/* 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)