fe8c2b33ae
with isinf, and remove the unused inlines __isinf_ns(l/f), __isnan(f) and __finite(f).
2015-09-18 Wilco Dijkstra <wdijkstr@arm.com>
* include/math.h: Remove __isinf_ns, __isinf_nsf, __isinf_nsl.
* math/Makefile: Remove isinf_ns.c.
* math/divtc3.c (__divtc3): Replace __isinf_nsl with isinf.
* math/multc3.c (__multc3): Likewise.
* math/s_casin.c (__casin): Likewise.
* math/s_casinf.c (__casinf): Likewise.
* math/s_casinl.c (__casinl): Likewise.
* math/s_cproj.c (__cproj): Likewise.
* math/s_cprojf.c (__cprojf): Likewise.
* math/s_cprojl.c (__cprofl): Likewise.
* math/s_ctan.c (__ctan): Likewise.
* math/s_ctanf.c (__ctanf): Likewise.
* math/s_ctanh.c (__ctanh): Likewise.
* math/s_ctanhf.c (__ctanhf): Likewise.
* math/s_ctanhl.c (__ctanhl): Likewise.
* math/s_ctanl.c (__ctanl): Likewise.
* math/w_fmod.c (__fmod): Likewise.
* math/w_fmodf.c (__fmodf): Likewise.
* math/w_fmodl.c (_fmodl): Likewise.
* math/w_remainder.c (__remainder): Likewise.
* math/w_remainderf.c (__remainderf): Likewise.
* math/w_remainderl.c (__remainderl): Likewise.
* math/w_scalb.c (__scalb): Likewise.
* math/w_scalbf.c (__scalbf): Likewise.
* math/w_scalbl.c (__scalbl): Likewise.
* sysdeps/ieee754/dbl-64/s_isinf_ns.c: Deleted file.
* sysdeps/ieee754/dbl-64/s_sincos.c (__sincos): Replace __isinf_ns
with isinf.
* sysdeps/ieee754/dbl-64/wordsize-64/math_private.h: Deleted file.
* sysdeps/ieee754/dbl-64/wordsize-64/s_isinf_ns.c: Deleted file.
* sysdeps/ieee754/flt-32/e_exp2f.c (__ieee754_exp2f): Replace
__isinf_nsf with isinf.
* sysdeps/ieee754/flt-32/math_private.h: Deleted file.
* sysdeps/ieee754/flt-32/s_isinf_nsf.c: Deleted file.
* sysdeps/ieee754/ldbl-128/s_isinf_nsl.c: Deleted file.
* sysdeps/ieee754/ldbl-128/s_sincosl.c (__sincosl): Replace __isinf_nsl
with isinf.
* sysdeps/ieee754/ldbl-128ibm/s_cprojl.c(__cprojll): Replace
__isinf_nsl with isinf.
* sysdeps/ieee754/ldbl-128ibm/s_ctanl.c(__ctanl): Replace __isinf_nsl
with isinf.
* sysdeps/ieee754/ldbl-128ibm/s_isinf_nsl.c: Deleted file.
* sysdeps/ieee754/ldbl-128ibm/s_sincosl.c (__sincosl): Replace
__isinf_nsl with isinf.
* sysdeps/ieee754/ldbl-96/s_isinf_nsl.c: Deleted file.
* sysdeps/ieee754/ldbl-96/s_sincosl.c (__sincosl): Replace __isinf_nsl
with isinf.
81 lines
2.0 KiB
C
81 lines
2.0 KiB
C
/* Copyright (C) 2011-2015 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@gmail.com>, 2011.
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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, see
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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <math.h>
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#include <math_private.h>
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static double
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__attribute__ ((noinline))
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sysv_scalb (double x, double fn)
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{
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double z = __ieee754_scalb (x, fn);
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if (__glibc_unlikely (isinf (z)))
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{
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if (isfinite (x))
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return __kernel_standard (x, fn, 32); /* scalb overflow */
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else
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__set_errno (ERANGE);
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}
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else if (__builtin_expect (z == 0.0, 0) && z != x)
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return __kernel_standard (x, fn, 33); /* scalb underflow */
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return z;
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}
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/* Wrapper scalb */
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double
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__scalb (double x, double fn)
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{
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if (__glibc_unlikely (_LIB_VERSION == _SVID_))
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return sysv_scalb (x, fn);
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else
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{
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double z = __ieee754_scalb (x, fn);
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if (__glibc_unlikely (!isfinite (z) || z == 0.0))
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{
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if (isnan (z))
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{
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if (!isnan (x) && !isnan (fn))
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__set_errno (EDOM);
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}
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else if (isinf (z))
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{
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if (!isinf (x) && !isinf (fn))
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__set_errno (ERANGE);
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}
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else
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{
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/* z == 0. */
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if (x != 0.0 && !isinf (fn))
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__set_errno (ERANGE);
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}
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}
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return z;
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}
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}
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weak_alias (__scalb, scalb)
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#ifdef NO_LONG_DOUBLE
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strong_alias (__scalb, __scalbl)
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weak_alias (__scalb, scalbl)
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#endif
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