Mercurial > hg > octave-kai > gnulib-hg
annotate lib/math.in.h @ 13055:c7be8484e434
maint: use pragma consistently across replacement headers
Several headers set #pragma GCC system_header prior to checking
any multiple inclusion guards; maintenance is easiest if all
replacement headers follow the same paradigm.
* lib/ctype.in.h (system_header): Hoist for consistent placement.
* lib/dirent.in.h (system_header): Likewise.
* lib/errno.in.h (system_header): Likewise.
* lib/float.in.h (system_header): Likewise.
* lib/getopt.in.h (system_header): Likewise.
* lib/iconv.in.h (system_header): Likewise.
* lib/inttypes.in.h (system_header): Likewise.
* lib/langinfo.in.h (system_header): Likewise.
* lib/locale.in.h (system_header): Likewise.
* lib/math.in.h (system_header): Likewise.
* lib/netdb.in.h (system_header): Likewise.
* lib/netinet_in.in.h (system_header): Likewise.
* lib/pty.in.h (system_header): Likewise.
* lib/sched.in.h (system_header): Likewise.
* lib/se-selinux.in.h (system_header): Likewise.
* lib/search.in.h (system_header): Likewise.
* lib/spawn.in.h (system_header): Likewise.
* lib/stdarg.in.h (system_header): Likewise.
* lib/stdint.in.h (system_header): Likewise.
* lib/string.in.h (system_header): Likewise.
* lib/strings.in.h (system_header): Likewise.
* lib/sys_file.in.h (system_header): Likewise.
* lib/sys_ioctl.in.h (system_header): Likewise.
* lib/sys_socket.in.h (system_header): Likewise.
* lib/sys_times.in.h (system_header): Likewise.
* lib/sys_utsname.in.h (system_header): Likewise.
* lib/sys_wait.in.h (system_header): Likewise.
* lib/sysexits.in.h (system_header): Likewise.
* lib/unistd.in.h (system_header): Likewise.
* lib/wctype.in.h (system_header): Likewise.
Signed-off-by: Eric Blake <eblake@redhat.com>
| author | Eric Blake <eblake@redhat.com> |
|---|---|
| date | Thu, 25 Mar 2010 16:28:02 -0600 |
| parents | 9be4aca41cee |
| children | 2ed0fc659db8 |
| rev | line source |
|---|---|
| 9255 | 1 /* A GNU-like <math.h>. |
| 2 | |
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3 Copyright (C) 2002-2003, 2007-2010 Free Software Foundation, Inc. |
| 9255 | 4 |
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5 This program is free software: you can redistribute it and/or modify |
| 9255 | 6 it under the terms of the GNU General Public License as published by |
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7 the Free Software Foundation; either version 3 of the License, or |
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8 (at your option) any later version. |
| 9255 | 9 |
| 10 This program is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 GNU General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU General Public License | |
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16 along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 9255 | 17 |
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18 #if __GNUC__ >= 3 |
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19 @PRAGMA_SYSTEM_HEADER@ |
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20 #endif |
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21 |
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22 #ifndef _GL_MATH_H |
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23 |
| 9255 | 24 /* The include_next requires a split double-inclusion guard. */ |
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25 #@INCLUDE_NEXT_AS_FIRST_DIRECTIVE@ @NEXT_AS_FIRST_DIRECTIVE_MATH_H@ |
| 9255 | 26 |
| 27 #ifndef _GL_MATH_H | |
| 28 #define _GL_MATH_H | |
| 29 | |
| 30 | |
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31 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ |
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32 |
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33 /* The definition of _GL_ARG_NONNULL is copied here. */ |
| 9255 | 34 |
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35 /* The definition of _GL_WARN_ON_USE is copied here. */ |
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36 |
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37 /* Helper macros to define a portability warning for the |
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38 classification macro FUNC called with VALUE. POSIX declares the |
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39 classification macros with an argument of real-floating (that is, |
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40 one of float, double, or long double). */ |
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41 #define _GL_WARN_REAL_FLOATING_DECL(func) \ |
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42 static inline int \ |
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43 rpl_ ## func ## f (float f) \ |
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44 { \ |
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45 return func (f); \ |
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46 } \ |
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47 static inline int \ |
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48 rpl_ ## func ## d (double d) \ |
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49 { \ |
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50 return func (d); \ |
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51 } \ |
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52 static inline int \ |
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53 rpl_ ## func ## l (long double l) \ |
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54 { \ |
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55 return func (l); \ |
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56 } \ |
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57 _GL_WARN_ON_USE (rpl_ ## func ## f, #func " is unportable - " \ |
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58 "use gnulib module " #func " for portability"); \ |
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59 _GL_WARN_ON_USE (rpl_ ## func ## d, #func " is unportable - " \ |
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60 "use gnulib module " #func " for portability"); \ |
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61 _GL_WARN_ON_USE (rpl_ ## func ## l, #func " is unportable - " \ |
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62 "use gnulib module " #func " for portability") |
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63 #define _GL_WARN_REAL_FLOATING_IMPL(func, value) \ |
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64 (sizeof (value) == sizeof (float) ? rpl_ ## func ## f (value) \ |
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65 : sizeof (value) == sizeof (double) ? rpl_ ## func ## d (value) \ |
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66 : rpl_ ## func ## l (value)) |
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67 |
| 9255 | 68 |
| 9850 | 69 /* POSIX allows platforms that don't support NAN. But all major |
| 70 machines in the past 15 years have supported something close to | |
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71 IEEE NaN, so we define this unconditionally. We also must define |
