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 11 // <string_view> 12 // constexpr int compare(basic_string_view str) const noexcept; 13 14 #include <experimental/string_view> 15 #include <cassert> 16 17 #include "test_macros.h" 18 #include "constexpr_char_traits.hpp" 19 20 int sign ( int x ) { return x > 0 ? 1 : ( x < 0 ? -1 : 0 ); } 21 22 template<typename CharT> 23 void test1 ( std::experimental::basic_string_view<CharT> sv1, 24 std::experimental::basic_string_view<CharT> sv2, int expected ) { 25 assert ( sign( sv1.compare(sv2)) == sign(expected)); 26 } 27 28 29 template<typename CharT> 30 void test ( const CharT *s1, const CharT *s2, int expected ) { 31 typedef std::experimental::basic_string_view<CharT> string_view_t; 32 33 string_view_t sv1 ( s1 ); 34 string_view_t sv2 ( s2 ); 35 test1(sv1, sv2, expected); 36 } 37 38 int main () { 39 40 test("", "", 0); 41 test("", "abcde", -5); 42 test("", "abcdefghij", -10); 43 test("", "abcdefghijklmnopqrst", -20); 44 test("abcde", "", 5); 45 test("abcde", "abcde", 0); 46 test("abcde", "abcdefghij", -5); 47 test("abcde", "abcdefghijklmnopqrst", -15); 48 test("abcdefghij", "", 10); 49 test("abcdefghij", "abcde", 5); 50 test("abcdefghij", "abcdefghij", 0); 51 test("abcdefghij", "abcdefghijklmnopqrst", -10); 52 test("abcdefghijklmnopqrst", "", 20); 53 test("abcdefghijklmnopqrst", "abcde", 15); 54 test("abcdefghijklmnopqrst", "abcdefghij", 10); 55 test("abcdefghijklmnopqrst", "abcdefghijklmnopqrst", 0); 56 57 test(L"", L"", 0); 58 test(L"", L"abcde", -5); 59 test(L"", L"abcdefghij", -10); 60 test(L"", L"abcdefghijklmnopqrst", -20); 61 test(L"abcde", L"", 5); 62 test(L"abcde", L"abcde", 0); 63 test(L"abcde", L"abcdefghij", -5); 64 test(L"abcde", L"abcdefghijklmnopqrst", -15); 65 test(L"abcdefghij", L"", 10); 66 test(L"abcdefghij", L"abcde", 5); 67 test(L"abcdefghij", L"abcdefghij", 0); 68 test(L"abcdefghij", L"abcdefghijklmnopqrst", -10); 69 test(L"abcdefghijklmnopqrst", L"", 20); 70 test(L"abcdefghijklmnopqrst", L"abcde", 15); 71 test(L"abcdefghijklmnopqrst", L"abcdefghij", 10); 72 test(L"abcdefghijklmnopqrst", L"abcdefghijklmnopqrst", 0); 73 74 #if TEST_STD_VER >= 11 75 test(u"", u"", 0); 76 test(u"", u"abcde", -5); 77 test(u"", u"abcdefghij", -10); 78 test(u"", u"abcdefghijklmnopqrst", -20); 79 test(u"abcde", u"", 5); 80 test(u"abcde", u"abcde", 0); 81 test(u"abcde", u"abcdefghij", -5); 82 test(u"abcde", u"abcdefghijklmnopqrst", -15); 83 test(u"abcdefghij", u"", 10); 84 test(u"abcdefghij", u"abcde", 5); 85 test(u"abcdefghij", u"abcdefghij", 0); 86 test(u"abcdefghij", u"abcdefghijklmnopqrst", -10); 87 test(u"abcdefghijklmnopqrst", u"", 20); 88 test(u"abcdefghijklmnopqrst", u"abcde", 15); 89 test(u"abcdefghijklmnopqrst", u"abcdefghij", 10); 90 test(u"abcdefghijklmnopqrst", u"abcdefghijklmnopqrst", 0); 91 92 test(U"", U"", 0); 93 test(U"", U"abcde", -5); 94 test(U"", U"abcdefghij", -10); 95 test(U"", U"abcdefghijklmnopqrst", -20); 96 test(U"abcde", U"", 5); 97 test(U"abcde", U"abcde", 0); 98 test(U"abcde", U"abcdefghij", -5); 99 test(U"abcde", U"abcdefghijklmnopqrst", -15); 100 test(U"abcdefghij", U"", 10); 101 test(U"abcdefghij", U"abcde", 5); 102 test(U"abcdefghij", U"abcdefghij", 0); 103 test(U"abcdefghij", U"abcdefghijklmnopqrst", -10); 104 test(U"abcdefghijklmnopqrst", U"", 20); 105 test(U"abcdefghijklmnopqrst", U"abcde", 15); 106 test(U"abcdefghijklmnopqrst", U"abcdefghij", 10); 107 test(U"abcdefghijklmnopqrst", U"abcdefghijklmnopqrst", 0); 108 #endif 109 110 #if TEST_STD_VER > 11 111 { 112 typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV; 113 constexpr SV sv1 { "abcde", 5 }; 114 constexpr SV sv2 { "abcde", 5 }; 115 constexpr SV sv3 { "edcba0", 6 }; 116 static_assert ( sv1.compare(sv2) == 0, "" ); 117 static_assert ( sv2.compare(sv1) == 0, "" ); 118 static_assert ( sv3.compare(sv2) > 0, "" ); 119 static_assert ( sv2.compare(sv3) < 0, "" ); 120 } 121 #endif 122 } 123
