mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
55 lines
1.2 KiB
C++
55 lines
1.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
|
|
* You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "mozilla/MathAlgorithms.h"
|
|
|
|
using mozilla::CeilingLog2;
|
|
using mozilla::FloorLog2;
|
|
|
|
static void
|
|
TestCeiling()
|
|
{
|
|
for (uint32_t i = 0; i <= 1; i++)
|
|
MOZ_ASSERT(CeilingLog2(i) == 0);
|
|
|
|
for (uint32_t i = 2; i <= 2; i++)
|
|
MOZ_ASSERT(CeilingLog2(i) == 1);
|
|
|
|
for (uint32_t i = 3; i <= 4; i++)
|
|
MOZ_ASSERT(CeilingLog2(i) == 2);
|
|
|
|
for (uint32_t i = 5; i <= 8; i++)
|
|
MOZ_ASSERT(CeilingLog2(i) == 3);
|
|
|
|
for (uint32_t i = 9; i <= 16; i++)
|
|
MOZ_ASSERT(CeilingLog2(i) == 4);
|
|
}
|
|
|
|
static void
|
|
TestFloor()
|
|
{
|
|
for (uint32_t i = 0; i <= 1; i++)
|
|
MOZ_ASSERT(FloorLog2(i) == 0);
|
|
|
|
for (uint32_t i = 2; i <= 3; i++)
|
|
MOZ_ASSERT(FloorLog2(i) == 1);
|
|
|
|
for (uint32_t i = 4; i <= 7; i++)
|
|
MOZ_ASSERT(FloorLog2(i) == 2);
|
|
|
|
for (uint32_t i = 8; i <= 15; i++)
|
|
MOZ_ASSERT(FloorLog2(i) == 3);
|
|
|
|
for (uint32_t i = 16; i <= 31; i++)
|
|
MOZ_ASSERT(FloorLog2(i) == 4);
|
|
}
|
|
|
|
int main()
|
|
{
|
|
TestCeiling();
|
|
TestFloor();
|
|
return 0;
|
|
}
|