75 lines
2.1 KiB
C++
75 lines
2.1 KiB
C++
// SPDX-License-Identifier: Apache-2.0
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//
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// 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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#include "utils.hpp"
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using namespace arma;
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TEMPLATE_TEST_CASE("fn_cumsum_1", "[cumsum]", TEST_FLOAT_TYPES)
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{
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typedef TestType eT;
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Col<eT> a = linspace<Col<eT>>(1,5,6);
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Row<eT> b = linspace<Row<eT>>(1,5,6);
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Col<eT> c = { eT(1.0000), eT(2.8000), eT(5.4000), eT(8.8000), eT(13.0000), eT(18.0000) };
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constexpr eT margin = is_blas_real<eT>::value ? eT(0.001) : eT(0.2);
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REQUIRE( accu(abs(cumsum(a) - c )) == Approx(0.0).margin(margin) );
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REQUIRE( accu(abs(cumsum(b) - c.t())) == Approx(0.0).margin(margin) );
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REQUIRE_THROWS( b = cumsum(a) );
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}
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TEST_CASE("fn_cumsum_2", "[cumsum]")
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{
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mat A =
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{
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{ -0.78838, 0.69298, 0.41084, 0.90142 },
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{ 0.49345, -0.12020, 0.78987, 0.53124 },
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{ 0.73573, 0.52104, -0.22263, 0.40163 }
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};
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mat B =
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{
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{ -0.78838, 0.69298, 0.41084, 0.90142 },
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{ -0.29493, 0.57278, 1.20071, 1.43266 },
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{ 0.44080, 1.09382, 0.97808, 1.83429 }
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};
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mat C =
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{
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{-0.78838, -0.09540, 0.31544, 1.21686 },
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{ 0.49345, 0.37325, 1.16312, 1.69436 },
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{ 0.73573, 1.25677, 1.03414, 1.43577 }
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};
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REQUIRE( accu(abs(cumsum(A) - B)) == Approx(0.0).margin(0.001) );
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REQUIRE( accu(abs(cumsum(A,0) - B)) == Approx(0.0).margin(0.001) );
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REQUIRE( accu(abs(cumsum(A,1) - C)) == Approx(0.0).margin(0.001) );
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}
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