23.vector.modifiers.stdcxx-495.cpp

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#include <cassert>
#include <vector>
 
struct X
{
    int __val;
 
    X () : __val (0) { }
    X (int val) : __val (val) { }
    X (const X& x) : __val (x.__val) { }
    X& operator= (const X& x) { __val = x.__val; return *this; }
};
 
bool operator== (const X& left, const X& right)
{
    return left.__val == right.__val;
}
 
template <class T>
void test ()
{
    std::vector<T> vec;
    vec.push_back (T (1));
    vec.push_back (T (2));
    vec.insert (vec.begin (), vec.back ());
    assert (vec.front () == vec.back ());
}
 
int main ()
{
    test<int> ();
    test<X> ();
 
    return 0;
}