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72 it on platforms like Solaris 10, where NAN is present but defined |
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73 as a function pointer rather than a floating point constant. */ |
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74 #if !defined NAN || @REPLACE_NAN@ |
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75 # undef NAN |
| 9850 | 76 /* The Compaq (ex-DEC) C 6.4 compiler chokes on the expression 0.0 / 0.0. */ |
| 77 # ifdef __DECC | |
| 78 static float | |
| 79 _NaN () | |
| 80 { | |
| 81 static float zero = 0.0f; | |
| 82 return zero / zero; | |
| 83 } | |
| 84 # define NAN (_NaN()) | |
| 85 # else | |
| 86 # define NAN (0.0f / 0.0f) | |
| 87 # endif | |
| 88 #endif | |
| 89 | |
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90 /* Solaris 10 defines HUGE_VAL, but as a function pointer rather |
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91 than a floating point constant. */ |
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92 #if @REPLACE_HUGE_VAL@ |
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93 # undef HUGE_VAL |
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94 # define HUGE_VAL (1.0 / 0.0) |
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95 #endif |
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96 |
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97 |
| 9255 | 98 /* Write x as |
| 99 x = mantissa * 2^exp | |
| 100 where | |
| 101 If x finite and nonzero: 0.5 <= |mantissa| < 1.0. | |
| 102 If x is zero: mantissa = x, exp = 0. | |
| 103 If x is infinite or NaN: mantissa = x, exp unspecified. | |
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104 Store exp in *EXPPTR and return mantissa. */ |
| 9255 | 105 #if @GNULIB_FREXP@ |
| 106 # if @REPLACE_FREXP@ | |
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107 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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108 # define frexp rpl_frexp |
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109 # endif |
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110 _GL_FUNCDECL_RPL (frexp, double, (double x, int *expptr) _GL_ARG_NONNULL ((2))); |
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111 _GL_CXXALIAS_RPL (frexp, double, (double x, int *expptr)); |
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112 # else |
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113 _GL_CXXALIAS_SYS (frexp, double, (double x, int *expptr)); |
| 9255 | 114 # endif |
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115 _GL_CXXALIASWARN (frexp); |
| 9255 | 116 #elif defined GNULIB_POSIXCHECK |
| 117 # undef frexp | |
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118 /* Assume frexp is always declared. */ |
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119 _GL_WARN_ON_USE (frexp, "frexp is unportable - " |
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120 "use gnulib module frexp for portability"); |
| 9255 | 121 #endif |
| 122 | |
| 123 | |
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124 #if @GNULIB_LOGB@ |
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125 # if !@HAVE_DECL_LOGB@ |
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126 _GL_EXTERN_C double logb (double x); |
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127 # endif |
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128 #elif defined GNULIB_POSIXCHECK |
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129 # undef logb |
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130 # if HAVE_RAW_DECL_LOGB |
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131 _GL_WARN_ON_USE (logb, "logb is unportable - " |
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132 "use gnulib module logb for portability"); |
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133 # endif |
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134 #endif |
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135 |
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136 |
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137 #if @GNULIB_ACOSL@ |
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138 # if !@HAVE_ACOSL@ || !@HAVE_DECL_ACOSL@ |
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139 _GL_FUNCDECL_SYS (acosl, long double, (long double x)); |
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140 # endif |
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141 _GL_CXXALIAS_SYS (acosl, long double, (long double x)); |
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142 _GL_CXXALIASWARN (acosl); |
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143 #elif defined GNULIB_POSIXCHECK |
| 9255 | 144 # undef acosl |
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145 # if HAVE_RAW_DECL_ACOSL |
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146 _GL_WARN_ON_USE (acosl, "acosl is unportable - " |
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147 "use gnulib module mathl for portability"); |
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148 # endif |
| 9255 | 149 #endif |
| 150 | |
| 9285 | 151 |
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152 #if @GNULIB_ASINL@ |
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153 # if !@HAVE_ASINL@ || !@HAVE_DECL_ASINL@ |
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154 _GL_FUNCDECL_SYS (asinl, long double, (long double x)); |
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155 # endif |
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156 _GL_CXXALIAS_SYS (asinl, long double, (long double x)); |
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157 _GL_CXXALIASWARN (asinl); |
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158 #elif defined GNULIB_POSIXCHECK |
| 9255 | 159 # undef asinl |
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160 # if HAVE_RAW_DECL_ASINL |
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161 _GL_WARN_ON_USE (asinl, "asinl is unportable - " |
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162 "use gnulib module mathl for portability"); |
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163 # endif |
| 9255 | 164 #endif |
| 165 | |
| 9285 | 166 |
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167 #if @GNULIB_ATANL@ |
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168 # if !@HAVE_ATANL@ || !@HAVE_DECL_ATANL@ |
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169 _GL_FUNCDECL_SYS (atanl, long double, (long double x)); |
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170 # endif |
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171 _GL_CXXALIAS_SYS (atanl, long double, (long double x)); |
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172 _GL_CXXALIASWARN (atanl); |
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173 #elif defined GNULIB_POSIXCHECK |
| 9255 | 174 # undef atanl |
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175 # if HAVE_RAW_DECL_ATANL |
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176 _GL_WARN_ON_USE (atanl, "atanl is unportable - " |
