stdlib/strtold_l.c

   1 /* Copyright (C) 1999-2023 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <math.h>
  19 #include <stdlib.h>
  20 #include <wchar.h>
  21
  22 #ifdef USE_WIDE_CHAR
  23 # define STRING_TYPE    wchar_t
  24 # define STRTOLD        wcstold_l
  25 # define __STRTOLD      __wcstold_l
  26 # define __STRTOD       __wcstod_l
  27 #else
  28 # define STRING_TYPE    char
  29 # define STRTOLD        strtold_l
  30 # define __STRTOLD      __strtold_l
  31 # define __STRTOD       __strtod_l
  32 #endif
  33
  34 #define INTERNAL(x) INTERNAL1(x)
  35 #define INTERNAL1(x) __##x##_internal
  36
  37 extern double INTERNAL (__STRTOD) (const STRING_TYPE *, STRING_TYPE **,
  38                                    int, locale_t);
  39
  40 /* There is no `long double' type, use the `double' implementations.  */
  41 long double
  42 INTERNAL (__STRTOLD) (const STRING_TYPE *nptr, STRING_TYPE **endptr,
  43                       int group, locale_t loc)
  44 {
  45   return INTERNAL (__STRTOD) (nptr, endptr, group, loc);
  46 }
  47 #ifndef USE_WIDE_CHAR
  48 libc_hidden_def (INTERNAL (__STRTOLD))
  49 #endif
  50
  51 long double
  52 weak_function
  53 __STRTOLD (const STRING_TYPE *nptr, STRING_TYPE **endptr, locale_t loc)
  54 {
  55   return INTERNAL (__STRTOD) (nptr, endptr, 0, loc);
  56 }
  57 #if defined _LIBC
  58 libc_hidden_def (__STRTOLD)
  59 libc_hidden_ver (__STRTOLD, STRTOLD)
  60 #endif
  61 weak_alias (__STRTOLD, STRTOLD)