| /* s_finitef.c -- float version of s_finite.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. |
| * ==================================================== |
| */ |
| |
| /* |
| * finitef(x) returns 1 is x is finite, else 0; |
| * no branching! |
| */ |
| |
| #include "math.h" |
| #include "math_private.h" |
| |
| int __finitef(float x) |
| { |
| u_int32_t ix; |
| |
| GET_FLOAT_WORD(ix, x); |
| /* Finite numbers have at least one zero bit in exponent. */ |
| /* All other numbers will result in 0xffffffff after OR: */ |
| return (ix | 0x807fffff) != 0xffffffff; |
| } |
| libm_hidden_def(__finitef) |