stdlib/strtof_l.c

   1 /* Convert string representing a number to float value, using given locale.
   2    Copyright (C) 1997-2013 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library 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    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, see
  18    <http://www.gnu.org/licenses/>.  */
  19
  20 #include <xlocale.h>
  21
  22 extern float ____strtof_l_internal (const char *, char **, int, __locale_t);
  23 extern unsigned long long int ____strtoull_l_internal (const char *, char **,
  24                                                        int, int, __locale_t);
  25
  26 #define FLOAT           float
  27 #define FLT             FLT
  28 #ifdef USE_WIDE_CHAR
  29 # define STRTOF         wcstof_l
  30 # define __STRTOF       __wcstof_l
  31 #else
  32 # define STRTOF         strtof_l
  33 # define __STRTOF       __strtof_l
  34 #endif
  35 #define MPN2FLOAT       __mpn_construct_float
  36 #define FLOAT_HUGE_VAL  HUGE_VALF
  37 #define SET_MANTISSA(flt, mant) \
  38   do { union ieee754_float u;                                                 \
  39        u.f = (flt);                                                           \
  40        if ((mant & 0x7fffff) == 0)                                            \
  41          mant = 0x400000;                                                     \
  42        u.ieee.mantissa = (mant) & 0x7fffff;                                   \
  43        (flt) = u.f;                                                           \
  44   } while (0)
  45
  46 #include "strtod_l.c"