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177 "use gnulib module mathl for portability"); |
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178 # endif |
| 9255 | 179 #endif |
| 180 | |
| 9285 | 181 |
| 9295 | 182 #if @GNULIB_CEILF@ |
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183 # if @REPLACE_CEILF@ |
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184 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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185 # define ceilf rpl_ceilf |
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186 # endif |
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187 _GL_FUNCDECL_RPL (ceilf, float, (float x)); |
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188 _GL_CXXALIAS_RPL (ceilf, float, (float x)); |
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189 #else |
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190 _GL_CXXALIAS_SYS (ceilf, float, (float x)); |
| 9295 | 191 # endif |
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192 _GL_CXXALIASWARN (ceilf); |
| 9295 | 193 #elif defined GNULIB_POSIXCHECK |
| 194 # undef ceilf | |
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195 # if HAVE_RAW_DECL_CEILF |
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196 _GL_WARN_ON_USE (ceilf, "ceilf is unportable - " |
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197 "use gnulib module ceilf for portability"); |
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198 # endif |
| 9295 | 199 #endif |
| 200 | |
| 9297 | 201 #if @GNULIB_CEILL@ |
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202 # if @REPLACE_CEILL@ |
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203 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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204 # define ceill rpl_ceill |
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205 # endif |
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206 _GL_FUNCDECL_RPL (ceill, long double, (long double x)); |
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207 _GL_CXXALIAS_RPL (ceill, long double, (long double x)); |
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208 # else |
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209 _GL_CXXALIAS_SYS (ceill, long double, (long double x)); |
| 9297 | 210 # endif |
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211 _GL_CXXALIASWARN (ceill); |
| 9297 | 212 #elif defined GNULIB_POSIXCHECK |
| 9255 | 213 # undef ceill |
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214 # if HAVE_RAW_DECL_CEILL |
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215 _GL_WARN_ON_USE (ceill, "ceill is unportable - " |
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216 "use gnulib module ceill for portability"); |
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217 # endif |
| 9255 | 218 #endif |
| 219 | |
| 9285 | 220 |
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221 #if @GNULIB_COSL@ |
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222 # if !@HAVE_COSL@ |
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223 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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224 # undef cosl |
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225 # define cosl rpl_cosl |
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226 # endif |
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227 _GL_FUNCDECL_RPL (cosl, long double, (long double x)); |
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228 _GL_CXXALIAS_RPL (cosl, long double, (long double x)); |
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229 # else |
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230 # if !@HAVE_DECL_COSL@ |
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231 _GL_FUNCDECL_SYS (cosl, long double, (long double x)); |
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232 # endif |
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233 _GL_CXXALIAS_SYS (cosl, long double, (long double x)); |
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234 # endif |
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235 _GL_CXXALIASWARN (cosl); |
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236 #elif defined GNULIB_POSIXCHECK |
| 9255 | 237 # undef cosl |
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238 # if HAVE_RAW_DECL_COSL |
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239 _GL_WARN_ON_USE (cosl, "cosl is unportable - " |
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240 "use gnulib module mathl for portability"); |
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241 # endif |
| 9255 | 242 #endif |
| 243 | |
| 9285 | 244 |
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245 #if @GNULIB_EXPL@ |
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246 # if !@HAVE_EXPL@ || !@HAVE_DECL_EXPL@ |
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247 _GL_FUNCDECL_SYS (expl, long double, (long double x)); |
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248 # endif |
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249 _GL_CXXALIAS_SYS (expl, long double, (long double x)); |
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250 _GL_CXXALIASWARN (expl); |
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251 #elif defined GNULIB_POSIXCHECK |
| 9255 | 252 # undef expl |
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253 # if HAVE_RAW_DECL_EXPL |
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254 _GL_WARN_ON_USE (expl, "expl is unportable - " |
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255 "use gnulib module mathl for portability"); |
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256 # endif |
| 9255 | 257 #endif |
| 258 | |
| 9285 | 259 |
| 9291 | 260 #if @GNULIB_FLOORF@ |
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261 # if @REPLACE_FLOORF@ |
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262 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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263 # define floorf rpl_floorf |
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264 # endif |
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265 _GL_FUNCDECL_RPL (floorf, float, (float x)); |
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266 _GL_CXXALIAS_RPL (floorf, float, (float x)); |
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267 #else |
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268 _GL_CXXALIAS_SYS (floorf, float, (float x)); |
| 9291 | 269 # endif |
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270 _GL_CXXALIASWARN (floorf); |
| 9291 | 271 #elif defined GNULIB_POSIXCHECK |
| 272 # undef floorf | |
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273 # if HAVE_RAW_DECL_FLOORF |
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274 _GL_WARN_ON_USE (floorf, "floorf is unportable - " |
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275 "use gnulib module floorf for portability"); |
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276 # endif |
