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      1 /* Split a 'long double' into fraction and mantissa, for hexadecimal printf.
      2    Copyright (C) 2007, 2009-2012 Free Software Foundation, Inc.
      3 
      4    This program is free software: you can redistribute it and/or modify
      5    it under the terms of the GNU General Public License as published by
      6    the Free Software Foundation; either version 3 of the License, or
      7    (at your option) any later version.
      8 
      9    This program 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
     12    GNU General Public License for more details.
     13 
     14    You should have received a copy of the GNU General Public License
     15    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
     16 
     17 /* Write a finite, positive number x as
     18      x = mantissa * 2^exp
     19    where exp >= LDBL_MIN_EXP - 1,
     20          mantissa < 2.0,
     21          if x is not a denormalized number then mantissa >= 1.0.
     22    Store exp in *EXPPTR and return mantissa.  */
     23 extern long double printf_frexpl (long double x, int *expptr);
     24