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Diffstat (limited to 'newlib/libm/math/sf_tan.c')
| -rw-r--r-- | newlib/libm/math/sf_tan.c | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/newlib/libm/math/sf_tan.c b/newlib/libm/math/sf_tan.c deleted file mode 100644 index 18c47a454..000000000 --- a/newlib/libm/math/sf_tan.c +++ /dev/null @@ -1,57 +0,0 @@ -/* sf_tan.c -- float version of s_tan.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__ - float tanf(float x) -#else - float tanf(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 <= 0x3f490fda) return __kernel_tanf(x,z,1); - - /* tan(Inf or NaN) is NaN */ - else if (!FLT_UWORD_IS_FINITE(ix)) return x-x; /* NaN */ - - /* argument reduction needed */ - else { - n = __ieee754_rem_pio2f(x,y); - return __kernel_tanf(y[0],y[1],1-((n&1)<<1)); /* 1 -- n even - -1 -- n odd */ - } -} - -#ifdef _DOUBLE_IS_32BITS - -#ifdef __STDC__ - double tan(double x) -#else - double tan(x) - double x; -#endif -{ - return (double) tanf((float) x); -} - -#endif /* defined(_DOUBLE_IS_32BITS) */ |