| 9291 | 277 #endif |
| 278 | |
| 9293 | 279 #if @GNULIB_FLOORL@ |
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280 # if @REPLACE_FLOORL@ |
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281 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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282 # define floorl rpl_floorl |
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283 # endif |
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284 _GL_FUNCDECL_RPL (floorl, long double, (long double x)); |
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285 _GL_CXXALIAS_RPL (floorl, long double, (long double x)); |
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286 # else |
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287 _GL_CXXALIAS_SYS (floorl, long double, (long double x)); |
| 9293 | 288 # endif |
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289 _GL_CXXALIASWARN (floorl); |
| 9293 | 290 #elif defined GNULIB_POSIXCHECK |
| 9255 | 291 # undef floorl |
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292 # if HAVE_RAW_DECL_FLOORL |
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293 _GL_WARN_ON_USE (floorl, "floorl is unportable - " |
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294 "use gnulib module floorl for portability"); |
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295 # endif |
| 9255 | 296 #endif |
| 297 | |
| 9285 | 298 |
| 9255 | 299 /* Write x as |
| 300 x = mantissa * 2^exp | |
| 301 where | |
| 302 If x finite and nonzero: 0.5 <= |mantissa| < 1.0. | |
| 303 If x is zero: mantissa = x, exp = 0. | |
| 304 If x is infinite or NaN: mantissa = x, exp unspecified. | |
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305 Store exp in *EXPPTR and return mantissa. */ |
| 9255 | 306 #if @GNULIB_FREXPL@ && @REPLACE_FREXPL@ |
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307 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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308 # define frexpl rpl_frexpl |
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309 # endif |
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310 _GL_FUNCDECL_RPL (frexpl, long double, |
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311 (long double x, int *expptr) _GL_ARG_NONNULL ((2))); |
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312 _GL_CXXALIAS_RPL (frexpl, long double, (long double x, int *expptr)); |
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313 #else |
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314 # if !@HAVE_DECL_FREXPL@ |
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315 _GL_FUNCDECL_SYS (frexpl, long double, |
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316 (long double x, int *expptr) _GL_ARG_NONNULL ((2))); |
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317 # endif |
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318 # if @GNULIB_FREXPL@ |
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319 _GL_CXXALIAS_SYS (frexpl, long double, (long double x, int *expptr)); |
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320 # endif |
| 9255 | 321 #endif |
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322 #if @GNULIB_FREXPL@ |
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323 _GL_CXXALIASWARN (frexpl); |
| 9255 | 324 #endif |
| 325 #if !@GNULIB_FREXPL@ && defined GNULIB_POSIXCHECK | |
| 326 # undef frexpl | |
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327 # if HAVE_RAW_DECL_FREXPL |
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328 _GL_WARN_ON_USE (frexpl, "frexpl is unportable - " |
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329 "use gnulib module frexpl for portability"); |
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330 # endif |
| 9255 | 331 #endif |
| 332 | |
| 9285 | 333 |
| 9255 | 334 /* Return x * 2^exp. */ |
| 335 #if @GNULIB_LDEXPL@ && @REPLACE_LDEXPL@ | |
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336 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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337 # define ldexpl rpl_ldexpl |
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338 # endif |
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339 _GL_FUNCDECL_RPL (ldexpl, long double, (long double x, int exp)); |
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340 _GL_CXXALIAS_RPL (ldexpl, long double, (long double x, int exp)); |
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341 #else |
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342 # if !@HAVE_DECL_LDEXPL@ |
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343 _GL_FUNCDECL_SYS (ldexpl, long double, (long double x, int exp)); |
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344 # endif |
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345 # if @GNULIB_LDEXPL@ |
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346 _GL_CXXALIAS_SYS (ldexpl, long double, (long double x, int exp)); |
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347 # endif |
| 9255 | 348 #endif |
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349 #if @GNULIB_LDEXPL@ |
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350 _GL_CXXALIASWARN (ldexpl); |
| 9255 | 351 #endif |
| 352 #if !@GNULIB_LDEXPL@ && defined GNULIB_POSIXCHECK | |
| 353 # undef ldexpl | |
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354 # if HAVE_RAW_DECL_LDEXPL |
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355 _GL_WARN_ON_USE (ldexpl, "ldexpl is unportable - " |
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356 "use gnulib module ldexpl for portability"); |
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357 # endif |
| 9255 | 358 #endif |
| 359 | |
| 9285 | 360 |
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361 #if @GNULIB_LOGL@ |
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362 # if !@HAVE_LOGL@ |
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363 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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364 # undef logl |
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365 # define logl rpl_logl |
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366 # endif |
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367 _GL_FUNCDECL_RPL (logl, long double, (long double x)); |
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368 _GL_CXXALIAS_RPL (logl, long double, (long double x)); |
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369 # else |
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370 # if !@HAVE_DECL_LOGL@ |
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371 _GL_FUNCDECL_SYS (logl, long double, (long double x)); |
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372 # endif |
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373 _GL_CXXALIAS_SYS (logl, long double, (long double x)); |
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374 # endif |
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375 _GL_CXXALIASWARN (logl); |
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376 #elif defined GNULIB_POSIXCHECK |
