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 const _CharT* data() const noexcept; 14 15 #include <string_view> 16 #include <cassert> 17 18 #include "test_macros.h" 19 20 template <typename CharT> 21 void test ( const CharT *s, size_t len ) { 22 std::basic_string_view<CharT> sv ( s, len ); 23 assert ( sv.length() == len ); 24 assert ( sv.data() == s ); 25 #if TEST_STD_VER > 14 26 // make sure we pick up std::data, too! 27 assert ( sv.data() == std::data(sv)); 28 #endif 29 } 30 31 int main () { 32 test ( "ABCDE", 5 ); 33 test ( "a", 1 ); 34 35 test ( L"ABCDE", 5 ); 36 test ( L"a", 1 ); 37 38 #if TEST_STD_VER >= 11 39 test ( u"ABCDE", 5 ); 40 test ( u"a", 1 ); 41 42 test ( U"ABCDE", 5 ); 43 test ( U"a", 1 ); 44 #endif 45 46 #if TEST_STD_VER > 11 47 { 48 constexpr const char *s = "ABC"; 49 constexpr std::basic_string_view<char> sv( s, 2 ); 50 static_assert( sv.length() == 2, "" ); 51 static_assert( sv.data() == s, "" ); 52 } 53 #endif 54 } 55
