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_view sv) const 13 14 #include <string> 15 #include <cassert> 16 17 #include "min_allocator.h" 18 19 int sign(int x) 20 { 21 if (x == 0) 22 return 0; 23 if (x < 0) 24 return -1; 25 return 1; 26 } 27 28 template <class S, class SV> 29 void 30 test(const S& s, SV sv, int x) 31 { 32 assert(sign(s.compare(sv)) == sign(x)); 33 } 34 35 int main() 36 { 37 { 38 typedef std::string S; 39 typedef std::string_view SV; 40 test(S(""), SV(""), 0); 41 test(S(""), SV("abcde"), -5); 42 test(S(""), SV("abcdefghij"), -10); 43 test(S(""), SV("abcdefghijklmnopqrst"), -20); 44 test(S("abcde"), SV(""), 5); 45 test(S("abcde"), SV("abcde"), 0); 46 test(S("abcde"), SV("abcdefghij"), -5); 47 test(S("abcde"), SV("abcdefghijklmnopqrst"), -15); 48 test(S("abcdefghij"), SV(""), 10); 49 test(S("abcdefghij"), SV("abcde"), 5); 50 test(S("abcdefghij"), SV("abcdefghij"), 0); 51 test(S("abcdefghij"), SV("abcdefghijklmnopqrst"), -10); 52 test(S("abcdefghijklmnopqrst"), SV(""), 20); 53 test(S("abcdefghijklmnopqrst"), SV("abcde"), 15); 54 test(S("abcdefghijklmnopqrst"), SV("abcdefghij"), 10); 55 test(S("abcdefghijklmnopqrst"), SV("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 typedef std::string_view SV; 61 test(S(""), SV(""), 0); 62 test(S(""), SV("abcde"), -5); 63 test(S(""), SV("abcdefghij"), -10); 64 test(S(""), SV("abcdefghijklmnopqrst"), -20); 65 test(S("abcde"), SV(""), 5); 66 test(S("abcde"), SV("abcde"), 0); 67 test(S("abcde"), SV("abcdefghij"), -5); 68 test(S("abcde"), SV("abcdefghijklmnopqrst"), -15); 69 test(S("abcdefghij"), SV(""), 10); 70 test(S("abcdefghij"), SV("abcde"), 5); 71 test(S("abcdefghij"), SV("abcdefghij"), 0); 72 test(S("abcdefghij"), SV("abcdefghijklmnopqrst"), -10); 73 test(S("abcdefghijklmnopqrst"), SV(""), 20); 74 test(S("abcdefghijklmnopqrst"), SV("abcde"), 15); 75 test(S("abcdefghijklmnopqrst"), SV("abcdefghij"), 10); 76 test(S("abcdefghijklmnopqrst"), SV("abcdefghijklmnopqrst"), 0); 77 } 78 #endif 79 } 80
