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 #ifndef lint 17 static char rcsid[] = "$FreeBSD: src/lib/msun/src/s_finitef.c,v 1.6 2002/05/28 17:51:46 alfred Exp $"; 18 #endif 19 20 /* 21 * finitef(x) returns 1 is x is finite, else 0; 22 * no branching! 23 */ 24 25 #include "math.h" 26 #include "math_private.h" 27 28 int finitef(float x) 29 { 30 int32_t ix; 31 GET_FLOAT_WORD(ix,x); 32 return (int)((u_int32_t)((ix&0x7fffffff)-0x7f800000)>>31); 33 } 34
