1 // PR c++/63265
2 // { dg-do compile { target c++11 } }
3 
4 #define LSHIFT (sizeof(unsigned int) * __CHAR_BIT__)
5 
6 template <int lshift>
7 struct SpuriouslyWarns1 {
8     static constexpr unsigned int v = lshift < LSHIFT ? 1U << lshift : 0;
9 };
10 
11 static_assert(SpuriouslyWarns1<LSHIFT>::v == 0, "Impossible occurred");
12 
13 template <int lshift>
14 struct SpuriouslyWarns2 {
15     static constexpr bool okay = lshift < LSHIFT;
16     static constexpr unsigned int v = okay ? 1U << lshift : 0;
17 };
18 
19 static_assert(SpuriouslyWarns2<LSHIFT>::v == 0, "Impossible occurred");
20