[thirdparty/glibc.git] / sysdeps / ieee754 / ldbl-128 / printf_fphex.c

/* Print floating point number in hexadecimal notation according to
   ISO C99.
   Copyright (C) 1997, 1998, 1999, 2000 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 Library General Public License as
   published by the Free Software Foundation; either version 2 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  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 <sysdeps/generic/printf_fphex.c>
Commit	Line	Data
abfbdde1	1	/* Print floating point number in hexadecimal notation according to
ec751a23	2	ISO C99.
faf2289f	3	Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
abfbdde1 UD	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 Library General Public License as
	8	published by the Free Software Foundation; either version 2 of the
	9	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	Library General Public License for more details.
	15
	16	You should have received a copy of the GNU Library General Public
	17	License along with the GNU C Library; see the file COPYING.LIB. If not,
	18	write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
	19	Boston, MA 02111-1307, USA. */
	20
	21	#define PRINT_FPHEX_LONG_DOUBLE \
	22	do { \
	23	/* We have 112 bits of mantissa plus one implicit digit. Since \
	24	112 bits are representable without rest using hexadecimal \
	25	digits we use only the implicit digits for the number before \
	26	the decimal point. */ \
	27	unsigned long long int num0, num1; \
	28	\
	29	assert (sizeof (long double) == 16); \
	30	\
	31	num0 = (((unsigned long long int) fpnum.ldbl.ieee.mantissa0) << 32 \
	32	\| fpnum.ldbl.ieee.mantissa1); \
	33	num1 = (((unsigned long long int) fpnum.ldbl.ieee.mantissa2) << 32 \
	34	\| fpnum.ldbl.ieee.mantissa3); \
	35	\
	36	zero_mantissa = (num0\|num1) == 0; \
	37	\
	38	if (sizeof (unsigned long int) > 6) \
faf2289f UD	39	{ \
	40	numstr = _itoa_word (num1, numbuf + sizeof numbuf, 16, \
	41	info->spec == 'A'); \
8a0759d1	42	wnumstr = _itowa_word (num1, \
b15cb495 UD	43	wnumbuf + sizeof (wnumbuf) / sizeof (wchar_t),\
b15cb495 UD	44	16, info->spec == 'A'); \
faf2289f	45	} \
abfbdde1	46	else \
faf2289f UD	47	{ \
	48	numstr = _itoa (num1, numbuf + sizeof numbuf, 16, \
	49	info->spec == 'A'); \
b15cb495 UD	50	wnumstr = _itowa (num1, \
	51	wnumbuf + sizeof (wnumbuf) / sizeof (wchar_t), \
	52	16, info->spec == 'A'); \
faf2289f	53	} \
abfbdde1 UD	54	\
abfbdde1 UD	55	while (numstr > numbuf + (sizeof numbuf - 64 / 4)) \
faf2289f UD	56	{ \
	57	*--numstr = '0'; \
	58	*--wnumstr = L'0'; \
	59	} \
abfbdde1 UD	60	\
abfbdde1 UD	61	if (sizeof (unsigned long int) > 6) \
faf2289f UD	62	{ \
	63	numstr = _itoa_word (num0, numstr, 16, info->spec == 'A'); \
	64	wnumstr = _itowa_word (num0, wnumstr, 16, info->spec == 'A'); \
	65	} \
abfbdde1	66	else \
faf2289f UD	67	{ \
	68	numstr = _itoa (num0, numstr, 16, info->spec == 'A'); \
	69	wnumstr = _itowa (num0, wnumstr, 16, info->spec == 'A'); \
	70	} \
abfbdde1 UD	71	\
	72	/* Fill with zeroes. */ \
	73	while (numstr > numbuf + (sizeof numbuf - 112 / 4)) \
faf2289f UD	74	{ \
	75	*--numstr = '0'; \
	76	*--wnumstr = L'0'; \
	77	} \
abfbdde1 UD	78	\
	79	leading = fpnum.ldbl.ieee.exponent == 0 ? '0' : '1'; \
	80	\
	81	exponent = fpnum.ldbl.ieee.exponent; \
	82	\
	83	if (exponent == 0) \
	84	{ \
	85	if (zero_mantissa) \
	86	expnegative = 0; \
	87	else \
	88	{ \
	89	/* This is a denormalized number. */ \
	90	expnegative = 1; \
	91	exponent = IEEE854_LONG_DOUBLE_BIAS - 1; \
	92	} \
	93	} \
	94	else if (exponent >= IEEE854_LONG_DOUBLE_BIAS) \
	95	{ \
	96	expnegative = 0; \
	97	exponent -= IEEE854_LONG_DOUBLE_BIAS; \
	98	} \
	99	else \
	100	{ \
	101	expnegative = 1; \
	102	exponent = -(exponent - IEEE854_LONG_DOUBLE_BIAS); \
	103	} \
	104	} while (0)
	105
	106	#include <sysdeps/generic/printf_fphex.c>