aboutsummaryrefslogtreecommitdiff
path: root/math/w_scalb.c
diff options
context:
space:
mode:
Diffstat (limited to 'math/w_scalb.c')
-rw-r--r--math/w_scalb.c80
1 files changed, 0 insertions, 80 deletions
diff --git a/math/w_scalb.c b/math/w_scalb.c
deleted file mode 100644
index 8354115512..0000000000
--- a/math/w_scalb.c
+++ /dev/null
@@ -1,80 +0,0 @@
-/* Copyright (C) 2011-2017 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@gmail.com>, 2011.
-
- 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 <errno.h>
-#include <math.h>
-#include <math_private.h>
-
-
-static double
-__attribute__ ((noinline))
-sysv_scalb (double x, double fn)
-{
- double z = __ieee754_scalb (x, fn);
-
- if (__glibc_unlikely (isinf (z)))
- {
- if (isfinite (x))
- return __kernel_standard (x, fn, 32); /* scalb overflow */
- else
- __set_errno (ERANGE);
- }
- else if (__builtin_expect (z == 0.0, 0) && z != x)
- return __kernel_standard (x, fn, 33); /* scalb underflow */
-
- return z;
-}
-
-
-/* Wrapper scalb */
-double
-__scalb (double x, double fn)
-{
- if (__glibc_unlikely (_LIB_VERSION == _SVID_))
- return sysv_scalb (x, fn);
- else
- {
- double z = __ieee754_scalb (x, fn);
-
- if (__glibc_unlikely (!isfinite (z) || z == 0.0))
- {
- if (isnan (z))
- {
- if (!isnan (x) && !isnan (fn))
- __set_errno (EDOM);
- }
- else if (isinf (z))
- {
- if (!isinf (x) && !isinf (fn))
- __set_errno (ERANGE);
- }
- else
- {
- /* z == 0. */
- if (x != 0.0 && !isinf (fn))
- __set_errno (ERANGE);
- }
- }
- return z;
- }
-}
-weak_alias (__scalb, scalb)
-#ifdef NO_LONG_DOUBLE
-strong_alias (__scalb, __scalbl)
-weak_alias (__scalb, scalbl)
-#endif