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// aligned_union example
#include <iostream>
#include <type_traits>
union U {
int i;
char c;
double d;
U(const char* str) : c(str[0]) {}
}; // non-POD
typedef std::aligned_union<sizeof(U),int,char,double>::type U_pod;
int main() {
U_pod a,b; // default-initialized (ok: type is POD)
new (&a) U ("hello"); // call U's constructor in place
b = a; // assignment (ok: type is POD)
std::cout << reinterpret_cast<U&>(b).i << std::endl;
return 0;
}
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