139 lines
3.2 KiB
C++
139 lines
3.2 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("gen_zeros_1")
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{
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mat A(5,6,fill::zeros);
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REQUIRE( accu(A) == Approx(0.0) );
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REQUIRE( A.n_rows == 5 );
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REQUIRE( A.n_cols == 6 );
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mat B(5,6,fill::randu);
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B.zeros();
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REQUIRE( accu(B) == Approx(0.0) );
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REQUIRE( B.n_rows == 5 );
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REQUIRE( B.n_cols == 6 );
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mat C = zeros<mat>(5,6);
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REQUIRE( accu(C) == Approx(0.0) );
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REQUIRE( C.n_rows == 5 );
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REQUIRE( C.n_cols == 6 );
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mat D; D = zeros<mat>(5,6);
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REQUIRE( accu(D) == Approx(0.0) );
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REQUIRE( D.n_rows == 5 );
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REQUIRE( D.n_cols == 6 );
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mat E; E = 2*zeros<mat>(5,6);
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REQUIRE( accu(E) == Approx(0.0) );
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REQUIRE( E.n_rows == 5 );
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REQUIRE( E.n_cols == 6 );
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}
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TEST_CASE("gen_zeros_2")
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{
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mat A(5,6,fill::ones);
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A.col(1).zeros();
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REQUIRE( accu(A.col(0)) == Approx(double(A.n_rows)) );
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REQUIRE( accu(A.col(1)) == Approx(0.0) );
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REQUIRE( accu(A.col(2)) == Approx(double(A.n_rows)) );
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mat B(5,6,fill::ones);
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B.row(1).zeros();
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REQUIRE( accu(B.row(0)) == Approx(double(B.n_cols)) );
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REQUIRE( accu(B.row(1)) == Approx(0.0) );
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REQUIRE( accu(B.row(2)) == Approx(double(B.n_cols)) );
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mat C(5,6,fill::ones);
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C(span(1,3),span(1,4)).zeros();
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REQUIRE( accu(C.head_cols(1)) == Approx(double(5)) );
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REQUIRE( accu(C.head_rows(1)) == Approx(double(6)) );
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REQUIRE( accu(C.tail_cols(1)) == Approx(double(5)) );
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REQUIRE( accu(C.tail_rows(1)) == Approx(double(6)) );
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REQUIRE( accu(C(span(1,3),span(1,4))) == Approx(0.0) );
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mat D(5,6,fill::ones);
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D.diag().zeros();
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REQUIRE( accu(D.diag()) == Approx(0.0) );
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}
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TEST_CASE("gen_zeros_3")
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{
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mat A(5,6,fill::ones);
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uvec indices = { 2, 4, 6 };
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A(indices).zeros();
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REQUIRE( accu(A) == Approx(double(5*6-3)) );
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REQUIRE( A(0) == Approx(1.0) );
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REQUIRE( A(A.n_elem-1) == Approx(1.0) );
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REQUIRE( A(indices(0)) == Approx(0.0) );
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REQUIRE( A(indices(1)) == Approx(0.0) );
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REQUIRE( A(indices(2)) == Approx(0.0) );
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}
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TEST_CASE("gen_zeros_sp_mat")
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{
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SpMat<unsigned int> e(2, 2);
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e(0, 0) = 3.1;
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e(1, 1) = 2.2;
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e *= zeros<SpMat<unsigned int> >(2, 2);
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REQUIRE( e.n_nonzero == 0 );
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REQUIRE( (unsigned int) e(0, 0) == 0 );
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REQUIRE( (unsigned int) e(1, 0) == 0 );
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REQUIRE( (unsigned int) e(0, 1) == 0 );
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REQUIRE( (unsigned int) e(1, 1) == 0 );
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// Just test compilation here.
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e = zeros<SpMat<unsigned int> >(5, 5);
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e *= zeros<SpMat<unsigned int> >(5, 5);
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e %= zeros<SpMat<unsigned int> >(5, 5);
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}
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