22.locale.stdcxx-554.cpp

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#include <cstring>   // for memset()
#include <cassert>   // for assert()
 
#include <locale>    // for std::moneypunct, std::messages
 
enum { fill = '\xdc' };
 
template <class charT>
void test_moneypunct (charT)
{
    typedef std::moneypunct <charT> PunctT;
 
    // Use a pointer to properly align buffer for placment new.
    union {
        void* ptr;
        char buf [sizeof (PunctT) + 1];
    } u;
 
    std::memset (u.buf, fill, sizeof (u.buf));
 
    PunctT* p = new (u.buf) PunctT ();
 
    assert (fill == u.buf [sizeof (PunctT)]);
 
    p->~PunctT ();
}
 
template <class charT>
void test_messages (charT)
{
    typedef std::messages <charT> MessagesT;
 
    union {
        void* ptr;
        char buf [sizeof (MessagesT) + 1];
    } u;
 
    std::memset (u.buf, fill, sizeof (u.buf));
 
    MessagesT* p = new (u.buf) MessagesT ();
 
    assert (fill == u.buf [sizeof (MessagesT)]);
 
    p->~MessagesT ();
}
 
int main (int, char* [])
{
    test_moneypunct (char ());
    test_messages (char ());
 
#ifndef _RWSTD_NO_WCHAR_T
    test_moneypunct (wchar_t ());
    test_messages (wchar_t ());
#endif
 
    return 0;
}