mirror of
https://github.com/dolphin-emu/dolphin.git
synced 2024-12-29 07:40:50 +01:00
29 lines
688 B
C++
29 lines
688 B
C++
// Copyright 2014 Dolphin Emulator Project
|
|
// Licensed under GPLv2+
|
|
// Refer to the license.txt file included.
|
|
|
|
#include <gtest/gtest.h>
|
|
|
|
#include "Common/MathUtil.h"
|
|
|
|
TEST(MathUtil, IntLog2)
|
|
{
|
|
EXPECT_EQ(0, IntLog2(1));
|
|
EXPECT_EQ(1, IntLog2(2));
|
|
EXPECT_EQ(2, IntLog2(4));
|
|
EXPECT_EQ(3, IntLog2(8));
|
|
EXPECT_EQ(63, IntLog2(0x8000000000000000ull));
|
|
|
|
// Rounding behavior.
|
|
EXPECT_EQ(3, IntLog2(15));
|
|
EXPECT_EQ(63, IntLog2(0xFFFFFFFFFFFFFFFFull));
|
|
}
|
|
|
|
TEST(MathUtil, NextPowerOf2)
|
|
{
|
|
EXPECT_EQ(4U, MathUtil::NextPowerOf2(3));
|
|
EXPECT_EQ(4U, MathUtil::NextPowerOf2(4));
|
|
EXPECT_EQ(8U, MathUtil::NextPowerOf2(6));
|
|
EXPECT_EQ(0x40000000U, MathUtil::NextPowerOf2(0x23456789));
|
|
}
|