diff options
| author | Thomas Fitzsimmons <fitzsim@redhat.com> | 2002-06-07 21:59:57 +0000 |
|---|---|---|
| committer | Thomas Fitzsimmons <fitzsim@redhat.com> | 2002-06-07 21:59:57 +0000 |
| commit | 0953fe640f177b565578ed7ecc77169ec1a914fa (patch) | |
| tree | f63c2a55e4d0e5a067da91cea95ae88a7c15af7e /newlib/libm/math/w_tgamma.c | |
| parent | 2bd6505b3991588a15c865618e1edb76d4a6373c (diff) | |
| download | cygnal-0953fe640f177b565578ed7ecc77169ec1a914fa.tar.gz cygnal-0953fe640f177b565578ed7ecc77169ec1a914fa.tar.bz2 cygnal-0953fe640f177b565578ed7ecc77169ec1a914fa.zip | |
* libm/common/s_fdim.c: New file.
* libm/common/s_fma.c: Likewise.
* libm/common/s_fmax.c: Likewise.
* libm/common/s_fmin.c: Likewise.
* libm/common/s_fpclassify.c: Likewise.
* libm/common/s_lrint.c: Likewise.
* libm/common/s_lround.c: Likewise.
* libm/common/s_nearbyint.c: Likewise.
* libm/common/s_remquo.c: Likewise.
* libm/common/s_round.c: Likewise.
* libm/common/s_scalbln.c: Likewise.
* libm/common/s_signbit.c: Likewise.
* libm/common/s_trunc.c: Likewise.
* libm/common/sf_fdim.c: Likewise.
* libm/common/sf_fma.c: Likewise.
* libm/common/sf_fmax.c: Likewise.
* libm/common/sf_fmin.c: Likewise.
* libm/common/sf_lrint.c: Likewise.
* libm/common/sf_lround.c: Likewise.
* libm/common/sf_nearbyint.c: Likewise.
* libm/common/sf_remquo.c: Likewise.
* libm/common/sf_round.c: Likewise.
* libm/common/sf_scalbln.c: Likewise.
* libm/common/sf_trunc.c: Likewise.
* libm/math/w_exp2.c: Likewise.
* libm/math/w_tgamma.c: Likewise.
* libm/math/wf_exp2.c: Likewise.
* libm/math/wf_tgamma.c: Likewise.
* libm/mathfp/s_exp2.c: Likewise.
* libm/mathfp/s_tgamma.c: Likewise.
* libm/mathfp/sf_exp2.c: Likewise.
* libm/mathfp/sf_tgamma.c: Likewise.
* libm/math/er_gamma.c: Fix return value.
* libm/math/erf_gamma.c: Likewise.
* libm/mathfp/er_gamma.c: Likewise.
* libm/mathfp/erf_gamma.c: Likewise.
* libc/include/math.h (!__STRICT_ANSI__): Include ISOC99-specific
declarations and macros.
Regenerated all Makefile.in, aclocal.m4 and configure files to
use new libtool macros in top-level libtool.m4
Diffstat (limited to 'newlib/libm/math/w_tgamma.c')
| -rw-r--r-- | newlib/libm/math/w_tgamma.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/newlib/libm/math/w_tgamma.c b/newlib/libm/math/w_tgamma.c new file mode 100644 index 000000000..f24a243bf --- /dev/null +++ b/newlib/libm/math/w_tgamma.c @@ -0,0 +1,44 @@ +/* @(#)w_gamma.c 5.1 93/09/24 */ +/* + * ==================================================== + * 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. + * ==================================================== + */ + +/* double gamma(double x) + * Return the logarithm of the Gamma function of x or the Gamma function of x, + * depending on the library mode. + */ + +#include "fdlibm.h" + +#ifdef __STDC__ + double tgamma(double x) +#else + double tgamma(x) + double x; +#endif +{ + double y; + int local_signgam; + y = __ieee754_gamma_r(x,&local_signgam); + if (local_signgam < 0) y = -y; +#ifdef _IEEE_LIBM + return y; +#else + if(_LIB_VERSION == _IEEE_) return y; + + if(!finite(y)&&finite(x)) { + if(floor(x)==x&&x<=0.0) + return __kernel_standard(x,x,41); /* tgamma pole */ + else + return __kernel_standard(x,x,40); /* tgamma overflow */ + } + return y; +#endif +} |