mfbt/tests/TestCountPopulation.cpp

Wed, 31 Dec 2014 06:55:50 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:55:50 +0100
changeset 2
7e26c7da4463
permissions
-rw-r--r--

Added tag UPSTREAM_283F7C6 for changeset ca08bd8f51b2

michael@0 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0 2 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0 4 * You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5
michael@0 6 #include "mozilla/MathAlgorithms.h"
michael@0 7
michael@0 8 using mozilla::CountPopulation32;
michael@0 9
michael@0 10 static void
michael@0 11 TestCountPopulation32()
michael@0 12 {
michael@0 13 MOZ_RELEASE_ASSERT(CountPopulation32(0xFFFFFFFF) == 32);
michael@0 14 MOZ_RELEASE_ASSERT(CountPopulation32(0xF0FF1000) == 13);
michael@0 15 MOZ_RELEASE_ASSERT(CountPopulation32(0x7F8F0001) == 13);
michael@0 16 MOZ_RELEASE_ASSERT(CountPopulation32(0x3FFF0100) == 15);
michael@0 17 MOZ_RELEASE_ASSERT(CountPopulation32(0x1FF50010) == 12);
michael@0 18 MOZ_RELEASE_ASSERT(CountPopulation32(0x00800000) == 1);
michael@0 19 MOZ_RELEASE_ASSERT(CountPopulation32(0x00400000) == 1);
michael@0 20 MOZ_RELEASE_ASSERT(CountPopulation32(0x00008000) == 1);
michael@0 21 MOZ_RELEASE_ASSERT(CountPopulation32(0x00004000) == 1);
michael@0 22 MOZ_RELEASE_ASSERT(CountPopulation32(0x00000080) == 1);
michael@0 23 MOZ_RELEASE_ASSERT(CountPopulation32(0x00000040) == 1);
michael@0 24 MOZ_RELEASE_ASSERT(CountPopulation32(0x00000001) == 1);
michael@0 25 MOZ_RELEASE_ASSERT(CountPopulation32(0x00000000) == 0);
michael@0 26 }
michael@0 27
michael@0 28 int main()
michael@0 29 {
michael@0 30 TestCountPopulation32();
michael@0 31 return 0;
michael@0 32 }

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