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 24 int 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
