1 // -*- C++ -*- 2 //===----------------------------------------------------------------------===// 3 // 4 // The LLVM Compiler Infrastructure 5 // 6 // This file is dual licensed under the MIT and the University of Illinois Open 7 // Source Licenses. See LICENSE.TXT for details. 8 // 9 //===----------------------------------------------------------------------===// 10 #include <string> 11 #include <cassert> 12 13 int main() 14 { 15 #if _LIBCPP_STD_VER > 11 16 using namespace std::literals::string_literals; 17 18 static_assert ( std::is_same<decltype( "Hi"s), std::string>::value, "" ); 19 static_assert ( std::is_same<decltype( u8"Hi"s), std::string>::value, "" ); 20 static_assert ( std::is_same<decltype( L"Hi"s), std::wstring>::value, "" ); 21 static_assert ( std::is_same<decltype( u"Hi"s), std::u16string>::value, "" ); 22 static_assert ( std::is_same<decltype( U"Hi"s), std::u32string>::value, "" ); 23 24 std::string foo; 25 std::wstring Lfoo; 26 std::u16string ufoo; 27 std::u32string Ufoo; 28 29 foo = ""s; assert( foo.size() == 0); 30 foo = u8""s; assert( foo.size() == 0); 31 Lfoo = L""s; assert(Lfoo.size() == 0); 32 ufoo = u""s; assert(ufoo.size() == 0); 33 Ufoo = U""s; assert(Ufoo.size() == 0); 34 35 foo = " "s; assert( foo.size() == 1); 36 foo = u8" "s; assert( foo.size() == 1); 37 Lfoo = L" "s; assert(Lfoo.size() == 1); 38 ufoo = u" "s; assert(ufoo.size() == 1); 39 Ufoo = U" "s; assert(Ufoo.size() == 1); 40 41 foo = "ABC"s; assert( foo == "ABC"); assert( foo == std::string ( "ABC")); 42 foo = u8"ABC"s; assert( foo == u8"ABC"); assert( foo == std::string (u8"ABC")); 43 Lfoo = L"ABC"s; assert(Lfoo == L"ABC"); assert(Lfoo == std::wstring ( L"ABC")); 44 ufoo = u"ABC"s; assert(ufoo == u"ABC"); assert(ufoo == std::u16string( u"ABC")); 45 Ufoo = U"ABC"s; assert(Ufoo == U"ABC"); assert(Ufoo == std::u32string( U"ABC")); 46 #endif 47 } 48
