fixes for host gcc 4.6.1
[zpugcc/jano.git] / toolchain / gcc / newlib / libm / mathfp / sf_tgamma.c
blobf4d1456343b92b3889afed0c19853a5009b457ee
1 /* w_gammaf.c -- float version of w_gamma.c.
2 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
3 */
5 /*
6 * ====================================================
7 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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 * ====================================================
16 #include <math.h>
17 #include <errno.h>
19 #ifdef __STDC__
20 float tgammaf(float x)
21 #else
22 float tgammaf(x)
23 float x;
24 #endif
26 float y;
27 int local_signgam;
28 y = gammaf_r(x,&local_signgam);
29 if (local_signgam < 0) y = -y;
30 #ifdef _IEEE_LIBM
31 return y;
32 #else
33 if(_LIB_VERSION == _IEEE_) return y;
35 if(!finitef(y)&&finitef(x)) {
36 if(floorf(x)==x&&x<=(float)0.0)
38 /* tgammaf pole */
39 errno = EDOM;
40 return HUGE_VAL;
42 else
44 /* tgammaf overflow */
45 errno = ERANGE;
46 return HUGE_VAL;
49 return y;
50 #endif