glibc/sysdeps/ieee754/ldbl-128/printf_fphex.c
Ulrich Drepper ec751a23c0 Update.
1999-10-31  Ulrich Drepper  <drepper@cygnus.com>

	* includes/features.h: Replace __USE_ISOC9X by __USE_ISOC99 and also
	recognize _ISOC99_SOURCE.
	* libio/stdio.h: Likewise.
	* math/math.h: Likewise.
	* math/bits/mathcalls.h: Likewise.
	* math/stdio.h: Likewise.
	* stdlib/stdlib.h: Likewise.
	* sysdeps/alpha/fpu/bits/mathdef.h: Likewise.
	* sysdeps/alpha/fpu/bits/mathinline.h: Likewise.
	* sysdeps/arm/bits/huge_val.h: Likewise.
	* sysdeps/generic/bits/mathdef.h: Likewise.
	* sysdeps/i386/bits/huge_val.h: Likewise.
	* sysdeps/i386/fpu/bits/mathdef.h: Likewise.
	* sysdeps/i386/fpu/bits/mathinline.h: Likewise.
	* sysdeps/ieee754/bits/huge_val.h: Likewise.
	* sysdeps/m68k/bits/huge_val.h: Likewise.
	* sysdeps/m68k/fpu/bits/mathdef.h: Likewise.
	* sysdeps/m68k/fpu/bits/mathinline.h: Likewise.
	* sysdeps/powerpc/bits/mathdef.h: Likewise.
	* sysdeps/powerpc/bits/mathinline.h: Likewise.
	* sysdeps/sparc/fpu/bits/mathdef.h: Likewise.
	* sysdeps/sparc/fpu/bits/mathinline.h: Likewise.
	* sysdeps/sparc/sparc32/fpu/bits/huge_val.h: Likewise.
	* wcsmbs/wchar.h: Likewise.

	* sysdeps/powerpc/bits/mathdef.h: Moved to...
	* sysdeps/powerpc/fpu/bits/mathdef.h: ...here.
	* sysdeps/powerpc/bits/mathinline.h: Moved to...
	* sysdeps/powerpc/fpu/bits/mathinline.h: ...here.

1999-10-31  Andreas Jaeger  <aj@suse.de>

	* manual/math.texi (Errors in Math Functions): Correct TeX code.

1999-10-31  Andreas Jaeger  <aj@suse.de>

	* math/libm-test.inc:  Change comments to use ISO C99 instead of
	ISO C9x.
	* math/w_lgamma.c: Likewise.
	* math/w_lgammaf.c: Likewise.
	* math/w_lgammal.c: Likewise.
	* math/test-fenv.c: Likewise.
	* sysdeps/ieee754/ldbl-96/printf_fphex.c: Likewise.
	* sysdeps/ieee754/ldbl-128/printf_fphex.c: Likewise.
	* sysdeps/generic/printf_fphex.c: Likewise.

1999-10-31  Andreas Jaeger  <aj@suse.de>

	* manual/arith.texi (Parsing of Floats): Remove C from ISO C comment.

	* manual/math.texi: Change ISO C9x to ISO C99.
	* manual/startup.texi: Likewise.
	* manual/stdio.texi: Likewise.

1999-10-31  Andreas Jaeger  <aj@suse.de>

	* manual/arith.texi: Change ISO C9x to ISO C99.
	* manual/time.texi (Low-Level Time String Parsing): Likewise.
1999-10-31 17:37:43 +00:00

85 lines
3.4 KiB
C

/* Print floating point number in hexadecimal notation according to
ISO C99.
Copyright (C) 1997, 1998, 1999 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'); \
else \
numstr = _itoa (num1, numbuf + sizeof numbuf, 16, \
info->spec == 'A'); \
\
while (numstr > numbuf + (sizeof numbuf - 64 / 4)) \
*--numstr = '0'; \
\
if (sizeof (unsigned long int) > 6) \
numstr = _itoa_word (num0, numstr, 16, info->spec == 'A'); \
else \
numstr = _itoa (num0, numstr, 16, info->spec == 'A'); \
\
/* Fill with zeroes. */ \
while (numstr > numbuf + (sizeof numbuf - 112 / 4)) \
*--numstr = '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>