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//@HEADER
// ************************************************************************
//
// Kokkos v. 4.0
// Copyright (2022) National Technology & Engineering
// Solutions of Sandia, LLC (NTESS).
//
// Under the terms of Contract DE-NA0003525 with NTESS,
// the U.S. Government retains certain rights in this software.
//
// Part of Kokkos, under the Apache License v2.0 with LLVM Exceptions.
// See https://kokkos.org/LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//@HEADER
#include <gtest/gtest.h>
#include <impl/Kokkos_CheckedIntegerOps.hpp>
#include <limits>
namespace {
TEST(TEST_CATEGORY, checked_integer_operations_multiply_overflow) {
{
auto result = 1u;
auto is_overflow = Kokkos::Impl::multiply_overflow(1u, 2u, result);
EXPECT_EQ(result, 2u);
EXPECT_FALSE(is_overflow);
}
{
auto result = 1u;
auto is_overflow = Kokkos::Impl::multiply_overflow(
std::numeric_limits<unsigned>::max(), 2u, result);
EXPECT_TRUE(is_overflow);
}
}
TEST(TEST_CATEGORY_DEATH, checked_integer_operations_multiply_overflow_abort) {
::testing::FLAGS_gtest_death_test_style = "threadsafe";
{
auto result = Kokkos::Impl::multiply_overflow_abort(1u, 2u);
EXPECT_EQ(result, 2u);
}
{
ASSERT_DEATH(Kokkos::Impl::multiply_overflow_abort(
std::numeric_limits<unsigned>::max(), 2u),
"Arithmetic overflow detected.");
}
}
} // namespace
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