Mercurial > octave-nkf
view scripts/specfun/factorial.m @ 18840:4a4edf0f2077 nkf-ready
fix LLVM 3.4 build (bug #41061)
* configure.ac: Call new functions OCTAVE_LLVM_RAW_FD_OSTREAM_API and
OCTAVE_LLVM_LEGACY_PASSMANAGER_API, check for Verifier.h header file
* m4/acinclude.m4 (OCTAVE_LLVM_RAW_FD_OSTREAM_API): New function to
detect correct raw_fd_ostream API
* m4/acinclude.m4 (OCTAVE_LLVM_LEGACY_PASSMANAGER_API): New function
to detect legacy passmanager API
* libinterp/corefcn/jit-util.h: Use legacy passmanager namespace if
necessary
* libinterp/corefcn/pt-jit.h (class tree_jit): Use legacy passmanager
class if necessary
* libinterp/corefcn/pt-jit.cc: Include appropriate header files
* libinterp/corefcn/pt-jit.cc (tree_jit::initialize): Use legacy
passmanager if necessary
* libinterp/corefcn/pt-jit.cc (tree_jit::optimize): Use correct API
* libinterp/corefcn/jit-typeinfo.cc: Include appropriate header file
author | Stefan Mahr <dac922@gmx.de> |
---|---|
date | Sun, 11 May 2014 02:28:33 +0200 |
parents | d63878346099 |
children | 4403c0cce439 |
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## Copyright (C) 2000-2013 Paul Kienzle ## ## This file is part of Octave. ## ## Octave is free software; you can redistribute it and/or modify it ## under the terms of the GNU General Public License as published by ## the Free Software Foundation; either version 3 of the License, or (at ## your option) any later version. ## ## Octave is distributed in the hope that it will be useful, but ## WITHOUT ANY WARRANTY; without even the implied warranty of ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ## General Public License for more details. ## ## You should have received a copy of the GNU General Public License ## along with Octave; see the file COPYING. If not, see ## <http://www.gnu.org/licenses/>. ## -*- texinfo -*- ## @deftypefn {Function File} {} factorial (@var{n}) ## Return the factorial of @var{n} where @var{n} is a positive integer. If ## @var{n} is a scalar, this is equivalent to @code{prod (1:@var{n})}. For ## vector or matrix arguments, return the factorial of each element in the ## array. For non-integers see the generalized factorial function ## @code{gamma}. ## @seealso{prod, gamma} ## @end deftypefn function x = factorial (n) if (nargin != 1) print_usage (); elseif (any (n(:) < 0 | n(:) != fix (n(:)))) error ("factorial: N must all be non-negative integers"); endif x = round (gamma (n+1)); endfunction %!assert (factorial (5), prod (1:5)) %!assert (factorial ([1,2;3,4]), [1,2;6,24]) %!assert (factorial (70), exp (sum (log (1:70))), -128*eps) %!fail ("factorial (5.5)", "must all be non-negative integers") %!fail ("factorial (-3)", "must all be non-negative integers")