math/test-math-cxx11.cc

   1 /* Test C99 math functions are available in C++11 without _GNU_SOURCE.
   2    Copyright (C) 2017-2022 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library 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 GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #undef _GNU_SOURCE
  20 #undef _DEFAULT_SOURCE
  21 #undef _XOPEN_SOURCE
  22 #undef _POSIX_SOURCE
  23 #undef _POSIX_C_SOURCE
  24 // __STRICT_ANSI__ gets defined by -std=c++11 in CFLAGS
  25 #include <math.h>
  26 #include <stdio.h>
  27
  28 static int
  29 do_test (void)
  30 {
  31 #ifdef _GNU_SOURCE
  32   printf ("FAIL: _GNU_SOURCE is defined.\n");
  33   return 1;
  34 #endif
  35
  36 #if __cplusplus >= 201103L
  37   /* Verify that C11 math functions and types are defined for C++11,
  38      without _GNU_SOURCE being defined. [BZ #21326] */
  39   (void) FP_INFINITE;
  40   (void) FP_NAN;
  41   (void) FP_NORMAL;
  42   (void) FP_SUBNORMAL;
  43   (void) FP_ZERO;
  44   double_t d = 1.0;
  45   (void) d;
  46   float_t f = 1.0f;
  47   (void) f;
  48   (void) acosh;
  49   (void) acoshf;
  50   (void) acoshl;
  51   (void) asinh;
  52   (void) asinhf;
  53   (void) asinhl;
  54   (void) atanh;
  55   (void) atanhf;
  56   (void) atanhl;
  57   (void) cbrt;
  58   (void) cbrtf;
  59   (void) cbrtl;
  60   (void) copysign;
  61   (void) copysignf;
  62   (void) copysignl;
  63   (void) erf;
  64   (void) erff;
  65   (void) erfl;
  66   (void) erfc;
  67   (void) erfcf;
  68   (void) erfcl;
  69   (void) exp2;
  70   (void) exp2f;
  71   (void) exp2l;
  72   (void) expm1;
  73   (void) expm1f;
  74   (void) expm1l;
  75   (void) fdim;
  76   (void) fdimf;
  77   (void) fdiml;
  78   (void) fma;
  79   (void) fmaf;
  80   (void) fmal;
  81   (void) fmax;
  82   (void) fmaxf;
  83   (void) fmaxl;
  84   (void) fmin;
  85   (void) fminf;
  86   (void) fminl;
  87   (void) hypot;
  88   (void) hypotf;
  89   (void) hypotl;
  90   (void) ilogb;
  91   (void) ilogbf;
  92   (void) ilogbl;
  93   (void) lgamma;
  94   (void) lgammaf;
  95   (void) lgammal;
  96   (void) llrint;
  97   (void) llrintf;
  98   (void) llrintl;
  99   (void) llround;
 100   (void) llroundf;
 101   (void) llroundl;
 102   (void) log1p;
 103   (void) log1pf;
 104   (void) log1pl;
 105   (void) log2;
 106   (void) log2f;
 107   (void) log2l;
 108   (void) logb;
 109   (void) logbf;
 110   (void) logbl;
 111   (void) lrint;
 112   (void) lrintf;
 113   (void) lrintl;
 114   (void) lround;
 115   (void) lroundf;
 116   (void) lroundl;
 117   (void) nan;
 118   (void) nanf;
 119   (void) nanl;
 120   (void) nearbyint;
 121   (void) nearbyintf;
 122   (void) nearbyintl;
 123   (void) nextafter;
 124   (void) nextafterf;
 125   (void) nextafterl;
 126   (void) nexttoward;
 127   (void) nexttowardf;
 128   (void) nexttowardl;
 129   (void) remainder;
 130   (void) remainderf;
 131   (void) remainderl;
 132   (void) remquo;
 133   (void) remquof;
 134   (void) remquol;
 135   (void) rint;
 136   (void) rintf;
 137   (void) rintl;
 138   (void) round;
 139   (void) roundf;
 140   (void) roundl;
 141   (void) scalbln;
 142   (void) scalblnf;
 143   (void) scalblnl;
 144   (void) scalbn;
 145   (void) scalbnf;
 146   (void) scalbnl;
 147   (void) tgamma;
 148   (void) tgammaf;
 149   (void) tgammal;
 150   (void) trunc;
 151   (void) truncf;
 152   (void) truncl;
 153   printf ("PASS: C11 math functions present in C++11 without _GNU_SOURCE.\n");
 154 #else
 155   printf ("UNSUPPORTED: C++11 not enabled.\n");
 156 #endif
 157   return 0;
 158 }
 159
 160 #include <support/test-driver.c>