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- /* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
- /* w_acoshf.c -- float version of w_acosh.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.
- * ====================================================
- *
- */
-
- #if defined(LIBM_SCCS) && !defined(lint)
- static char rcsid[] = "$Id: w_acoshf.c,v 1.1 1994/08/10 20:33:28 jtc Exp $";
- #endif
-
- /*
- * wrapper acoshf(x)
- */
-
- #include "math.h"
- #include "math_private.h"
-
- #ifdef __STDC__
- float acoshf(float x) /* wrapper acoshf */
- #else
- float acoshf(x) /* wrapper acoshf */
- float x;
- #endif
- {
- #ifdef _IEEE_LIBM
- return __ieee754_acoshf(x);
- #else
- float z;
- z = __ieee754_acoshf(x);
- if(_LIB_VERSION == _IEEE_ || isnanf(x)) return z;
- if(x<(float)1.0) {
- /* acosh(x<1) */
- return (float)__kernel_standard((double)x,(double)x,129);
- } else
- return z;
- #endif
- }
-