mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-27 19:53:32 +08:00
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
2.3 KiB
C
81 lines
2.3 KiB
C
/* Copyright (C) 2005-2015 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Richard Henderson <rth@redhat.com>, 2005.
|
|
|
|
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 <stdbool.h>
|
|
#include <math.h>
|
|
#include <complex.h>
|
|
|
|
attribute_hidden
|
|
long double _Complex
|
|
__multc3 (long double a, long double b, long double c, long double d)
|
|
{
|
|
long double ac, bd, ad, bc, x, y;
|
|
|
|
ac = a * c;
|
|
bd = b * d;
|
|
ad = a * d;
|
|
bc = b * c;
|
|
|
|
x = ac - bd;
|
|
y = ad + bc;
|
|
|
|
if (isnan (x) && isnan (y))
|
|
{
|
|
/* Recover infinities that computed as NaN + iNaN. */
|
|
bool recalc = 0;
|
|
if (isinf (a) || isinf (b))
|
|
{
|
|
/* z is infinite. "Box" the infinity and change NaNs in
|
|
the other factor to 0. */
|
|
a = __copysignl (isinf (a) ? 1 : 0, a);
|
|
b = __copysignl (isinf (b) ? 1 : 0, b);
|
|
if (isnan (c)) c = __copysignl (0, c);
|
|
if (isnan (d)) d = __copysignl (0, d);
|
|
recalc = 1;
|
|
}
|
|
if (isinf (c) || isinf (d))
|
|
{
|
|
/* w is infinite. "Box" the infinity and change NaNs in
|
|
the other factor to 0. */
|
|
c = __copysignl (isinf (c) ? 1 : 0, c);
|
|
d = __copysignl (isinf (d) ? 1 : 0, d);
|
|
if (isnan (a)) a = __copysignl (0, a);
|
|
if (isnan (b)) b = __copysignl (0, b);
|
|
recalc = 1;
|
|
}
|
|
if (!recalc
|
|
&& (isinf (ac) || isinf (bd)
|
|
|| isinf (ad) || isinf (bc)))
|
|
{
|
|
/* Recover infinities from overflow by changing NaNs to 0. */
|
|
if (isnan (a)) a = __copysignl (0, a);
|
|
if (isnan (b)) b = __copysignl (0, b);
|
|
if (isnan (c)) c = __copysignl (0, c);
|
|
if (isnan (d)) d = __copysignl (0, d);
|
|
recalc = 1;
|
|
}
|
|
if (recalc)
|
|
{
|
|
x = INFINITY * (a * c - b * d);
|
|
y = INFINITY * (a * d + b * c);
|
|
}
|
|
}
|
|
|
|
return x + I * y;
|
|
}
|