1 /* s_finitef.c -- float version of s_finite.c. 2 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian (at) cygnus.com. 3 */ 4 5 /* 6 * ==================================================== 7 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. 8 * 9 * Developed at SunPro, a Sun Microsystems, Inc. business. 10 * Permission to use, copy, modify, and distribute this 11 * software is freely granted, provided that this notice 12 * is preserved. 13 * ==================================================== 14 */ 15 16 #include <sys/cdefs.h> 17 __FBSDID("$FreeBSD$"); 18 19 /* 20 * finitef(x) returns 1 is x is finite, else 0; 21 * no branching! 22 */ 23 24 #include "math.h" 25 #include "math_private.h" 26 27 int finitef(float x) 28 { 29 int32_t ix; 30 GET_FLOAT_WORD(ix,x); 31 return (int)((u_int32_t)((ix&0x7fffffff)-0x7f800000)>>31); 32 } 33
