88b4890352
gdb/ChangeLog: 2013-06-21 Will Newton <will.newton@linaro.org> * gnulib/update-gnulib.sh(IMPORTED_GNULIB_MODULES): Add frexpl. * gnulib/aclocal.m4: Regenerate. * gnulib/config.in: Regenerate. * gnulib/configure: Regenerate. * gnulib/import/Makefile.am: Update. * gnulib/import/Makefile.in: Update. * gnulib/import/m4/gnulib-cache.m4: Update. * gnulib/import/m4/gnulib-comp.m4: Update. * gnulib/import/float+.h: Import. * gnulib/import/float.c: Import. * gnulib/import/float.in.h: Import. * gnulib/import/fpucw.h: Import. * gnulib/import/frexp.c: Import. * gnulib/import/frexpl.c: Import. * gnulib/import/isnan.c: Import. * gnulib/import/isnand-nolibm.h: Import. * gnulib/import/isnand.c: Import. * gnulib/import/isnanl-nolibm.h: Import. * gnulib/import/isnanl.c: Import. * gnulib/import/itold.c: Import. * gnulib/import/m4/exponentd.m4: Import. * gnulib/import/m4/exponentl.m4: Import. * gnulib/import/m4/float_h.m4: Import. * gnulib/import/m4/fpieee.m4: Import. * gnulib/import/m4/frexp.m4: Import. * gnulib/import/m4/frexpl.m4: Import. * gnulib/import/m4/isnand.m4: Import. * gnulib/import/m4/isnanl.m4: Import. * gnulib/import/m4/math_h.m4: Import. * gnulib/import/math.c: Import. * gnulib/import/math.in.h: Import.
33 lines
1.2 KiB
C
33 lines
1.2 KiB
C
/* Test for NaN that does not need libm.
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Copyright (C) 2007-2012 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#if HAVE_ISNANL_IN_LIBC
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/* Get declaration of isnan macro or (older) isnanl function. */
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# include <math.h>
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# if __GNUC__ >= 4
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/* GCC 4.0 and newer provides three built-ins for isnan. */
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# undef isnanl
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# define isnanl(x) __builtin_isnanl ((long double)(x))
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# elif defined isnan
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# undef isnanl
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# define isnanl(x) isnan ((long double)(x))
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# endif
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#else
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/* Test whether X is a NaN. */
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# undef isnanl
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# define isnanl rpl_isnanl
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extern int isnanl (long double x);
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#endif
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