/
BirdLeon
/
ROBLOX2016
Обзор
Документация
Войти
/
BirdLeon
/
ROBLOX2016
Код
Запросы
0
Задачи
Вики
Пакеты
0
Релизы
0
Аналитика
Безопасность
main
Library/boost/libs/pool/test/test_bug_1252.cpp
66 строк
2 KB
PatoFlamejanteTV
full source code
19 дек 2024, 19:11
19 дек 2024, 19:11
05db15d
Код
Авторство
О чём код?
/* Copyright (C) 2011 John Maddock * * Use, modification and distribution is subject to the * Boost Software License, Version 1.0. (See accompanying * file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) */ // Test of bug #1252 (https://svn.boost.org/trac/boost/ticket/1252) #include <boost/pool/pool.hpp> #include <boost/detail/lightweight_test.hpp> #include <boost/type_traits/alignment_of.hpp> #include <cstring> struct limited_allocator_new_delete { typedef std::size_t size_type; typedef std::ptrdiff_t difference_type; static char * malloc BOOST_PREVENT_MACRO_SUBSTITUTION(const size_type bytes) { if(bytes > 1510 * 32) return 0; return new (std::nothrow) char[bytes]; } static void free BOOST_PREVENT_MACRO_SUBSTITUTION(char * const block) { delete [] block; } }; template <class T> void test_alignment(T) { unsigned align = boost::alignment_of<T>::value; boost::pool<> p(sizeof(T)); unsigned limit = 100000; for(unsigned i = 0; i < limit; ++i) { void* ptr = (p.malloc)(); BOOST_TEST(reinterpret_cast<std::size_t>(ptr) % align == 0); // Trample over the memory just to be sure the allocated block is big enough, // if it's not, we'll trample over the next block as well (and our internal housekeeping). std::memset(ptr, 0xff, sizeof(T)); } } int main() { boost::pool<limited_allocator_new_delete> po(1501); void* p = (po.malloc)(); BOOST_TEST(p != 0); test_alignment(char(0)); test_alignment(short(0)); test_alignment(int(0)); test_alignment(long(0)); test_alignment(double(0)); test_alignment(float(0)); test_alignment((long double)(0)); #ifndef BOOST_NO_LONG_LONG test_alignment((long long)(0)); #endif return boost::report_errors(); }