Mercurial > octave-nkf
view scripts/specfun/pow2.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 | bb20384acf7b |
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## Copyright (C) 1995-2013 Kurt Hornik ## ## 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 {Mapping Function} {} pow2 (@var{x}) ## @deftypefnx {Mapping Function} {} pow2 (@var{f}, @var{e}) ## With one argument, computes ## @tex ## $2^x$ ## @end tex ## @ifnottex ## 2 .^ x ## @end ifnottex ## for each element of @var{x}. ## ## With two arguments, returns ## @tex ## $f \cdot 2^e$. ## @end tex ## @ifnottex ## f .* (2 .^ e). ## @end ifnottex ## @seealso{log2, nextpow2} ## @end deftypefn ## Author: AW <Andreas.Weingessel@ci.tuwien.ac.at> ## Created: 17 October 1994 ## Adapted-By: jwe function y = pow2 (f, e) if (nargin == 1) y = 2 .^ f; elseif (nargin == 2) y = f .* (2 .^ e); else print_usage (); endif endfunction %!test %! x = [3, 0, -3]; %! v = [8, 1, .125]; %! assert (pow2 (x), v, sqrt (eps)); %!test %! x = [3, 0, -3, 4, 0, -4, 5, 0, -5]; %! y = [-2, -2, -2, 1, 1, 1, 3, 3, 3]; %! z = x .* (2 .^ y); %! assert (pow2 (x,y), z, sqrt (eps)); %!error pow2 ()