1 /* w_expf.c -- float version of w_exp.c.
2 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
4 * $FreeBSD: src/lib/msun/src/w_expf.c,v 1.5 1999/08/28 00:07:00 peter Exp $
5 * $DragonFly: src/lib/msun/src/Attic/w_expf.c,v 1.3 2004/12/29 15:22:57 asmodai Exp $
9 * ====================================================
10 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
12 * Developed at SunPro, a Sun Microsystems, Inc. business.
13 * Permission to use, copy, modify, and distribute this
14 * software is freely granted, provided that this notice
16 * ====================================================
24 #include "math_private.h"
27 o_threshold= 8.8721679688e+01, /* 0x42b17180 */
28 u_threshold= -1.0397208405e+02; /* 0xc2cff1b5 */
31 expf(float x) /* wrapper expf */
34 return __ieee754_expf(x);
37 z = __ieee754_expf(x);
38 if(_LIB_VERSION == _IEEE_) return z;
42 return (float)__kernel_standard((double)x,(double)x,106);
43 else if(x<u_threshold)
45 return (float)__kernel_standard((double)x,(double)x,107);