diff options
Diffstat (limited to 'math/w_lgammaf_main.c')
| -rw-r--r-- | math/w_lgammaf_main.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/math/w_lgammaf_main.c b/math/w_lgammaf_main.c new file mode 100644 index 0000000000..ba7ff0e573 --- /dev/null +++ b/math/w_lgammaf_main.c @@ -0,0 +1,44 @@ +/* w_lgammaf.c -- float version of w_lgamma.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. + * ==================================================== + */ + +#include <math.h> +#include <math_private.h> + +#include <lgamma-compat.h> + +#if BUILD_LGAMMA +float +LGFUNC (__lgammaf) (float x) +{ + float y = CALL_LGAMMA (float, __ieee754_lgammaf_r, x); + if(__builtin_expect(!isfinite(y), 0) + && isfinite(x) && _LIB_VERSION != _IEEE_) + return __kernel_standard_f(x, x, + __floorf(x)==x&&x<=0.0f + ? 115 /* lgamma pole */ + : 114); /* lgamma overflow */ + + return y; +} +# if USE_AS_COMPAT +compat_symbol (libm, __lgammaf_compat, lgammaf, LGAMMA_OLD_VER); +# else +versioned_symbol (libm, __lgammaf, lgammaf, LGAMMA_NEW_VER); +# endif +# if GAMMA_ALIAS +strong_alias (LGFUNC (__lgammaf), __gammaf) +weak_alias (__gammaf, gammaf) +# endif +#endif |