| 9255 | 377 # undef logl |
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378 # if HAVE_RAW_DECL_LOGL |
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379 _GL_WARN_ON_USE (logl, "logl is unportable - " |
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380 "use gnulib module mathl for portability"); |
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381 # endif |
| 9255 | 382 #endif |
| 383 | |
| 9285 | 384 |
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385 #if @GNULIB_ROUNDF@ |
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386 # if @REPLACE_ROUNDF@ |
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387 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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388 # undef roundf |
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389 # define roundf rpl_roundf |
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390 # endif |
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391 _GL_FUNCDECL_RPL (roundf, float, (float x)); |
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392 _GL_CXXALIAS_RPL (roundf, float, (float x)); |
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393 # else |
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394 _GL_CXXALIAS_SYS (roundf, float, (float x)); |
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395 # endif |
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396 _GL_CXXALIASWARN (roundf); |
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397 #elif defined GNULIB_POSIXCHECK |
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398 # undef roundf |
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399 # if HAVE_RAW_DECL_ROUNDF |
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400 _GL_WARN_ON_USE (roundf, "roundf is unportable - " |
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401 "use gnulib module roundf for portability"); |
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402 # endif |
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403 #endif |
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404 |
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405 #if @GNULIB_ROUND@ |
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406 # if @REPLACE_ROUND@ |
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407 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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408 # undef round |
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409 # define round rpl_round |
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410 # endif |
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411 _GL_FUNCDECL_RPL (round, double, (double x)); |
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412 _GL_CXXALIAS_RPL (round, double, (double x)); |
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413 # else |
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414 _GL_CXXALIAS_SYS (round, double, (double x)); |
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415 # endif |
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416 _GL_CXXALIASWARN (round); |
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417 #elif defined GNULIB_POSIXCHECK |
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418 # undef round |
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419 # if HAVE_RAW_DECL_ROUND |
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420 _GL_WARN_ON_USE (round, "round is unportable - " |
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421 "use gnulib module round for portability"); |
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422 # endif |
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423 #endif |
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424 |
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425 #if @GNULIB_ROUNDL@ |
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426 # if @REPLACE_ROUNDL@ |
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427 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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428 # undef roundl |
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429 # define roundl rpl_roundl |
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430 # endif |
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431 _GL_FUNCDECL_RPL (roundl, long double, (long double x)); |
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432 _GL_CXXALIAS_RPL (roundl, long double, (long double x)); |
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433 # else |
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434 _GL_CXXALIAS_SYS (roundl, long double, (long double x)); |
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435 # endif |
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436 _GL_CXXALIASWARN (roundl); |
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437 #elif defined GNULIB_POSIXCHECK |
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438 # undef roundl |
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439 # if HAVE_RAW_DECL_ROUNDL |
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440 _GL_WARN_ON_USE (roundl, "roundl is unportable - " |
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441 "use gnulib module roundl for portability"); |
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442 # endif |
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443 #endif |
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444 |
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445 |
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446 #if @GNULIB_SINL@ |
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447 # if !@HAVE_SINL@ |
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448 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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449 # undef sinl |
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450 # define sinl rpl_sinl |
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451 # endif |
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452 _GL_FUNCDECL_RPL (sinl, long double, (long double x)); |
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453 _GL_CXXALIAS_RPL (sinl, long double, (long double x)); |
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454 # else |
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455 # if !@HAVE_DECL_SINL@ |
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456 _GL_FUNCDECL_SYS (sinl, long double, (long double x)); |
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457 # endif |
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458 _GL_CXXALIAS_SYS (sinl, long double, (long double x)); |
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459 # endif |
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460 _GL_CXXALIASWARN (sinl); |
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461 #elif defined GNULIB_POSIXCHECK |
| 9255 | 462 # undef sinl |
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463 # if HAVE_RAW_DECL_SINL |
