/* Print floating point number in hexadecimal notation according to ISO C99. Copyright (C) 1997, 1998, 1999, 2000, 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #define PRINT_FPHEX_LONG_DOUBLE \ do { \ /* We have 112 bits of mantissa plus one implicit digit. Since \ 112 bits are representable without rest using hexadecimal \ digits we use only the implicit digits for the number before \ the decimal point. */ \ unsigned long long int num0, num1; \ \ assert (sizeof (long double) == 16); \ \ num0 = (((unsigned long long int) fpnum.ldbl.ieee.mantissa0) << 32 \ | fpnum.ldbl.ieee.mantissa1); \ num1 = (((unsigned long long int) fpnum.ldbl.ieee.mantissa2) << 32 \ | fpnum.ldbl.ieee.mantissa3); \ \ zero_mantissa = (num0|num1) == 0; \ \ if (sizeof (unsigned long int) > 6) \ { \ numstr = _itoa_word (num1, numbuf + sizeof numbuf, 16, \ info->spec == 'A'); \ wnumstr = _itowa_word (num1, \ wnumbuf + sizeof (wnumbuf) / sizeof (wchar_t),\ 16, info->spec == 'A'); \ } \ else \ { \ numstr = _itoa (num1, numbuf + sizeof numbuf, 16, \ info->spec == 'A'); \ wnumstr = _itowa (num1, \ wnumbuf + sizeof (wnumbuf) / sizeof (wchar_t), \ 16, info->spec == 'A'); \ } \ \ while (numstr > numbuf + (sizeof numbuf - 64 / 4)) \ { \ *--numstr = '0'; \ *--wnumstr = L'0'; \ } \ \ if (sizeof (unsigned long int) > 6) \ { \ numstr = _itoa_word (num0, numstr, 16, info->spec == 'A'); \ wnumstr = _itowa_word (num0, wnumstr, 16, info->spec == 'A'); \ } \ else \ { \ numstr = _itoa (num0, numstr, 16, info->spec == 'A'); \ wnumstr = _itowa (num0, wnumstr, 16, info->spec == 'A'); \ } \ \ /* Fill with zeroes. */ \ while (numstr > numbuf + (sizeof numbuf - 112 / 4)) \ { \ *--numstr = '0'; \ *--wnumstr = L'0'; \ } \ \ leading = fpnum.ldbl.ieee.exponent == 0 ? '0' : '1'; \ \ exponent = fpnum.ldbl.ieee.exponent; \ \ if (exponent == 0) \ { \ if (zero_mantissa) \ expnegative = 0; \ else \ { \ /* This is a denormalized number. */ \ expnegative = 1; \ exponent = IEEE854_LONG_DOUBLE_BIAS - 1; \ } \ } \ else if (exponent >= IEEE854_LONG_DOUBLE_BIAS) \ { \ expnegative = 0; \ exponent -= IEEE854_LONG_DOUBLE_BIAS; \ } \ else \ { \ expnegative = 1; \ exponent = -(exponent - IEEE854_LONG_DOUBLE_BIAS); \ } \ } while (0) #include