p5.cpp revision 839046a8c5f890f172b0a172ed6ec9e7d0275f2e 
1// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
2
3namespace StdExample {
4
5constexpr int f(void *) { return 0; }
6constexpr int f(...) { return 1; }
7constexpr int g1() { return f(0); }
8constexpr int g2(int n) { return f(n); }
9constexpr int g3(int n) { return f(n*0); }
10
11namespace N {
12  constexpr int c = 5;
13  constexpr int h() { return c; }
14}
15constexpr int c = 0;
16constexpr int g4() { return N::h(); }
17
18// FIXME: constexpr calls aren't recognized as ICEs yet, just as foldable.
19#define JOIN2(a, b) a ## b
20#define JOIN(a, b) JOIN2(a, b)
21#define CHECK(n, m) using JOIN(A, __LINE__) = int[n]; using JOIN(A, __LINE__) = int[m];
22CHECK(f(0), 0)
23CHECK(f('0'), 1)
24CHECK(g1(), 0)
25CHECK(g2(0), 1)
26CHECK(g2(1), 1)
27CHECK(g3(0), 1)
28CHECK(g3(1), 1)
29CHECK(N::h(), 5)
30CHECK(g4(), 5)
31
32}
33