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/*!
* \file
* \brief Commfunc test program
* \author Erik G. Larsson
*
* -------------------------------------------------------------------------
*
* Copyright (C) 1995-2012 (see AUTHORS file for a list of contributors)
*
* This file is part of IT++ - a C++ library of mathematical, signal
* processing, speech processing, and communications classes and functions.
*
* IT++ is free software: you can redistribute it and/or modify it under the
* terms of the GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* IT++ is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along
* with IT++. If not, see <http://www.gnu.org/licenses/>.
*
* -------------------------------------------------------------------------
*/
#include <itpp/itcomm.h>
#include "gtest/gtest.h"
using namespace std;
using namespace itpp;
TEST(CommFunc, All)
{
const double tol = 1e-9;
bmat expected_gray = "0 0 0 0 0;\
0 0 0 0 1;\
0 0 0 1 1;\
0 0 0 1 0;\
0 0 1 1 0;\
0 0 1 1 1;\
0 0 1 0 1;\
0 0 1 0 0;\
0 1 1 0 0;\
0 1 1 0 1;\
0 1 1 1 1;\
0 1 1 1 0;\
0 1 0 1 0;\
0 1 0 1 1;\
0 1 0 0 1;\
0 1 0 0 0;\
1 1 0 0 0;\
1 1 0 0 1;\
1 1 0 1 1;\
1 1 0 1 0;\
1 1 1 1 0;\
1 1 1 1 1;\
1 1 1 0 1;\
1 1 1 0 0;\
1 0 1 0 0;\
1 0 1 0 1;\
1 0 1 1 1;\
1 0 1 1 0;\
1 0 0 1 0;\
1 0 0 1 1;\
1 0 0 0 1;\
1 0 0 0 0";
ASSERT_TRUE(expected_gray == graycode(5));
RNG_reset(0);
bvec b1 = randb(10);
bvec b2 = randb(10);
ASSERT_EQ(8, hamming_distance(b1, b2));
ASSERT_EQ(7, weight(b1));
vec expected_water = "0 0 0.001";
vec actual_water = waterfilling("1 2 3", 0.001);
int i = 0;
for (i = 0; i < actual_water.length(); ++i) {
ASSERT_NEAR(expected_water[i], actual_water[i], tol);
}
expected_water = "0 0 0.010000000000000009";
actual_water = waterfilling("1 2 3", 0.01);
for (i = 0; i < actual_water.length(); ++i) {
ASSERT_NEAR(expected_water[i], actual_water[i], tol);
}
expected_water = "0 0 0.1";
actual_water = waterfilling("1 2 3", 0.1);
for (i = 0; i < actual_water.length(); ++i) {
ASSERT_NEAR(expected_water[i], actual_water[i], tol);
}
expected_water = "0 0.16666666666666663 0.33333333333333331";
actual_water = waterfilling("1 2 3", 0.5);
for (i = 0; i < actual_water.length(); ++i) {
ASSERT_NEAR(expected_water[i], actual_water[i], tol);
}
expected_water = "0 0.41666666666666652 0.58333333333333326";
actual_water = waterfilling("1 2 3", 1);
for (i = 0; i < actual_water.length(); ++i) {
ASSERT_NEAR(expected_water[i], actual_water[i], tol);
}
expected_water = "1.2777777777777777 1.7777777777777777 1.9444444444444444";
actual_water = waterfilling("1 2 3", 5);
for (i = 0; i < actual_water.length(); ++i) {
ASSERT_NEAR(expected_water[i], actual_water[i], tol);
}
expected_water = "32.944444444444443 33.444444444444443 33.611111111111107";
actual_water = waterfilling("1 2 3", 100);
for (i = 0; i < actual_water.length(); ++i) {
ASSERT_NEAR(expected_water[i], actual_water[i], tol);
}
}
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