Line data    Source code

       1             : // Copyright (c) 2009-2017 The Bitcoin Core developers
       2             : // Distributed under the MIT software license, see the accompanying
       3             : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
       4             : 
       5             : #include <list>
       6             : #include <locale>
       7             : #include <stdexcept>
       8             : 
       9             : namespace
      10             : {
      11             : // trigger: use ctype<char>::widen to trigger ctype<char>::_M_widen_init().
      12             : // test: convert a char from narrow to wide and back. Verify that the result
      13             : //   matches the original.
      14         380 : bool sanity_test_widen(char testchar)
      15             : {
      16         380 :     const std::ctype<char>& test(std::use_facet<std::ctype<char> >(std::locale()));
      17         760 :     return test.narrow(test.widen(testchar), 'b') == testchar;
      18             : }
      19             : 
      20             : // trigger: use list::push_back and list::pop_back to trigger _M_hook and
      21             : //   _M_unhook.
      22             : // test: Push a sequence of integers into a list. Pop them off and verify that
      23             : //   they match the original sequence.
      24         380 : bool sanity_test_list(unsigned int size)
      25             : {
      26         760 :     std::list<unsigned int> test;
      27       38380 :     for (unsigned int i = 0; i != size; ++i)
      28       38000 :         test.push_back(i + 1);
      29             : 
      30         380 :     if (test.size() != size)
      31             :         return false;
      32             : 
      33       38380 :     while (!test.empty()) {
      34       38000 :         if (test.back() != test.size())
      35             :             return false;
      36       38000 :         test.pop_back();
      37             :     }
      38             :     return true;
      39             : }
      40             : 
      41             : } // anon namespace
      42             : 
      43             : // trigger: string::at(x) on an empty string to trigger __throw_out_of_range_fmt.
      44             : // test: force std::string to throw an out_of_range exception. Verify that
      45             : //   it's caught correctly.
      46         380 : bool sanity_test_range_fmt()
      47             : {
      48         760 :     std::string test;
      49         380 :     try {
      50         760 :         test.at(1);
      51         380 :     } catch (const std::out_of_range&) {
      52         380 :         return true;
      53           0 :     } catch (...) {
      54             :     }
      55             :     return false;
      56             : }
      57             : 
      58         380 : bool glibcxx_sanity_test()
      59             : {
      60         380 :     return sanity_test_widen('a') && sanity_test_list(100) && sanity_test_range_fmt();
      61             : }