1  /* file: lgammal.c */
       2  
       3  
       4  // Copyright (c) 2002 Intel Corporation
       5  // All rights reserved.
       6  //
       7  //
       8  // Redistribution and use in source and binary forms, with or without
       9  // modification, are permitted provided that the following conditions are
      10  // met:
      11  //
      12  // * Redistributions of source code must retain the above copyright
      13  // notice, this list of conditions and the following disclaimer.
      14  //
      15  // * Redistributions in binary form must reproduce the above copyright
      16  // notice, this list of conditions and the following disclaimer in the
      17  // documentation and/or other materials provided with the distribution.
      18  //
      19  // * The name of Intel Corporation may not be used to endorse or promote
      20  // products derived from this software without specific prior written
      21  // permission.
      22  
      23  //
      24  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
      25  // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
      26  // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
      27  // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR ITS
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      34  // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
      35  //
      36  // Intel Corporation is the author of this code, and requests that all
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      38  // http://www.intel.com/software/products/opensource/libraries/num.htm.
      39  //
      40  //
      41  
      42  // History
      43  //==============================================================
      44  // 08/15/02: Initial version
      45  //
      46  /*
      47  //   FUNCTIONS:    long double  lgammal(long double x)
      48  //                 long double  gammal(long double x)
      49  //                 Natural logarithm of GAMMA function
      50  */
      51  
      52  #include "libm_support.h"
      53  
      54  #include <math.h>
      55  #include <math_private.h>
      56  
      57  #include <lgamma-compat.h>
      58  
      59  extern double __libm_lgammal(long double /*x*/, int* /*signgam*/, int /*signgamsz*/);
      60  
      61  #if BUILD_LGAMMA
      62  long double LGFUNC (lgammal) (long double x)
      63  {
      64      return CALL_LGAMMA (long double, __libm_lgammal, x);
      65  }
      66  # if USE_AS_COMPAT
      67  compat_symbol (libm, __lgammal_compat, lgammal, LGAMMA_OLD_VER);
      68  # else
      69  versioned_symbol (libm, __ieee754_lgammal, lgammal, LGAMMA_NEW_VER);
      70  libm_alias_ldouble_other (__ieee754_lgamma, lgamma)
      71  # endif
      72  # if GAMMA_ALIAS
      73  strong_alias (LGFUNC (lgammal), __ieee754_gammal)
      74  weak_alias (__ieee754_gammal, gammal)
      75  # endif
      76  #endif