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464 _GL_WARN_ON_USE (sinl, "sinl is unportable - " |
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465 "use gnulib module mathl for portability"); |
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466 # endif |
| 9255 | 467 #endif |
| 468 | |
| 9285 | 469 |
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470 #if @GNULIB_SQRTL@ |
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471 # if !@HAVE_SQRTL@ || !@HAVE_DECL_SQRTL@ |
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472 _GL_FUNCDECL_SYS (sqrtl, long double, (long double x)); |
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473 # endif |
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474 _GL_CXXALIAS_SYS (sqrtl, long double, (long double x)); |
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475 _GL_CXXALIASWARN (sqrtl); |
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476 #elif defined GNULIB_POSIXCHECK |
| 9255 | 477 # undef sqrtl |
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478 # if HAVE_RAW_DECL_SQRTL |
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479 _GL_WARN_ON_USE (sqrtl, "sqrtl is unportable - " |
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480 "use gnulib module mathl for portability"); |
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481 # endif |
| 9255 | 482 #endif |
| 483 | |
| 9285 | 484 |
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485 #if @GNULIB_TANL@ |
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486 # if !@HAVE_TANL@ || !@HAVE_DECL_TANL@ |
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487 _GL_FUNCDECL_SYS (tanl, long double, (long double x)); |
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488 # endif |
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489 _GL_CXXALIAS_SYS (tanl, long double, (long double x)); |
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490 _GL_CXXALIASWARN (tanl); |
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491 #elif defined GNULIB_POSIXCHECK |
| 9255 | 492 # undef tanl |
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493 # if HAVE_RAW_DECL_TANL |
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494 _GL_WARN_ON_USE (tanl, "tanl is unportable - " |
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495 "use gnulib module mathl for portability"); |
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496 # endif |
| 9255 | 497 #endif |
| 498 | |
| 9285 | 499 |
| 500 #if @GNULIB_TRUNCF@ | |
| 501 # if !@HAVE_DECL_TRUNCF@ | |
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502 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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503 # define truncf rpl_truncf |
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504 # endif |
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505 _GL_FUNCDECL_RPL (truncf, float, (float x)); |
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506 _GL_CXXALIAS_RPL (truncf, float, (float x)); |
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507 # else |
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508 _GL_CXXALIAS_SYS (truncf, float, (float x)); |
| 9285 | 509 # endif |
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510 _GL_CXXALIASWARN (truncf); |
| 9285 | 511 #elif defined GNULIB_POSIXCHECK |
| 512 # undef truncf | |
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513 # if HAVE_RAW_DECL_TRUNCF |
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514 _GL_WARN_ON_USE (truncf, "truncf is unportable - " |
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515 "use gnulib module truncf for portability"); |
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516 # endif |
| 9285 | 517 #endif |
| 518 | |
| 9282 | 519 #if @GNULIB_TRUNC@ |
| 520 # if !@HAVE_DECL_TRUNC@ | |
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521 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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522 # define trunc rpl_trunc |
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523 # endif |
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524 _GL_FUNCDECL_RPL (trunc, double, (double x)); |
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525 _GL_CXXALIAS_RPL (trunc, double, (double x)); |
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526 # else |
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527 _GL_CXXALIAS_SYS (trunc, double, (double x)); |
| 9282 | 528 # endif |
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529 _GL_CXXALIASWARN (trunc); |
| 9282 | 530 #elif defined GNULIB_POSIXCHECK |
| 531 # undef trunc | |
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532 # if HAVE_RAW_DECL_TRUNC |
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533 _GL_WARN_ON_USE (trunc, "trunc is unportable - " |
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534 "use gnulib module trunc for portability"); |
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535 # endif |
| 9282 | 536 #endif |
| 537 | |
| 9287 | 538 #if @GNULIB_TRUNCL@ |
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539 # if @REPLACE_TRUNCL@ |
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540 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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541 # undef truncl |
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542 # define truncl rpl_truncl |
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543 # endif |
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544 _GL_FUNCDECL_RPL (truncl, long double, (long double x)); |
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545 _GL_CXXALIAS_RPL (truncl, long double, (long double x)); |
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546 # else |
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547 _GL_CXXALIAS_SYS (truncl, long double, (long double x)); |
| 9287 | 548 # endif |
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549 _GL_CXXALIASWARN (truncl); |
| 9287 | 550 #elif defined GNULIB_POSIXCHECK |
| 551 # undef truncl | |
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552 # if HAVE_RAW_DECL_TRUNCL |
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553 _GL_WARN_ON_USE (truncl, "truncl is unportable - " |
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554 "use gnulib module truncl for portability"); |
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555 # endif |
| 9287 | 556 #endif |
| 557 | |
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558 |
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559 #if @GNULIB_ISFINITE@ |
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560 # if @REPLACE_ISFINITE@ |
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561 _GL_EXTERN_C int gl_isfinitef (float x); |
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562 _GL_EXTERN_C int gl_isfinited (double x); |
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563 _GL_EXTERN_C int gl_isfinitel (long double x); |
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564 # undef isfinite |
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565 # define isfinite(x) \ |
