Mercurial > gnulib
view lib/modfl.c @ 40169:ecb43221748b
strtod, strtold: Work around HP-UX 11.31/ia64 bug.
* lib/strtod.c (STRTOD): When there is an extra character after the
exponent marker 'p', reparse the number.
* doc/posix-functions/strtod.texi: Document the HP-UX 11.31 bug.
* doc/posix-functions/strtold.texi: Likewise.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Fri, 01 Feb 2019 00:18:57 +0100 |
parents | b06060465f09 |
children |
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/* Get signed integer and fractional parts of a floating-point number. Copyright (C) 2012-2019 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. */ #include <config.h> /* Specification. */ #include <math.h> #if HAVE_SAME_LONG_DOUBLE_AS_DOUBLE long double modfl (long double x, long double *iptr) { double integer_part; double fractional_part = modf (x, &integer_part); *iptr = integer_part; return fractional_part; } #else long double modfl (long double x, long double *iptr) { if (isfinite (x)) { long double integer_part = truncl (x); *iptr = integer_part; return x - integer_part; } else { if (isinf (x)) { *iptr = x; return 1.0L / x; } else /* isnanl (x) */ { *iptr = x; return x; } } } #endif