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