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 // basic_string<charT,traits,Allocator>& assign(const charT* s); 13 14 #include <string> 15 #include <stdexcept> 16 #include <cassert> 17 18 #include "test_macros.h" 19 #include "min_allocator.h" 20 21 template <class S> 22 void 23 test(S s, const typename S::value_type* str, S expected) 24 { 25 s.assign(str); 26 LIBCPP_ASSERT(s.__invariants()); 27 assert(s == expected); 28 } 29 30 int main() 31 { 32 { 33 typedef std::string S; 34 test(S(), "", S()); 35 test(S(), "12345", S("12345")); 36 test(S(), "12345678901234567890", S("12345678901234567890")); 37 38 test(S("12345"), "", S()); 39 test(S("12345"), "12345", S("12345")); 40 test(S("12345"), "1234567890", S("1234567890")); 41 42 test(S("12345678901234567890"), "", S()); 43 test(S("12345678901234567890"), "12345", S("12345")); 44 test(S("12345678901234567890"), "12345678901234567890", 45 S("12345678901234567890")); 46 } 47 #if TEST_STD_VER >= 11 48 { 49 typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S; 50 test(S(), "", S()); 51 test(S(), "12345", S("12345")); 52 test(S(), "12345678901234567890", S("12345678901234567890")); 53 54 test(S("12345"), "", S()); 55 test(S("12345"), "12345", S("12345")); 56 test(S("12345"), "1234567890", S("1234567890")); 57 58 test(S("12345678901234567890"), "", S()); 59 test(S("12345678901234567890"), "12345", S("12345")); 60 test(S("12345678901234567890"), "12345678901234567890", 61 S("12345678901234567890")); 62 } 63 #endif 64 65 { // test assignment to self 66 typedef std::string S; 67 S s_short = "123/"; 68 S s_long = "Lorem ipsum dolor sit amet, consectetur/"; 69 70 s_short.assign(s_short.c_str()); 71 assert(s_short == "123/"); 72 s_short.assign(s_short.c_str() + 2); 73 assert(s_short == "3/"); 74 75 s_long.assign(s_long.c_str() + 30); 76 assert(s_long == "nsectetur/"); 77 } 78 } 79
