libc/newlib/libm/math/wf_cosh.c
Jeff Johnston 664f00763b 2009-07-09 Craig Howland <howland@LGSInnovations.com>
* libm/math/ef_scalb.c:  Replace isnanf() (pre-C99 function call) with
        isnan() (C99 macro).
        * libm/math/wf_log.c:  Ditto.
        * libm/math/wf_j0.c:  Ditto.
        * libm/math/wf_sqrt.c:  Ditto.
        * libm/math/wf_pow.c:  Ditto.
        * libm/math/wf_fmod.c:  Ditto.
        * libm/math/wf_remainder.c:  Ditto.
        * libm/math/wf_scalb.c:  Ditto.
        * libm/math/wf_atanh.c:  Ditto.
        * libm/math/wf_cosh.c:  Ditto.
        * libm/math/wf_acos.c:  Ditto.
        * libm/math/wf_acosh.c:  Ditto.
        * libm/math/wf_jn.c:  Ditto.
        * libm/math/wf_log10.c:  Ditto.
        * libm/math/wf_asin.c:  Ditto.
        * libm/math/wf_j1.c:  Ditto.
        * libm/common/sf_isnan.c:  Add #include <ieeefp.h>, fix comment.
        * libm/common/sf_isinf.c:  Add #include <ieeefp.h>, adjust comment to
        match that from s_isinf.c.
        * libc/include/machine/ieeefp.h:  Simplify isinf and isnan macros to
        remove un-necessary extension use (in a similar manner to as was
        recently done in math.h).
        * libc/include/math.h:  Remove isnanf and isinff prototypes (are in
        ieeefp.h).
        * libm/machine/spu/sf_isinf.c:  Fix comment (remove <math.h>).
2009-07-09 17:04:56 +00:00

79 lines
1.6 KiB
C

/* 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) */