1: /* Compatibility functions for floating point formatting, reentrant,
    2:    long double versions.
    3:    Copyright (C) 1996, 1997, 1999 Free Software Foundation, Inc.
    4:    This file is part of the GNU C Library.
    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, write to the Free
   18:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   19:    02111-1307 USA.  */
   20: 
   21: #include <float.h>
   22: 
   23: #define FLOAT_TYPE long double
   24: #define FUNC_PREFIX q
   25: #define FLOAT_FMT_FLAG "L"
   26: #define FLOAT_NAME_EXT l
   27: #define FLOAT_MIN_10_EXP LDBL_MIN_10_EXP
   28: #if LDBL_MANT_DIG == 64
   29: # define NDIGIT_MAX 21
   30: #elif LDBL_MANT_DIG == 53
   31: # define NDIGIT_MAX 17
   32: #elif LDBL_MANT_DIG == 113
   33: # define NDIGIT_MAX 36
   34: #elif LDBL_MANT_DIG == 106
   35: # define NDIGIT_MAX 34
   36: #elif LDBL_MANT_DIG == 56
   37: # define NDIGIT_MAX 18
   38: #else
   39: /* See IEEE 854 5.6, table 2 for this formula.  Unfortunately we need a
   40:    compile time constant here, so we cannot use it.  */
   41: # error "NDIGIT_MAX must be precomputed"
   42: # define NDIGIT_MAX (lrint (ceil (M_LN2 / M_LN10 * LDBL_MANT_DIG + 1.0)))
   43: #endif
   44: #if LDBL_MIN_10_EXP == -37
   45: # define FLOAT_MIN_10_NORM      1.0e-37L
   46: #elif LDBL_MIN_10_EXP == -291
   47: # define FLOAT_MIN_10_NORM      1.0e-291L
   48: #elif LDBL_MIN_10_EXP == -307
   49: # define FLOAT_MIN_10_NORM      1.0e-307L
   50: #elif LDBL_MIN_10_EXP == -4931
   51: # define FLOAT_MIN_10_NORM      1.0e-4931L
   52: #else
   53: /* libc can't depend on libm.  */
   54: # error "FLOAT_MIN_10_NORM must be precomputed"
   55: # define FLOAT_MIN_10_NORM      exp10l (LDBL_MIN_10_EXP)
   56: #endif
   57: 
   58: #include "efgcvt_r.c"