TestCountPopulation.cpp (1253B)
1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */ 3 /* This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this file, 5 * You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 #include "mozilla/MathAlgorithms.h" 8 9 using mozilla::CountPopulation32; 10 11 static void TestCountPopulation32() { 12 MOZ_RELEASE_ASSERT(CountPopulation32(0xFFFFFFFF) == 32); 13 MOZ_RELEASE_ASSERT(CountPopulation32(0xF0FF1000) == 13); 14 MOZ_RELEASE_ASSERT(CountPopulation32(0x7F8F0001) == 13); 15 MOZ_RELEASE_ASSERT(CountPopulation32(0x3FFF0100) == 15); 16 MOZ_RELEASE_ASSERT(CountPopulation32(0x1FF50010) == 12); 17 MOZ_RELEASE_ASSERT(CountPopulation32(0x00800000) == 1); 18 MOZ_RELEASE_ASSERT(CountPopulation32(0x00400000) == 1); 19 MOZ_RELEASE_ASSERT(CountPopulation32(0x00008000) == 1); 20 MOZ_RELEASE_ASSERT(CountPopulation32(0x00004000) == 1); 21 MOZ_RELEASE_ASSERT(CountPopulation32(0x00000080) == 1); 22 MOZ_RELEASE_ASSERT(CountPopulation32(0x00000040) == 1); 23 MOZ_RELEASE_ASSERT(CountPopulation32(0x00000001) == 1); 24 MOZ_RELEASE_ASSERT(CountPopulation32(0x00000000) == 0); 25 } 26 27 int main() { 28 TestCountPopulation32(); 29 return 0; 30 }