git / moonbite-core / src/compat/glibcxx_sanity.cpp · raw

// Copyright (c) 2009-2018 The Bitcoin Core developers// Distributed under the MIT software license, see the accompanying// file COPYING or http://www.opensource.org/licenses/mit-license.php.#include <list>#include <locale>#include <stdexcept>namespace{// trigger: use ctype<char>::widen to trigger ctype<char>::_M_widen_init().// test: convert a char from narrow to wide and back. Verify that the result//   matches the original.bool sanity_test_widen(char testchar){    const std::ctype<char>& test(std::use_facet<std::ctype<char> >(std::locale()));    return test.narrow(test.widen(testchar), 'b') == testchar;}// trigger: use list::push_back and list::pop_back to trigger _M_hook and//   _M_unhook.// test: Push a sequence of integers into a list. Pop them off and verify that//   they match the original sequence.bool sanity_test_list(unsigned int size){    std::list<unsigned int> test;    for (unsigned int i = 0; i != size; ++i)        test.push_back(i + 1);    if (test.size() != size)        return false;    while (!test.empty()) {        if (test.back() != test.size())            return false;        test.pop_back();    }    return true;}} // namespace// trigger: string::at(x) on an empty string to trigger __throw_out_of_range_fmt.// test: force std::string to throw an out_of_range exception. Verify that//   it's caught correctly.bool sanity_test_range_fmt(){    std::string test;    try {        test.at(1);    } catch (const std::out_of_range&) {        return true;    } catch (...) {    }    return false;}bool glibcxx_sanity_test(){    return sanity_test_widen('a') && sanity_test_list(100) && sanity_test_range_fmt();}