sysdeps/ieee754/ldbl-96/strtold_l.c

   1 /* Copyright (C) 1999, 2004, 2005 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, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #include <math.h>
  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, `strtold'.  */
  23
  24 #define FLOAT           long double
  25 #define FLT             LDBL
  26 #ifdef USE_WIDE_CHAR
  27 # define STRTOF         wcstold_l
  28 # define __STRTOF       __wcstold_l
  29 #else
  30 # define STRTOF         strtold_l
  31 # define __STRTOF       __strtold_l
  32 #endif
  33 #define MPN2FLOAT       __mpn_construct_long_double
  34 #define FLOAT_HUGE_VAL  HUGE_VALL
  35 #define SET_MANTISSA(flt, mant) \
  36   do { union ieee854_long_double u;                                           \
  37        u.d = (flt);                                                           \
  38        if ((mant & 0x7fffffffffffffffULL) == 0)                               \
  39          mant = 0x4000000000000000ULL;                                        \
  40        u.ieee.mantissa0 = (((mant) >> 32) & 0x7fffffff) | 0x80000000;         \
  41        u.ieee.mantissa1 = (mant) & 0xffffffff;                                \
  42        (flt) = u.d;                                                           \
  43   } while (0)
  44
  45 #include <stdlib/strtod_l.c>