sysdeps/ieee754/ldbl-64-128/strtold_l.c

   1 /* Copyright (C) 1999-2021 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 <bits/floatn.h>
  19
  20 #if __HAVE_FLOAT128 && !__HAVE_DISTINCT_FLOAT128
  21 # define strtof128_l __hide_strtof128_l
  22 # define wcstof128_l __hide_wcstof128_l
  23 #endif
  24
  25 #if __HAVE_FLOAT64X_LONG_DOUBLE
  26 # define strtof64x_l __hide_strtof64x_l
  27 # define wcstof64x_l __hide_wcstof64x_l
  28 #endif
  29
  30 #include <math.h>
  31 #include <stdlib.h>
  32 #include <wchar.h>
  33
  34 /* The actual implementation for all floating point sizes is in strtod.c.
  35    These macros tell it to produce the `long double' version, `strtold'.  */
  36
  37 #define FLOAT           long double
  38 #define FLT             LDBL
  39 #ifdef USE_WIDE_CHAR
  40 extern long double ____new_wcstold_l (const wchar_t *, wchar_t **, locale_t);
  41 # define STRTOF         __new_wcstold_l
  42 # define __STRTOF       ____new_wcstold_l
  43 # define ____STRTOF_INTERNAL ____wcstold_l_internal
  44 # define STRTOF_NAN     __wcstold_nan
  45 #else
  46 extern long double ____new_strtold_l (const char *, char **, locale_t);
  47 # define STRTOF         __new_strtold_l
  48 # define __STRTOF       ____new_strtold_l
  49 # define ____STRTOF_INTERNAL ____strtold_l_internal
  50 # define STRTOF_NAN     __strtold_nan
  51 #endif
  52 extern __typeof (__STRTOF) STRTOF;
  53 libc_hidden_proto (__STRTOF)
  54 libc_hidden_proto (STRTOF)
  55 #define MPN2FLOAT       __mpn_construct_long_double
  56 #define FLOAT_HUGE_VAL  HUGE_VALL
  57
  58 #include <strtod_l.c>
  59
  60 #ifdef __LONG_DOUBLE_MATH_OPTIONAL
  61 # include <math_ldbl_opt.h>
  62 # ifdef USE_WIDE_CHAR
  63 weak_alias (____new_wcstold_l, ___new_wcstold_l);
  64 long_double_symbol (libc, ___new_wcstold_l, wcstold_l);
  65 long_double_symbol (libc, ____new_wcstold_l, __wcstold_l);
  66 # else
  67 weak_alias (____new_strtold_l, ___new_strtold_l);
  68 long_double_symbol (libc, ___new_strtold_l, strtold_l);
  69 long_double_symbol (libc, ____new_strtold_l, __strtold_l);
  70 # endif
  71 #endif
  72
  73 #if __HAVE_FLOAT128 && !__HAVE_DISTINCT_FLOAT128
  74 # undef strtof128_l
  75 # undef wcstof128_l
  76 # ifdef USE_WIDE_CHAR
  77 weak_alias (____new_wcstold_l, wcstof128_l)
  78 # else
  79 weak_alias (____new_strtold_l, strtof128_l)
  80 # endif
  81 #endif
  82
  83 #if __HAVE_FLOAT64X_LONG_DOUBLE
  84 # undef strtof64x_l
  85 # undef wcstof64x_l
  86 # ifdef USE_WIDE_CHAR
  87 weak_alias (____new_wcstold_l, wcstof64x_l)
  88 # else
  89 weak_alias (____new_strtold_l, strtof64x_l)
  90 # endif
  91 #endif