w_coshf.c (1043B)
1 /* w_coshf.c -- float version of w_cosh.c. 2 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. 3 */ 4 5 /* 6 * ==================================================== 7 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. 8 * 9 * Developed at SunPro, a Sun Microsystems, Inc. business. 10 * Permission to use, copy, modify, and distribute this 11 * software is freely granted, provided that this notice 12 * is preserved. 13 * ==================================================== 14 */ 15 16 #ifndef lint 17 static char rcsid[] = "$FreeBSD: src/lib/msun/src/w_coshf.c,v 1.7 2002/05/28 18:15:04 alfred Exp $"; 18 #endif 19 20 /* 21 * wrapper coshf(x) 22 */ 23 24 #include "math.h" 25 #include "math_private.h" 26 27 float 28 coshf(float x) /* wrapper coshf */ 29 { 30 #ifdef _IEEE_LIBM 31 return __ieee754_coshf(x); 32 #else 33 float z; 34 z = __ieee754_coshf(x); 35 if(_LIB_VERSION == _IEEE_ || isnanf(x)) return z; 36 if(fabsf(x)>(float)8.9415985107e+01) { 37 /* cosh overflow */ 38 return (float)__kernel_standard((double)x,(double)x,105); 39 } else 40 return z; 41 #endif 42 }