/* wf_cosh.c -- float version of w_cosh.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. * ==================================================== */ /* * wrapper coshf(x) */ #include "fdlibm.h" #include <errno.h> #ifdef __STDC__ float coshf(float x) /* wrapper coshf */ #else float coshf(x) /* wrapper coshf */ float x; #endif { #ifdef _IEEE_LIBM return __ieee754_coshf(x); #else float z; struct exception exc; z = __ieee754_coshf(x); if(_LIB_VERSION == _IEEE_ || isnan(x)) return z; if(fabsf(x)>(float)8.9415985107e+01) { /* coshf(finite) overflow */ #ifndef HUGE_VAL #define HUGE_VAL inf double inf = 0.0; SET_HIGH_WORD(inf,0x7ff00000); /* set inf to infinite */ #endif exc.type = OVERFLOW; exc.name = "coshf"; exc.err = 0; exc.arg1 = exc.arg2 = (double)x; if (_LIB_VERSION == _SVID_) exc.retval = HUGE; else exc.retval = HUGE_VAL; if (_LIB_VERSION == _POSIX_) errno = ERANGE; else if (!matherr(&exc)) { errno = ERANGE; } if (exc.err != 0) errno = exc.err; return (float)exc.retval; } else return z; #endif } #ifdef _DOUBLE_IS_32BITS #ifdef __STDC__ double cosh(double x) #else double cosh(x) double x; #endif { return (double) coshf((float) x); } #endif /* defined(_DOUBLE_IS_32BITS) */