diff options
Diffstat (limited to 'newlib/libm/math/sf_cos.c')
| -rw-r--r-- | newlib/libm/math/sf_cos.c | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/newlib/libm/math/sf_cos.c b/newlib/libm/math/sf_cos.c deleted file mode 100644 index 4c0a9a5..0000000 --- a/newlib/libm/math/sf_cos.c +++ /dev/null @@ -1,68 +0,0 @@ -/* sf_cos.c -- float version of s_cos.c. - * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. - */ - -/* - * ==================================================== - * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. - * - * Developed at SunPro, a Sun Microsystems, Inc. business. - * Permission to use, copy, modify, and distribute this - * software is freely granted, provided that this notice - * is preserved. - * ==================================================== - */ - -#include "fdlibm.h" - -#ifdef __STDC__ -static const float one=1.0; -#else -static float one=1.0; -#endif - -#ifdef __STDC__ - float cosf(float x) -#else - float cosf(x) - float x; -#endif -{ - float y[2],z=0.0; - __int32_t n,ix; - - GET_FLOAT_WORD(ix,x); - - /* |x| ~< pi/4 */ - ix &= 0x7fffffff; - if(ix <= 0x3f490fd8) return __kernel_cosf(x,z); - - /* cos(Inf or NaN) is NaN */ - else if (!FLT_UWORD_IS_FINITE(ix)) return x-x; - - /* argument reduction needed */ - else { - n = __ieee754_rem_pio2f(x,y); - switch(n&3) { - case 0: return __kernel_cosf(y[0],y[1]); - case 1: return -__kernel_sinf(y[0],y[1],1); - case 2: return -__kernel_cosf(y[0],y[1]); - default: - return __kernel_sinf(y[0],y[1],1); - } - } -} - -#ifdef _DOUBLE_IS_32BITS - -#ifdef __STDC__ - double cos(double x) -#else - double cos(x) - double x; -#endif -{ - return (double) cosf((float) x); -} - -#endif /* defined(_DOUBLE_IS_32BITS) */ |