diff options
Diffstat (limited to 'newlib/libm/math/sf_asinh.c')
| -rw-r--r-- | newlib/libm/math/sf_asinh.c | 66 |
1 files changed, 0 insertions, 66 deletions
diff --git a/newlib/libm/math/sf_asinh.c b/newlib/libm/math/sf_asinh.c deleted file mode 100644 index 4688ea8c1..000000000 --- a/newlib/libm/math/sf_asinh.c +++ /dev/null @@ -1,66 +0,0 @@ -/* sf_asinh.c -- float version of s_asinh.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 -#else -static float -#endif -one = 1.0000000000e+00, /* 0x3F800000 */ -ln2 = 6.9314718246e-01, /* 0x3f317218 */ -huge= 1.0000000000e+30; - -#ifdef __STDC__ - float asinhf(float x) -#else - float asinhf(x) - float x; -#endif -{ - float t,w; - __int32_t hx,ix; - GET_FLOAT_WORD(hx,x); - ix = hx&0x7fffffff; - if(!FLT_UWORD_IS_FINITE(ix)) return x+x; /* x is inf or NaN */ - if(ix< 0x31800000) { /* |x|<2**-28 */ - if(huge+x>one) return x; /* return x inexact except 0 */ - } - if(ix>0x4d800000) { /* |x| > 2**28 */ - w = __ieee754_logf(fabsf(x))+ln2; - } else if (ix>0x40000000) { /* 2**28 > |x| > 2.0 */ - t = fabsf(x); - w = __ieee754_logf((float)2.0*t+one/(__ieee754_sqrtf(x*x+one)+t)); - } else { /* 2.0 > |x| > 2**-28 */ - t = x*x; - w =log1pf(fabsf(x)+t/(one+__ieee754_sqrtf(one+t))); - } - if(hx>0) return w; else return -w; -} - -#ifdef _DOUBLE_IS_32BITS - -#ifdef __STDC__ - double asinh(double x) -#else - double asinh(x) - double x; -#endif -{ - return (double) asinhf((float) x); -} - -#endif /* defined(_DOUBLE_IS_32BITS) */ |