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 13 // constexpr basic_string_view(const _CharT* _s, size_type _len) 14 // : __data (_s), __size(_len) {} 15 16 17 #include <experimental/string_view> 18 #include <string> 19 #include <cassert> 20 21 #include "test_macros.h" 22 23 template<typename CharT> 24 void test ( const CharT *s, size_t sz ) { 25 { 26 std::experimental::basic_string_view<CharT> sv1 ( s, sz ); 27 assert ( sv1.size() == sz ); 28 assert ( sv1.data() == s ); 29 } 30 } 31 32 int main () { 33 34 test ( "QBCDE", 5 ); 35 test ( "QBCDE", 2 ); 36 test ( "", 0 ); 37 #if TEST_STD_VER > 11 38 { 39 constexpr const char *s = "QBCDE"; 40 constexpr std::experimental::basic_string_view<char> sv1 ( s, 2 ); 41 static_assert ( sv1.size() == 2, "" ); 42 static_assert ( sv1.data() == s, "" ); 43 } 44 #endif 45 46 test ( L"QBCDE", 5 ); 47 test ( L"QBCDE", 2 ); 48 test ( L"", 0 ); 49 #if TEST_STD_VER > 11 50 { 51 constexpr const wchar_t *s = L"QBCDE"; 52 constexpr std::experimental::basic_string_view<wchar_t> sv1 ( s, 2 ); 53 static_assert ( sv1.size() == 2, "" ); 54 static_assert ( sv1.data() == s, "" ); 55 } 56 #endif 57 58 #if TEST_STD_VER >= 11 59 test ( u"QBCDE", 5 ); 60 test ( u"QBCDE", 2 ); 61 test ( u"", 0 ); 62 #if TEST_STD_VER > 11 63 { 64 constexpr const char16_t *s = u"QBCDE"; 65 constexpr std::experimental::basic_string_view<char16_t> sv1 ( s, 2 ); 66 static_assert ( sv1.size() == 2, "" ); 67 static_assert ( sv1.data() == s, "" ); 68 } 69 #endif 70 71 test ( U"QBCDE", 5 ); 72 test ( U"QBCDE", 2 ); 73 test ( U"", 0 ); 74 #if TEST_STD_VER > 11 75 { 76 constexpr const char32_t *s = U"QBCDE"; 77 constexpr std::experimental::basic_string_view<char32_t> sv1 ( s, 2 ); 78 static_assert ( sv1.size() == 2, "" ); 79 static_assert ( sv1.data() == s, "" ); 80 } 81 #endif 82 #endif 83 } 84
