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 // int compare(const charT *s) const; 12 13 #include <string> 14 #include <cassert> 15 16 #include "min_allocator.h" 17 18 int sign(int x) 19 { 20 if (x == 0) 21 return 0; 22 if (x < 0) 23 return -1; 24 return 1; 25 } 26 27 template <class S> 28 void 29 test(const S& s, const typename S::value_type* str, int x) 30 { 31 assert(sign(s.compare(str)) == sign(x)); 32 } 33 34 int main() 35 { 36 { 37 typedef std::string S; 38 test(S(""), "", 0); 39 test(S(""), "abcde", -5); 40 test(S(""), "abcdefghij", -10); 41 test(S(""), "abcdefghijklmnopqrst", -20); 42 test(S("abcde"), "", 5); 43 test(S("abcde"), "abcde", 0); 44 test(S("abcde"), "abcdefghij", -5); 45 test(S("abcde"), "abcdefghijklmnopqrst", -15); 46 test(S("abcdefghij"), "", 10); 47 test(S("abcdefghij"), "abcde", 5); 48 test(S("abcdefghij"), "abcdefghij", 0); 49 test(S("abcdefghij"), "abcdefghijklmnopqrst", -10); 50 test(S("abcdefghijklmnopqrst"), "", 20); 51 test(S("abcdefghijklmnopqrst"), "abcde", 15); 52 test(S("abcdefghijklmnopqrst"), "abcdefghij", 10); 53 test(S("abcdefghijklmnopqrst"), "abcdefghijklmnopqrst", 0); 54 } 55 #if TEST_STD_VER >= 11 56 { 57 typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S; 58 test(S(""), "", 0); 59 test(S(""), "abcde", -5); 60 test(S(""), "abcdefghij", -10); 61 test(S(""), "abcdefghijklmnopqrst", -20); 62 test(S("abcde"), "", 5); 63 test(S("abcde"), "abcde", 0); 64 test(S("abcde"), "abcdefghij", -5); 65 test(S("abcde"), "abcdefghijklmnopqrst", -15); 66 test(S("abcdefghij"), "", 10); 67 test(S("abcdefghij"), "abcde", 5); 68 test(S("abcdefghij"), "abcdefghij", 0); 69 test(S("abcdefghij"), "abcdefghijklmnopqrst", -10); 70 test(S("abcdefghijklmnopqrst"), "", 20); 71 test(S("abcdefghijklmnopqrst"), "abcde", 15); 72 test(S("abcdefghijklmnopqrst"), "abcdefghij", 10); 73 test(S("abcdefghijklmnopqrst"), "abcdefghijklmnopqrst", 0); 74 } 75 #endif 76 } 77