707106781186547524400844362104849039Q  /* 1/sqrt(2) */
 181
 182 #define __quadmath_extern_inline \
 183   extern inline __attribute__ ((__gnu_inline__))
 184
 185 __quadmath_extern_inline __float128
 186 __quadmath_nth (cimagq (__complex128 __z))
 187 {
 188   return __imag__ __z;
 189 }
 190
 191 __quadmath_extern_inline __float128
 192 __quadmath_nth (crealq (__complex128 __z))
 193 {
 194   return __real__ __z;
 195 }
 196
 197 __quadmath_extern_inline __complex128
 198 __quadmath_nth (conjq (__complex128 __z))
 199 {
 200   return __extension__ ~__z;
 201 }
 202
 203 #ifdef __cplusplus
 204 }
 205 #endif
 206
 207 #endif