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author | Ulrich Drepper <drepper@redhat.com> | 1999-07-14 00:54:57 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 1999-07-14 00:54:57 +0000 |
commit | abfbdde177c3a7155070dda1b2cdc8292054cc26 (patch) | |
tree | e021306b596381fbf8311d2b7eb294e918ff17c8 /sysdeps/libm-ieee754/s_sincos.c | |
parent | 86421aa57ecfd70963ae66848bd6a6dd3b8e0fe6 (diff) | |
download | glibc-abfbdde177c3a7155070dda1b2cdc8292054cc26.tar.gz glibc-abfbdde177c3a7155070dda1b2cdc8292054cc26.tar.xz glibc-abfbdde177c3a7155070dda1b2cdc8292054cc26.zip |
Update.
Diffstat (limited to 'sysdeps/libm-ieee754/s_sincos.c')
-rw-r--r-- | sysdeps/libm-ieee754/s_sincos.c | 78 |
1 files changed, 0 insertions, 78 deletions
diff --git a/sysdeps/libm-ieee754/s_sincos.c b/sysdeps/libm-ieee754/s_sincos.c deleted file mode 100644 index 5bc564ba5b..0000000000 --- a/sysdeps/libm-ieee754/s_sincos.c +++ /dev/null @@ -1,78 +0,0 @@ -/* Compute sine and cosine of argument. - Copyright (C) 1997 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public License as - published by the Free Software Foundation; either version 2 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 - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <math.h> - -#include "math_private.h" - - -void -__sincos (double x, double *sinx, double *cosx) -{ - int32_t ix; - - /* High word of x. */ - GET_HIGH_WORD (ix, x); - - /* |x| ~< pi/4 */ - ix &= 0x7fffffff; - if (ix <= 0x3fe921fb) - { - *sinx = __kernel_sin (x, 0.0, 0); - *cosx = __kernel_cos (x, 0.0); - } - else if (ix>=0x7ff00000) - { - /* sin(Inf or NaN) is NaN */ - *sinx = *cosx = x - x; - } - else - { - /* Argument reduction needed. */ - double y[2]; - int n; - - n = __ieee754_rem_pio2 (x, y); - switch (n & 3) - { - case 0: - *sinx = __kernel_sin (y[0], y[1], 1); - *cosx = __kernel_cos (y[0], y[1]); - break; - case 1: - *sinx = __kernel_cos (y[0], y[1]); - *cosx = -__kernel_sin (y[0], y[1], 1); - break; - case 2: - *sinx = -__kernel_sin (y[0], y[1], 1); - *cosx = -__kernel_cos (y[0], y[1]); - break; - default: - *sinx = -__kernel_cos (y[0], y[1]); - *cosx = __kernel_sin (y[0], y[1], 1); - break; - } - } -} -weak_alias (__sincos, sincos) -#ifdef NO_LONG_DOUBLE -strong_alias (__sincos, __sincosl) -weak_alias (__sincos, sincosl) -#endif |