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// Build don't link:
template<int N1, int N2>
struct meta_max {
enum { max = (N1 > N2) ? N1 : N2 };
};
struct X {
enum {
a = 0,
n = 0
};
};
template<class T1, class T2>
struct Y {
enum {
a = T1::a + T2::a,
// NB: if the next line is changed to
// n = (T1::n > T2::n) ? T1::n : T2::n
// the problem goes away.
n = meta_max<T1::n,T2::n>::max
};
};
int z = Y<X,X>::a;
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