Line data    Source code

       1             : !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
       2             : !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
       3             : !!!!                                                                                                                            !!!!
       4             : !!!!    ParaMonte: Parallel Monte Carlo and Machine Learning Library.                                                           !!!!
       5             : !!!!                                                                                                                            !!!!
       6             : !!!!    Copyright (C) 2012-present, The Computational Data Science Lab                                                          !!!!
       7             : !!!!                                                                                                                            !!!!
       8             : !!!!    This file is part of the ParaMonte library.                                                                             !!!!
       9             : !!!!                                                                                                                            !!!!
      10             : !!!!    LICENSE                                                                                                                 !!!!
      11             : !!!!                                                                                                                            !!!!
      12             : !!!!       https://github.com/cdslaborg/paramonte/blob/main/LICENSE.md                                                          !!!!
      13             : !!!!                                                                                                                            !!!!
      14             : !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
      15             : !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
      16             : 
      17             : !>  \brief
      18             : !>  This include file contains implementations of the procedures in module [pm_mathFactorial](@ref pm_mathFactorial).
      19             : !>
      20             : !>  \finmain
      21             : !>
      22             : !>  \author
      23             : !>  \FatemehBagheri, Sunday 11:23 PM, September 19, 2021, Dallas, TX
      24             : 
      25             : !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
      26             : 
      27             : #if     getFactorial_ENABLED && IK_ENABLED
      28             :         integer(IKC) :: i
      29          44 :         CHECK_ASSERTION(__LINE__, 0_IKC <= n, SK_"@getFactorial(): The condition `0 <= n` must hold. n = "//getStr(n))
      30           5 :         factorial = 1_IKC
      31         209 :         do i = 2_IKC, n
      32         209 :             factorial = i * factorial
      33             :         end do
      34             : #elif   getLogFactorial_ENABLED && RK_ENABLED
      35          34 :         CHECK_ASSERTION(__LINE__, 0._RKC <= x, SK_"@getLogFactorial(): The input `0. <= x` must hold. x = "//getStr(x))
      36         102 :         CHECK_ASSERTION(__LINE__, x == anint(x), \
      37             :         SK_"@getLogFactorial(): The condition `x == anint(x)` must hold (`x` must be awhole number). x, anint(x) = "//getStr([x, anint(x)]))
      38          34 :         logFactorial = log_gamma(x + 1._RKC)
      39             : #else
      40             : #error  "Unrecognized interface."
      41             : #endif