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566 (sizeof (x) == sizeof (long double) ? gl_isfinitel (x) : \ |
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567 sizeof (x) == sizeof (double) ? gl_isfinited (x) : \ |
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568 gl_isfinitef (x)) |
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569 # endif |
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570 #elif defined GNULIB_POSIXCHECK |
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571 # if defined isfinite |
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572 _GL_WARN_REAL_FLOATING_DECL (isfinite); |
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573 # undef isfinite |
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574 # define isfinite(x) _GL_WARN_REAL_FLOATING_IMPL (isfinite, x) |
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575 # endif |
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576 #endif |
| 9255 | 577 |
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578 |
| 10287 | 579 #if @GNULIB_ISINF@ |
| 580 # if @REPLACE_ISINF@ | |
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581 _GL_EXTERN_C int gl_isinff (float x); |
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582 _GL_EXTERN_C int gl_isinfd (double x); |
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583 _GL_EXTERN_C int gl_isinfl (long double x); |
| 10287 | 584 # undef isinf |
| 585 # define isinf(x) \ | |
| 586 (sizeof (x) == sizeof (long double) ? gl_isinfl (x) : \ | |
| 587 sizeof (x) == sizeof (double) ? gl_isinfd (x) : \ | |
| 588 gl_isinff (x)) | |
| 589 # endif | |
| 590 #elif defined GNULIB_POSIXCHECK | |
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591 # if defined isinf |
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592 _GL_WARN_REAL_FLOATING_DECL (isinf); |
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593 # undef isinf |
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594 # define isinf(x) _GL_WARN_REAL_FLOATING_IMPL (isinf, x) |
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595 # endif |
| 10287 | 596 #endif |
| 597 | |
| 598 | |
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599 #if @GNULIB_ISNANF@ |
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600 /* Test for NaN for 'float' numbers. */ |
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601 # if @HAVE_ISNANF@ |
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602 /* The original <math.h> included above provides a declaration of isnan macro |
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603 or (older) isnanf function. */ |
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604 # if __GNUC__ >= 4 |
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605 /* GCC 4.0 and newer provides three built-ins for isnan. */ |
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606 # undef isnanf |
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607 # define isnanf(x) __builtin_isnanf ((float)(x)) |
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608 # elif defined isnan |
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609 # undef isnanf |
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610 # define isnanf(x) isnan ((float)(x)) |
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611 # endif |
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612 # else |
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613 /* Test whether X is a NaN. */ |
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614 # undef isnanf |
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615 # define isnanf rpl_isnanf |
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616 _GL_EXTERN_C int isnanf (float x); |
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617 # endif |
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618 #endif |
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619 |
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620 #if @GNULIB_ISNAND@ |
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621 /* Test for NaN for 'double' numbers. |
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622 This function is a gnulib extension, unlike isnan() which applied only |
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623 to 'double' numbers earlier but now is a type-generic macro. */ |
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624 # if @HAVE_ISNAND@ |
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625 /* The original <math.h> included above provides a declaration of isnan macro. */ |
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626 # if __GNUC__ >= 4 |
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627 /* GCC 4.0 and newer provides three built-ins for isnan. */ |
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628 # undef isnand |
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629 # define isnand(x) __builtin_isnan ((double)(x)) |
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630 # else |
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631 # undef isnand |
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632 # define isnand(x) isnan ((double)(x)) |
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633 # endif |
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634 # else |
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635 /* Test whether X is a NaN. */ |
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636 # undef isnand |
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637 # define isnand rpl_isnand |
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638 _GL_EXTERN_C int isnand (double x); |
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639 # endif |
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640 #endif |
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641 |
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642 #if @GNULIB_ISNANL@ |
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643 /* Test for NaN for 'long double' numbers. */ |
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644 # if @HAVE_ISNANL@ |
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645 /* The original <math.h> included above provides a declaration of isnan macro or (older) isnanl function. */ |
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646 # if __GNUC__ >= 4 |
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647 /* GCC 4.0 and newer provides three built-ins for isnan. */ |
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648 # undef isnanl |
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649 # define isnanl(x) __builtin_isnanl ((long double)(x)) |
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650 # elif defined isnan |
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651 # undef isnanl |
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652 # define isnanl(x) isnan ((long double)(x)) |
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653 # endif |
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654 # else |
