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1998-12-28 Ulrich Drepper <drepper@cygnus.com> * stdlib/fpioconst.c: If __NO_LONG_DOUBLE_MATH don't define constants beyond range of double. * stdlib/fpioconst.h (_fpioconst_pow10): Reduce size according to fpioconst.c change. * stdlib/strtold.c: Fall back on double functions if __NO_LONG_DOUBLE_MATH. * stdlib/strtold_l.c: Likewise. * wcsmbs/wcstold.c: Likewise. * wcsmbs/wcstold_l.c: Likewise. * sysdeps/ieee754/ldbl2mpn.c: Don't generate code if __NO_LONG_DOUBLE_MATH. * sysdeps/ieee754/mpn2ldbl.c: Likewise. 1998-12-28 Geoff Keating <geoffk@ozemail.com.au> * sysdeps/powerpc/bits/endian.h: Use #warning, not #error, if the endianness can't be determined, for makedepend.
61 lines
2.1 KiB
C
61 lines
2.1 KiB
C
/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <math.h>
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#ifndef __NO_LONG_DOUBLE_MATH
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/* The actual implementation for all floating point sizes is in strtod.c.
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These macros tell it to produce the `long double' version, `wcstold'. */
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# define FLOAT long double
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# define FLT LDBL
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# ifdef USE_IN_EXTENDED_LOCALE_MODEL
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# define STRTOF __wcstold_l
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# else
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# define STRTOF wcstold
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# endif
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# define MPN2FLOAT __mpn_construct_long_double
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# define FLOAT_HUGE_VAL HUGE_VALL
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# define USE_WIDE_CHAR 1
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# define SET_MANTISSA(flt, mant) \
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do { union ieee854_long_double u; \
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u.d = (flt); \
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if ((mant & 0x7fffffffffffffffULL) == 0) \
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mant = 0x4000000000000000ULL; \
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u.ieee.mantissa0 = (((mant) >> 32) & 0x7fffffff) | 0x80000000; \
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u.ieee.mantissa1 = (mant) & 0xffffffff; \
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(flt) = u.d; \
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} while (0)
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# include <stdlib/strtod.c>
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#else
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/* There is no `long double' type, use the `double' implementations. */
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long double
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__wcstold_internal (const wchar_t *nptr, wchar_t **endptr, int group)
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{
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return __wcstod_internal (nptr, endptr, group);
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}
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long double
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wcstold (const wchar_t *nptr, wchar_t **endptr)
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{
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return __wcstod_internal (nptr, endptr, 0);
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}
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#endif
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