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Serenity Operating System
1/*
2 * Copyright (c) 2021, the SerenityOS developers.
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 */
6
7#include <LibTest/TestCase.h>
8
9#include <AK/BitCast.h>
10
11template<typename A, typename B>
12void check_cast_both_ways(A const& a, B const& b)
13{
14 EXPECT_EQ((bit_cast<A, B>(b)), a);
15 EXPECT_EQ((bit_cast<B, A>(a)), b);
16}
17
18TEST_CASE(double_int_conversion)
19{
20 check_cast_both_ways(static_cast<u64>(0), 0.0);
21 check_cast_both_ways(static_cast<u64>(1) << 63, -0.0);
22 check_cast_both_ways(static_cast<u64>(0x4172f58bc0000000), 19880124.0);
23}