http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56868
--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> 2013-04-07 19:41:33 UTC --- Whatever it is, doesn't have much to do with constexpr, consider: #include <cassert> int f(void *) { return 0; } int f(...) { return 1; } int g(int n) { return f(n*0); } int main() { assert (g(0) == 1); }