1//===----------------------------------------------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is dual licensed under the MIT and the University of Illinois Open 6// Source Licenses. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10// <string> 11 12// const_reference operator[](size_type pos) const; 13// reference operator[](size_type pos); 14 15#ifdef _LIBCPP_DEBUG 16#define _LIBCPP_ASSERT(x, m) ((x) ? (void)0 : std::exit(0)) 17#endif 18 19#include <string> 20#include <cassert> 21 22#include "min_allocator.h" 23 24int main() 25{ 26 { 27 typedef std::string S; 28 S s("0123456789"); 29 const S& cs = s; 30 for (S::size_type i = 0; i < cs.size(); ++i) 31 { 32 assert(s[i] == '0' + i); 33 assert(cs[i] == s[i]); 34 } 35 assert(cs[cs.size()] == '\0'); 36 const S s2 = S(); 37 assert(s2[0] == '\0'); 38 } 39#if __cplusplus >= 201103L 40 { 41 typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S; 42 S s("0123456789"); 43 const S& cs = s; 44 for (S::size_type i = 0; i < cs.size(); ++i) 45 { 46 assert(s[i] == '0' + i); 47 assert(cs[i] == s[i]); 48 } 49 assert(cs[cs.size()] == '\0'); 50 const S s2 = S(); 51 assert(s2[0] == '\0'); 52 } 53#endif 54#ifdef _LIBCPP_DEBUG 55 { 56 std::string s; 57 char c = s[0]; 58 assert(c == '\0'); 59 c = s[1]; 60 assert(false); 61 } 62#endif 63} 64