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78 lines
1.8 KiB
C++
78 lines
1.8 KiB
C++
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// This file is part of Eigen, a lightweight C++ template library
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// for linear algebra.
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//
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// Copyright (C) 2014 Benoit Steiner <benoit.steiner.goog@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla
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// Public License v. 2.0. If a copy of the MPL was not distributed
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// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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#include "main.h"
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#include <Eigen/CXX11/Tensor>
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static void test_signed_32bit()
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{
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for (int32_t i = 1; i < 25000; ++i) {
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const Eigen::internal::TensorIntDivisor<int32_t> div(i);
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for (int32_t j = 0; j < 25000; ++j) {
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const int32_t fast_div = j / div;
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const int32_t slow_div = j / i;
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VERIFY_IS_EQUAL(fast_div, slow_div);
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}
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}
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}
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static void test_unsigned_32bit()
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{
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for (uint32_t i = 1; i < 25000; ++i) {
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const Eigen::internal::TensorIntDivisor<uint32_t> div(i);
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for (uint32_t j = 0; j < 25000; ++j) {
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const uint32_t fast_div = j / div;
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const uint32_t slow_div = j / i;
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VERIFY_IS_EQUAL(fast_div, slow_div);
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}
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}
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}
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static void test_signed_64bit()
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{
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for (int64_t i = 2; i < 25000; ++i) {
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const Eigen::internal::TensorIntDivisor<int64_t> div(i);
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for (int64_t j = 0; j < 25000; ++j) {
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const int64_t fast_div = j / div;
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const int64_t slow_div = j / i;
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VERIFY_IS_EQUAL(fast_div, slow_div);
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}
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}
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}
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static void test_unsigned_64bit()
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{
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for (uint64_t i = 2; i < 25000; ++i) {
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const Eigen::internal::TensorIntDivisor<uint64_t> div(i);
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for (uint64_t j = 0; j < 25000; ++j) {
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const uint64_t fast_div = j / div;
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const uint64_t slow_div = j / i;
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VERIFY_IS_EQUAL(fast_div, slow_div);
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}
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}
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}
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void test_cxx11_tensor_intdiv()
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{
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CALL_SUBTEST(test_signed_32bit());
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CALL_SUBTEST(test_unsigned_32bit());
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CALL_SUBTEST(test_signed_64bit());
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CALL_SUBTEST(test_unsigned_64bit());
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}
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