667b3ec15d
This patch extends update-quadmath.py to update fmaq from glibc. The issue in that function was that quadmath-imp.h had a struct in a union with mant_high and mant_low fields (up to 64-bit) whereas glibc has mantissa0, mantissa1, mantissa2 and mantissa3 (up to 32-bit). The patch changes those fields to be the same as in glibc, moving printf / strtod code that also uses those fields back to closer to the glibc form. This allows fmaq to be updated automatically from glibc (which brings in at least one bug fix from glibc from 2015). nanq was also using the mant_high field name, and had other issues: it only partly initialized the union from which a value was returned, and setting mant_high to 1 meant a signaling NaN would be returned rather than a quiet NaN. This patch fixes those issues as part of updating it to use the changed interfaces (but does not fix the issue of not using the argument). Bootstrapped with no regressions on x86_64-pc-linux-gnu. * quadmath-imp.h (ieee854_float128): Use mantissa0, mantissa1, mantissa2 and mantissa3 fields instead of mant_high and mant_low. Change nan field to ieee_nan. * update-quadmath.py (update_sources): Also update fmaq.c. * math/nanq.c (nanq): Use ieee_nan field of union. Zero-initialize f. Set quiet_nan field. * printf/flt1282mpn.c, printf/printf_fphex.c, strtod/mpn2flt128.c, strtod/strtoflt128.c: Use mantissa0, mantissa1, mantissa2 and mantissa3 fields. Use ieee_nan and quiet_nan field. * math/fmaq.c: Regenerate from glibc sources with update-quadmath.py. From-SVN: r265874
54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
/* Copyright (C) 1999, 2004 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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 Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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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 `__float128' version, `strtold'. */
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#define FLOAT __float128
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#define FLT FLT128
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#ifdef USE_WIDE_CHAR
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# define STRTOF wcstoflt128
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# define __STRTOF __wcstoflt128
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#else
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# define STRTOF strtoflt128
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# define __STRTOF __strtoflt128
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#endif
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#define MPN2FLOAT mpn_construct_float128
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#define FLOAT_HUGE_VAL HUGE_VALQ
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#define SET_MANTISSA(flt, mant) \
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do { ieee854_float128 u; \
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u.value = (flt); \
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u.ieee_nan.mantissa0 = 0; \
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u.ieee_nan.mantissa1 = 0; \
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u.ieee_nan.mantissa2 = (mant) >> 32; \
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u.ieee_nan.mantissa3 = (mant); \
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u.ieee_nan.quiet_nan = 1; \
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(flt) = u.value; \
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} while (0)
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static inline __attribute__((__always_inline__))
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__float128 ____strtoflt128_internal (const char *, char **, int);
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#include "strtod_l.c"
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__float128
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strtoflt128 (const char *nptr, char **endptr)
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{
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return ____STRTOF_INTERNAL (nptr, endptr, 0);
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}
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