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655 /* Test whether X is a NaN. */ |
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656 # undef isnanl |
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657 # define isnanl rpl_isnanl |
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658 _GL_EXTERN_C int isnanl (long double x); |
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659 # endif |
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660 #endif |
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661 |
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662 /* This must come *after* the snippets for GNULIB_ISNANF and GNULIB_ISNANL! */ |
| 10267 | 663 #if @GNULIB_ISNAN@ |
| 664 # if @REPLACE_ISNAN@ | |
| 665 /* We can't just use the isnanf macro (e.g.) as exposed by | |
| 666 isnanf.h (e.g.) here, because those may end up being macros | |
| 667 that recursively expand back to isnan. So use the gnulib | |
| 668 replacements for them directly. */ | |
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669 # if @HAVE_ISNANF@ && __GNUC__ >= 4 |
| 10267 | 670 # define gl_isnan_f(x) __builtin_isnan ((float)(x)) |
| 671 # else | |
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672 _GL_EXTERN_C int rpl_isnanf (float x); |
| 10267 | 673 # define gl_isnan_f(x) rpl_isnanf (x) |
| 674 # endif | |
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675 # if @HAVE_ISNAND@ && __GNUC__ >= 4 |
| 10267 | 676 # define gl_isnan_d(x) __builtin_isnan ((double)(x)) |
| 677 # else | |
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678 _GL_EXTERN_C int rpl_isnand (double x); |
| 10267 | 679 # define gl_isnan_d(x) rpl_isnand (x) |
| 680 # endif | |
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681 # if @HAVE_ISNANL@ && __GNUC__ >= 4 |
| 10267 | 682 # define gl_isnan_l(x) __builtin_isnan ((long double)(x)) |
| 683 # else | |
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684 _GL_EXTERN_C int rpl_isnanl (long double x); |
| 10267 | 685 # define gl_isnan_l(x) rpl_isnanl (x) |
| 686 # endif | |
| 687 # undef isnan | |
| 688 # define isnan(x) \ | |
| 689 (sizeof (x) == sizeof (long double) ? gl_isnan_l (x) : \ | |
| 690 sizeof (x) == sizeof (double) ? gl_isnan_d (x) : \ | |
| 691 gl_isnan_f (x)) | |
| 692 # endif | |
| 693 #elif defined GNULIB_POSIXCHECK | |
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694 # if defined isnan |
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695 _GL_WARN_REAL_FLOATING_DECL (isnan); |
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696 # undef isnan |
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697 # define isnan(x) _GL_WARN_REAL_FLOATING_IMPL (isnan, x) |
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698 # endif |
| 10267 | 699 #endif |
| 700 | |
| 701 | |
| 9255 | 702 #if @GNULIB_SIGNBIT@ |
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703 # if @REPLACE_SIGNBIT_USING_GCC@ |
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704 # undef signbit |
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705 /* GCC 4.0 and newer provides three built-ins for signbit. */ |
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706 # define signbit(x) \ |
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707 (sizeof (x) == sizeof (long double) ? __builtin_signbitl (x) : \ |
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708 sizeof (x) == sizeof (double) ? __builtin_signbit (x) : \ |
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709 __builtin_signbitf (x)) |
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710 # endif |
| 9255 | 711 # if @REPLACE_SIGNBIT@ |
| 712 # undef signbit | |
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713 _GL_EXTERN_C int gl_signbitf (float arg); |
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714 _GL_EXTERN_C int gl_signbitd (double arg); |
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715 _GL_EXTERN_C int gl_signbitl (long double arg); |
| 9255 | 716 # if __GNUC__ >= 2 && !__STRICT_ANSI__ |
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717 # if defined FLT_SIGNBIT_WORD && defined FLT_SIGNBIT_BIT && !defined gl_signbitf |
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718 # define gl_signbitf_OPTIMIZED_MACRO |
| 9255 | 719 # define gl_signbitf(arg) \ |
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720 ({ union { float _value; \ |
| 9255 | 721 unsigned int _word[(sizeof (float) + sizeof (unsigned int) - 1) / sizeof (unsigned int)]; \ |
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722 } _m; \ |
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723 _m._value = (arg); \ |
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724 (_m._word[FLT_SIGNBIT_WORD] >> FLT_SIGNBIT_BIT) & 1; \ |
| 9255 | 725 }) |
| 726 # endif | |
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727 # if defined DBL_SIGNBIT_WORD && defined DBL_SIGNBIT_BIT && !defined gl_signbitd |
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728 # define gl_signbitd_OPTIMIZED_MACRO |
| 9255 | 729 # define gl_signbitd(arg) \ |
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730 ({ union { double _value; \ |
| 9255 | 731 unsigned int _word[(sizeof (double) + sizeof (unsigned int) - 1) / sizeof (unsigned int)]; \ |
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732 } _m; \ |
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733 _m._value = (arg); \ |
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734 (_m._word[DBL_SIGNBIT_WORD] >> DBL_SIGNBIT_BIT) & 1; \ |
| 9255 | 735 }) |
| 736 # endif | |
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737 # if defined LDBL_SIGNBIT_WORD && defined LDBL_SIGNBIT_BIT && !defined gl_signbitl |
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738 # define gl_signbitl_OPTIMIZED_MACRO |
| 9255 | 739 # define gl_signbitl(arg) \ |
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740 ({ union { long double _value; \ |
| 9255 | 741 unsigned int _word[(sizeof (long double) + sizeof (unsigned int) - 1) / sizeof (unsigned int)]; \ |
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742 } _m; \ |
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743 _m._value = (arg); \ |
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744 (_m._word[LDBL_SIGNBIT_WORD] >> LDBL_SIGNBIT_BIT) & 1; \ |
| 9255 | 745 }) |
| 746 # endif | |
| 747 # endif | |
| 748 # define signbit(x) \ | |
| 749 (sizeof (x) == sizeof (long double) ? gl_signbitl (x) : \ | |
| 750 sizeof (x) == sizeof (double) ? gl_signbitd (x) : \ | |
| 751 gl_signbitf (x)) | |
| 752 # endif | |
| 753 #elif defined GNULIB_POSIXCHECK | |
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754 # if defined signbit |
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755 _GL_WARN_REAL_FLOATING_DECL (signbit); |
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756 # undef signbit |
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757 # define signbit(x) _GL_WARN_REAL_FLOATING_IMPL (signbit, x) |
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758 # endif |
| 9255 | 759 #endif |
| 760 | |
| 761 | |
| 762 #endif /* _GL_MATH_H */ | |
| 763 #endif /* _GL_MATH_H */ |