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author | Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com> | 2016-06-16 21:21:26 +0530 |
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committer | Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com> | 2016-06-16 21:37:45 +0530 |
commit | 41a359e22f3a85a570bd5fd94496d02959fe8394 (patch) | |
tree | b07e8945a063a025f34f92e910bf8fb1e2e220d5 /sysdeps/ieee754/ldbl-opt/nldbl-nextup.c | |
parent | f45eb078922a5c64343a8da2d17fec54c27f8704 (diff) | |
download | glibc-41a359e22f3a85a570bd5fd94496d02959fe8394.tar.gz glibc-41a359e22f3a85a570bd5fd94496d02959fe8394.tar.xz glibc-41a359e22f3a85a570bd5fd94496d02959fe8394.zip |
Add nextup and nextdown math functions
TS 18661 adds nextup and nextdown functions alongside nextafter to provide support for float128 equivalent to it. This patch adds nextupl, nextup, nextupf, nextdownl, nextdown and nextdownf to libm before float128 support. The nextup functions return the next representable value in the direction of positive infinity and the nextdown functions return the next representable value in the direction of negative infinity. These are currently enabled as GNU extensions.
Diffstat (limited to 'sysdeps/ieee754/ldbl-opt/nldbl-nextup.c')
-rw-r--r-- | sysdeps/ieee754/ldbl-opt/nldbl-nextup.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/sysdeps/ieee754/ldbl-opt/nldbl-nextup.c b/sysdeps/ieee754/ldbl-opt/nldbl-nextup.c new file mode 100644 index 0000000000..b557edffe3 --- /dev/null +++ b/sysdeps/ieee754/ldbl-opt/nldbl-nextup.c @@ -0,0 +1,27 @@ +/* Compatibility routine for IEEE double as long double for nextup. + Copyright (C) 2016 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include "nldbl-compat.h" + +/* Return the least floating-point number greater than X. */ +double +attribute_hidden +nextupl (double x) +{ + return nextup (x); +} |