glibc/sysdeps/ieee754/ldbl-96/printf_fphex.c

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/* Print floating point number in hexadecimal notation according to
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.
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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. */
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#ifndef LONG_DOUBLE_DENORM_BIAS
# define LONG_DOUBLE_DENORM_BIAS (IEEE854_LONG_DOUBLE_BIAS - 1)
#endif
#define PRINT_FPHEX_LONG_DOUBLE \
do { \
/* The "strange" 80 bit format on ix86 and m68k has an explicit \
leading digit in the 64 bit mantissa. */ \
unsigned long long int num; \
\
assert (sizeof (long double) == 12); \
\
num = (((unsigned long long int) fpnum.ldbl.ieee.mantissa0) << 32 \
| fpnum.ldbl.ieee.mantissa1); \
\
zero_mantissa = num == 0; \
\
if (sizeof (unsigned long int) > 6) \
numstr = _itoa_word (num, numbuf + sizeof numbuf, 16, \
info->spec == 'A'); \
else \
numstr = _itoa (num, numbuf + sizeof numbuf, 16, info->spec == 'A'); \
\
/* Fill with zeroes. */ \
while (numstr > numbuf + (sizeof numbuf - 64 / 4)) \
*--numstr = '0'; \
\
/* We use a full nibble for the leading digit. */ \
leading = *numstr++; \
\
/* We have 3 bits from the mantissa in the leading nibble. \
Therefore we are here using `IEEE854_LONG_DOUBLE_BIAS + 3'. */ \
exponent = fpnum.ldbl.ieee.exponent; \
\
if (exponent == 0) \
{ \
if (zero_mantissa) \
expnegative = 0; \
else \
{ \
/* This is a denormalized number. */ \
expnegative = 1; \
/* This is a hook for the m68k long double format, where the \
exponent bias is the same for normalized and denormalized \
numbers. */ \
exponent = LONG_DOUBLE_DENORM_BIAS + 3; \
} \
} \
else if (exponent >= IEEE854_LONG_DOUBLE_BIAS + 3) \
{ \
expnegative = 0; \
exponent -= IEEE854_LONG_DOUBLE_BIAS + 3; \
} \
else \
{ \
expnegative = 1; \
exponent = -(exponent - (IEEE854_LONG_DOUBLE_BIAS + 3)); \
} \
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} while (0)
#include <sysdeps/generic/printf_fphex.c>