w_lgammal.c

glibc 2.9,最新版的C语言库函数

/* file: lgammal.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
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//

// History
//==============================================================
// 08/15/02: Initial version
//
/*
//   FUNCTIONS:    long double  lgammal(long double x)
//                 long double  gammal(long double x)
//                 Natural logarithm of GAMMA function
*/

#include "libm_support.h"


extern double __libm_lgammal(long double /*x*/, int* /*signgam*/, int /*signgamsz*/);


long double __ieee754_lgammal(long double x)
{
#ifdef __POSIX__
    extern int    signgam;
#else
    int    signgam;
#endif
    return __libm_lgammal(x, &signgam, sizeof(signgam));
}
weak_alias (__ieee754_lgammal, lgammal)

long double __ieee754_gammal(long double x)
{
#ifdef __POSIX__
    extern int    signgam;
#else
    int    signgam;
#endif
    return __libm_lgammal(x, &signgam, sizeof(signgam));
}
weak_alias (__ieee754_gammal, gammal)