// RUN: %clang_cc1 -std=c++11 %s -verify | |
// expected-no-diagnostics | |
using size_t = decltype(sizeof(0)); | |
template<typename T> struct check; | |
template<size_t N> struct check<const char[N]> {}; | |
constexpr bool startswith(const char *p, const char *q) { | |
return !*q || (*p == *q && startswith(p + 1, q + 1)); | |
} | |
constexpr bool contains(const char *p, const char *q) { | |
return *p && (startswith(p, q) || contains(p + 1, q)); | |
} | |
void foo() { | |
check<decltype(__func__)>(); | |
static_assert(contains(__func__, "foo"), ""); | |
} |