1 /* sf_finite.c -- float version of s_finite.c.
2  * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@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 /*
17  * finitef(x) returns 1 is x is finite, else 0;
18  * no branching!
19  */
20 
21 #include "fdlibm.h"
22 
finitef(float x)23 int finitef(float x)
24 {
25 	__int32_t ix;
26 	GET_FLOAT_WORD(ix,x);
27 	ix &= 0x7fffffff;
28 	return (FLT_UWORD_IS_FINITE(ix));
29 }
30 
31 #if defined(_HAVE_ALIAS_ATTRIBUTE)
32 #ifndef __clang__
33 #pragma GCC diagnostic ignored "-Wmissing-attributes"
34 #endif
35 __strong_reference(finitef, __finitef);
36 #else
37 
38 int
__finitef(float x)39 __finitef(float x)
40 {
41     return finitef(x);
42 }
43 #endif
44 
45 _MATH_ALIAS_i_f(finite)
46 _MATH_ALIAS_i_f(__finite)
47