| /* w_expl.c -- long double version of w_exp.c. |
| * Conversion to long double by Ulrich Drepper, |
| * Cygnus Support, drepper@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[] = "$NetBSD: $"; |
| #endif |
| |
| /* |
| * wrapper expl(x) |
| */ |
| |
| #include "math.h" |
| #include "math_private.h" |
| |
| #ifdef __STDC__ |
| static const long double |
| #else |
| static long double |
| #endif |
| o_threshold= 1.135652340629414394949193107797076489134e4, |
| /* 0x400C, 0xB17217F7, 0xD1CF79AC */ |
| u_threshold= -1.140019167866942050398521670162263001513e4; |
| /* 0x400C, 0xB220C447, 0x69C201E8 */ |
| |
| #ifdef __STDC__ |
| long double __expl(long double x) /* wrapper exp */ |
| #else |
| long double __expl(x) /* wrapper exp */ |
| long double x; |
| #endif |
| { |
| #ifdef _IEEE_LIBM |
| return __ieee754_expl(x); |
| #else |
| long double z; |
| z = __ieee754_expl(x); |
| if(_LIB_VERSION == _IEEE_) return z; |
| if(__finitel(x)) { |
| if(x>o_threshold) |
| return __kernel_standard(x,x,206); /* exp overflow */ |
| else if(x<u_threshold) |
| return __kernel_standard(x,x,207); /* exp underflow */ |
| } |
| return z; |
| #endif |
| } |
| hidden_def (__expl) |
| weak_alias (__expl, expl) |
