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// <fstream> 11 12// template <class charT, class traits = char_traits<charT> > 13// class basic_ifstream 14 15// void open(const wchar_t* s, ios_base::openmode mode = ios_base::in); 16 17#include <fstream> 18#include <cassert> 19 20int main() 21{ 22#ifdef _LIBCPP_HAS_OPEN_WITH_WCHAR 23 { 24 std::ifstream fs; 25 assert(!fs.is_open()); 26 char c = 'a'; 27 fs >> c; 28 assert(fs.fail()); 29 assert(c == 'a'); 30 fs.open(L"test.dat"); 31 assert(fs.is_open()); 32 fs >> c; 33 assert(c == 'r'); 34 } 35 { 36 std::wifstream fs; 37 assert(!fs.is_open()); 38 wchar_t c = L'a'; 39 fs >> c; 40 assert(fs.fail()); 41 assert(c == L'a'); 42 fs.open(L"test.dat"); 43 assert(fs.is_open()); 44 fs >> c; 45 assert(c == L'r'); 46 } 47#endif 48} 49