| /* file: lgamma.c */ |
| |
| |
| // Copyright (c) 2002 Intel Corporation |
| // All rights reserved. |
| // |
| // Contributed 2002 by the Intel Numerics Group, Intel Corporation |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // |
| // * Redistributions in binary form must reproduce the above copyright |
| // notice, this list of conditions and the following disclaimer in the |
| // documentation and/or other materials provided with the distribution. |
| // |
| // * The name of Intel Corporation may not be used to endorse or promote |
| // products derived from this software without specific prior written |
| // permission. |
| |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR ITS |
| // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| // OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY OR TORT (INCLUDING |
| // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| // |
| // Intel Corporation is the author of this code, and requests that all |
| // problem reports or change requests be submitted to it directly at |
| // http://www.intel.com/software/products/opensource/libraries/num.htm. |
| // |
| // |
| |
| // History |
| //============================================================== |
| // 02/04/02: Initial version |
| // 02/22/02: Removed lgammaf/gammaf |
| // |
| /* |
| // FUNCTIONS: double lgamma(double x) |
| // double gamma(double x) |
| // Natural logarithm of GAMMA function |
| */ |
| |
| #include "libm_support.h" |
| |
| #include <math.h> |
| #include <math_private.h> |
| |
| #include <lgamma-compat.h> |
| |
| extern double __libm_lgamma(double /*x*/, int* /*signgam*/, int /*signgamsz*/); |
| |
| #if BUILD_LGAMMA |
| double LGFUNC (lgamma) (double x) |
| { |
| return CALL_LGAMMA (double, __libm_lgamma, x); |
| } |
| # if USE_AS_COMPAT |
| compat_symbol (libm, __lgamma_compat, lgamma, LGAMMA_OLD_VER); |
| # else |
| versioned_symbol (libm, __ieee754_lgamma, lgamma, LGAMMA_NEW_VER); |
| libm_alias_double_other (__ieee754_lgamma, lgamma) |
| # endif |
| # if GAMMA_ALIAS |
| strong_alias (LGFUNC (lgamma), __ieee754_gamma) |
| weak_alias (__ieee754_gamma, gamma) |
| # endif |
| #endif |
