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armadillo-code/tests2/fn_conv.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_conv_1", "[conv]")
{
vec a = linspace<vec>(1,5,6);
vec b = 2*linspace<vec>(1,6,7);
vec c = conv(a,b);
vec d =
{
2.00000000000000,
7.26666666666667,
17.13333333333333,
32.93333333333334,
56.00000000000000,
87.66666666666667,
117.66666666666666,
134.00000000000003,
137.73333333333335,
127.53333333333336,
102.06666666666668,
60.00000000000000
};
REQUIRE( accu(abs(c - d)) == Approx(0.0).margin(0.001) );
}
TEMPLATE_TEST_CASE("fn_conv_fp_randu", "[conv]", TEST_FLOAT_TYPES)
{
typedef TestType eT;
// generalized version of the test above with higher tolerances
Col<eT> a = linspace<Col<eT>>(1,5,6);
Col<eT> b = 2*linspace<Col<eT>>(1,6,7);
Col<eT> c = conv(a,b);
Col<eT> d =
{
eT( 2.00),
eT( 7.27),
eT( 17.13),
eT( 32.93),
eT( 56.00),
eT( 87.67),
eT(117.67),
eT(134.00),
eT(137.73),
eT(127.53),
eT(102.07),
eT( 60.00)
};
for (uword i = 0; i < c.n_elem; ++i)
{
REQUIRE( eT(c[i]) == Approx(eT(d[i])).epsilon(eT(0.02)) );
}
}