| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // UNSUPPORTED: c++98, c++03, c++11, c++14, c++17 |
| |
| // <string> |
| |
| // bool starts_with(charT x) const noexcept; |
| |
| #include <string> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| |
| int main() |
| { |
| { |
| typedef std::string S; |
| S s1 {}; |
| S s2 { "abcde", 5 }; |
| |
| ASSERT_NOEXCEPT(s1.starts_with('e')); |
| |
| assert (!s1.starts_with('a')); |
| assert (!s1.starts_with('x')); |
| assert ( s2.starts_with('a')); |
| assert (!s2.starts_with('x')); |
| } |
| } |