1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // <string> 10 11 // const_iterator cbegin() const; 12 13 #include <string> 14 #include <cassert> 15 16 #include "min_allocator.h" 17 18 template <class S> 19 void 20 test(const S& s) 21 { 22 typename S::const_iterator cb = s.cbegin(); 23 if (!s.empty()) 24 { 25 assert(*cb == s[0]); 26 } 27 assert(cb == s.begin()); 28 } 29 30 int main(int, char**) 31 { 32 { 33 typedef std::string S; 34 test(S()); 35 test(S("123")); 36 } 37 #if TEST_STD_VER >= 11 38 { 39 typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S; 40 test(S()); 41 test(S("123")); 42 } 43 #endif 44 45 return 0; 46 } 47