/* Compute sine and cosine of argument. Copyright (C) 1997, 2001, 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper , 1997. 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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #include #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>=0x7ff00000) { /* sin(Inf or NaN) is NaN */ *sinx = *cosx = x - x; } else { *sinx = __sin (x); *cosx = __cos (x); } } weak_alias (__sincos, sincos) #ifdef NO_LONG_DOUBLE strong_alias (__sincos, __sincosl) weak_alias (__sincos, sincosl) #endif