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 // int compare(const basic_string& str) const 13 14 #include <string> 15 #include <cassert> 16 17 #include "test_macros.h" 18 #include "min_allocator.h" 19 20 int sign(int x) 21 { 22 if (x == 0) 23 return 0; 24 if (x < 0) 25 return -1; 26 return 1; 27 } 28 29 template <class S> 30 void 31 test(const S& s, const S& str, int x) 32 { 33 assert(sign(s.compare(str)) == sign(x)); 34 } 35 36 int main() 37 { 38 { 39 typedef std::string S; 40 test(S(""), S(""), 0); 41 test(S(""), S("abcde"), -5); 42 test(S(""), S("abcdefghij"), -10); 43 test(S(""), S("abcdefghijklmnopqrst"), -20); 44 test(S("abcde"), S(""), 5); 45 test(S("abcde"), S("abcde"), 0); 46 test(S("abcde"), S("abcdefghij"), -5); 47 test(S("abcde"), S("abcdefghijklmnopqrst"), -15); 48 test(S("abcdefghij"), S(""), 10); 49 test(S("abcdefghij"), S("abcde"), 5); 50 test(S("abcdefghij"), S("abcdefghij"), 0); 51 test(S("abcdefghij"), S("abcdefghijklmnopqrst"), -10); 52 test(S("abcdefghijklmnopqrst"), S(""), 20); 53 test(S("abcdefghijklmnopqrst"), S("abcde"), 15); 54 test(S("abcdefghijklmnopqrst"), S("abcdefghij"), 10); 55 test(S("abcdefghijklmnopqrst"), S("abcdefghijklmnopqrst"), 0); 56 } 57 #if TEST_STD_VER >= 11 58 { 59 typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S; 60 test(S(""), S(""), 0); 61 test(S(""), S("abcde"), -5); 62 test(S(""), S("abcdefghij"), -10); 63 test(S(""), S("abcdefghijklmnopqrst"), -20); 64 test(S("abcde"), S(""), 5); 65 test(S("abcde"), S("abcde"), 0); 66 test(S("abcde"), S("abcdefghij"), -5); 67 test(S("abcde"), S("abcdefghijklmnopqrst"), -15); 68 test(S("abcdefghij"), S(""), 10); 69 test(S("abcdefghij"), S("abcde"), 5); 70 test(S("abcdefghij"), S("abcdefghij"), 0); 71 test(S("abcdefghij"), S("abcdefghijklmnopqrst"), -10); 72 test(S("abcdefghijklmnopqrst"), S(""), 20); 73 test(S("abcdefghijklmnopqrst"), S("abcde"), 15); 74 test(S("abcdefghijklmnopqrst"), S("abcdefghij"), 10); 75 test(S("abcdefghijklmnopqrst"), S("abcdefghijklmnopqrst"), 0); 76 } 77 #endif 78 79 #if TEST_STD_VER > 3 80 { // LWG 2946 81 std::string s = " !"; 82 assert(s.compare({"abc", 1}) < 0); 83 } 84 #endif 85 } 86
