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armadillo-code/tests2/fn_conj.cpp
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2025-07-07 04:00:20 +00:00

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// SPDX-License-Identifier: Apache-2.0
//
// Copyright 2015 Conrad Sanderson (http://conradsanderson.id.au)
// Copyright 2015 National ICT Australia (NICTA)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ------------------------------------------------------------------------
#include <armadillo>
#include "catch.hpp"
#include "utils.hpp"
using namespace arma;
TEST_CASE("fn_conj_1", "[conj]")
{
vec re = linspace<vec>(1,5,6);
vec im = 2*linspace<vec>(1,5,6);
cx_vec a = cx_vec(re,im);
cx_vec b = conj(a);
REQUIRE( accu(abs(real(b) - ( re))) == Approx(0.0).margin(0.001) );
REQUIRE( accu(abs(imag(b) - (-im))) == Approx(0.0).margin(0.001) );
}
TEST_CASE("fn_conj2", "[conj]")
{
cx_mat A = randu<cx_mat>(5,6);
cx_mat B = conj(A);
REQUIRE( all(vectorise(real(B) == real(A))) == true );
REQUIRE( all(vectorise(imag(B) == -imag(A))) == true );
}
TEMPLATE_TEST_CASE("fn_conj_fp_randu", "[conj]", TEST_CX_FLOAT_TYPES)
{
typedef TestType eT; // std::complex<something>
Mat<eT> A = randu<Mat<eT>>(50, 50);
Mat<eT> B = conj(A);
REQUIRE( all(vectorise(real(B) == real(A))) == true );
REQUIRE( all(vectorise(imag(B) == -imag(A))) == true );
}