88 lines
3.5 KiB
C++
88 lines
3.5 KiB
C++
// Copyright 2015 Conrad Sanderson (http://conradsanderson.id.au)
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// Copyright 2015 National ICT Australia (NICTA)
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// ------------------------------------------------------------------------
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#include <armadillo>
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#include "catch.hpp"
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using namespace arma;
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TEST_CASE("fn_flip_1")
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{
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mat A =
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"\
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0.061198 0.201990 0.019678 -0.493936 -0.126745 0.051408;\
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0.437242 0.058956 -0.149362 -0.045465 0.296153 0.035437;\
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-0.492474 -0.031309 0.314156 0.419733 0.068317 -0.454499;\
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0.336352 0.411541 0.458476 -0.393139 -0.135040 0.373833;\
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0.239585 -0.428913 -0.406953 -0.291020 -0.353768 0.258704;\
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";
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mat A_fliplr =
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"\
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0.051408 -0.126745 -0.493936 0.019678 0.201990 0.061198;\
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0.035437 0.296153 -0.045465 -0.149362 0.058956 0.437242;\
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-0.454499 0.068317 0.419733 0.314156 -0.031309 -0.492474;\
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0.373833 -0.135040 -0.393139 0.458476 0.411541 0.336352;\
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0.258704 -0.353768 -0.291020 -0.406953 -0.428913 0.239585;\
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";
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mat A_flipud =
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"\
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0.239585 -0.428913 -0.406953 -0.291020 -0.353768 0.258704;\
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0.336352 0.411541 0.458476 -0.393139 -0.135040 0.373833;\
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-0.492474 -0.031309 0.314156 0.419733 0.068317 -0.454499;\
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0.437242 0.058956 -0.149362 -0.045465 0.296153 0.035437;\
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0.061198 0.201990 0.019678 -0.493936 -0.126745 0.051408;\
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";
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mat two_times_A_fliplr =
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"\
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0.102816 -0.253490 -0.987872 0.039356 0.403980 0.122396;\
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0.070874 0.592306 -0.090930 -0.298724 0.117912 0.874484;\
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-0.908998 0.136634 0.839466 0.628312 -0.062618 -0.984948;\
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0.747666 -0.270080 -0.786278 0.916952 0.823082 0.672704;\
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0.517408 -0.707536 -0.582040 -0.813906 -0.857826 0.479170;\
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";
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mat two_times_A_flipud =
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"\
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0.479170 -0.857826 -0.813906 -0.582040 -0.707536 0.517408;\
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0.672704 0.823082 0.916952 -0.786278 -0.270080 0.747666;\
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-0.984948 -0.062618 0.628312 0.839466 0.136634 -0.908998;\
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0.874484 0.117912 -0.298724 -0.090930 0.592306 0.070874;\
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0.122396 0.403980 0.039356 -0.987872 -0.253490 0.102816;\
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";
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REQUIRE( accu(abs( fliplr(A) - A_fliplr )) == Approx(0.0) );
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REQUIRE( accu(abs( flipud(A) - A_flipud )) == Approx(0.0) );
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REQUIRE( accu(abs( (-fliplr(A)) + A_fliplr )) == Approx(0.0) );
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REQUIRE( accu(abs( (-flipud(A)) + A_flipud )) == Approx(0.0) );
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REQUIRE( accu(abs( fliplr(-A) + A_fliplr )) == Approx(0.0) );
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REQUIRE( accu(abs( flipud(-A) + A_flipud )) == Approx(0.0) );
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REQUIRE( accu(abs( 2*fliplr(A) - two_times_A_fliplr )) == Approx(0.0) );
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REQUIRE( accu(abs( 2*flipud(A) - two_times_A_flipud )) == Approx(0.0) );
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REQUIRE( accu(abs( fliplr(2*A) - two_times_A_fliplr )) == Approx(0.0) );
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REQUIRE( accu(abs( flipud(2*A) - two_times_A_flipud )) == Approx(0.0) );
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// REQUIRE_THROWS( );
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}
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