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/*
* This file is a part of TiledArray.
* Copyright (C) 2014 Virginia Tech
*
* This program 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.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
* Justus Calvin
* Department of Chemistry, Virginia Tech
*
* math_transpose.cpp
* Jun 10, 2014
*
*/
#include "TiledArray/math/transpose.h"
#include "tiledarray.h"
#include "unit_test_config.h"
struct TransposeFixture {
TransposeFixture() {}
~TransposeFixture() {}
}; // TransposeFixture
BOOST_FIXTURE_TEST_SUITE(transpose_suite, TransposeFixture)
BOOST_AUTO_TEST_CASE(copy) {
const std::size_t m = 20;
const std::size_t n = 25;
const std::size_t mn = m * n;
int* a = new int[mn];
int* b = new int[mn];
GlobalFixture::world->srand(1764);
for (std::size_t i = 0ul; i < mn; ++i)
a[i] = GlobalFixture::world->rand() % 42;
const auto no_op = [](const int& a) -> const int& { return a; };
const auto copy_op = [](int* b, const int a) { *b = a; };
for (std::size_t x = 1ul; x < m; ++x) {
for (std::size_t y = 1ul; y < n; ++y) {
std::fill_n(b, mn, 0);
TiledArray::math::transpose(no_op, copy_op, x, y, m, b, n, a);
for (std::size_t i = 0ul; i < m; ++i) {
for (std::size_t j = 0ul; j < n; ++j) {
if ((i < x) && (j < y)) {
BOOST_CHECK_EQUAL(b[j * m + i], a[i * n + j]);
} else {
BOOST_CHECK_EQUAL(b[j * m + i], 0);
}
}
}
}
}
delete[] a;
delete[] b;
}
BOOST_AUTO_TEST_CASE(unary) {
const std::size_t m = 20;
const std::size_t n = 25;
const std::size_t mn = m * n;
int* a = new int[mn];
int* b = new int[mn];
GlobalFixture::world->srand(1764);
for (std::size_t i = 0ul; i < mn; ++i)
a[i] = GlobalFixture::world->rand() % 42;
const auto op = [](const int arg) { return arg * 3; };
const auto copy_op = [](int* b, const int a) { *b = a; };
for (std::size_t x = 1ul; x < m; ++x) {
for (std::size_t y = 1ul; y < n; ++y) {
std::fill_n(b, mn, 0);
TiledArray::math::transpose(op, copy_op, x, y, m, b, n, a);
for (std::size_t i = 0ul; i < m; ++i) {
for (std::size_t j = 0ul; j < n; ++j) {
if ((i < x) && (j < y)) {
BOOST_CHECK_EQUAL(b[j * m + i], op(a[i * n + j]));
} else {
BOOST_CHECK_EQUAL(b[j * m + i], 0);
}
}
}
}
}
delete[] a;
delete[] b;
}
BOOST_AUTO_TEST_CASE(binary) {
const std::size_t m = 20;
const std::size_t n = 25;
const std::size_t mn = m * n;
int* a = new int[mn];
int* b = new int[mn];
int* c = new int[mn];
GlobalFixture::world->srand(1764);
for (std::size_t i = 0ul; i < mn; ++i)
a[i] = GlobalFixture::world->rand() % 42;
for (std::size_t i = 0ul; i < mn; ++i)
b[i] = GlobalFixture::world->rand() % 42;
const auto op = [](const int l, const int r) { return l - r; };
const auto copy_op = [](int* b, const int a) { *b = a; };
for (std::size_t x = 1ul; x < m; ++x) {
for (std::size_t y = 1ul; y < n; ++y) {
std::fill_n(c, mn, 0);
TiledArray::math::transpose(op, copy_op, x, y, m, c, n, a, b);
for (std::size_t i = 0ul; i < m; ++i) {
for (std::size_t j = 0ul; j < n; ++j) {
if ((i < x) && (j < y)) {
BOOST_CHECK_EQUAL(c[j * m + i], op(a[i * n + j], b[i * n + j]));
} else {
BOOST_CHECK_EQUAL(c[j * m + i], 0);
}
}
}
}
}
delete[] a;
delete[] b;
delete[] c;
}
BOOST_AUTO_TEST_SUITE_END()
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