26.valarray.cshift.stdcxx-316.cpp

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// Test to detect memory corruption (such as the use of uninitialized
// storage) in valarray. 
 
#include <cassert>
#include <valarray>
 
struct S {
    const S* const self;
    S (): self (this) { }
    S (const S &s): self (this) { assert (&s == s.self); }
    ~S () { assert (this == self); }
 
    void operator= (const S &s) { assert (this == self && &s == s.self); }
};
 
 
int main ()
{
    const std::valarray<S> a (2);
 
    a.cshift (1);
 
    return 0;
}