wcsmbs/wcstold.c

   1 /* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    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    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  20
  21 /* The actual implementation for all floating point sizes is in strtod.c.
  22    These macros tell it to produce the `long double' version, `wcstold'.  */
  23
  24 #define FLOAT           long double
  25 #define FLT             LDBL
  26 #ifdef USE_IN_EXTENDED_LOCALE_MODEL
  27 # define STRTOF         __wcstold_l
  28 #else
  29 # define STRTOF         wcstold
  30 #endif
  31 #define MPN2FLOAT       __mpn_construct_long_double
  32 #define FLOAT_HUGE_VAL  HUGE_VALL
  33 #define USE_WIDE_CHAR   1
  34 #define SET_MANTISSA(flt, mant) \
  35   do { union ieee854_long_double u;                                           \
  36        u.d = (flt);                                                           \
  37        if ((mant & 0x7fffffffffffffffULL) == 0)                               \
  38          mant = 0x4000000000000000ULL;                                        \
  39        u.ieee.mantissa0 = (((mant) >> 32) & 0x7fffffff) | 0x80000000;         \
  40        u.ieee.mantissa1 = (mant) & 0xffffffff;                                \
  41        (flt) = u.d;                                                           \
  42   } while (0)
  43
  44 #include <stdlib/strtod.c>