blob: b685c660fe7eaa8dcbcc8b88b5a4b9fb9a95d0be [file] [log] [blame]
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <fstream>
// basic_filebuf<charT,traits>* open(const char* s, ios_base::openmode mode);
#include <fstream>
#include <cassert>
int main()
{
{
std::filebuf f;
assert(f.open("test.dat", std::ios_base::out) != 0);
assert(f.is_open());
assert(f.sputn("123", 3) == 3);
}
{
std::filebuf f;
assert(f.open("test.dat", std::ios_base::in) != 0);
assert(f.is_open());
assert(f.sbumpc() == '1');
assert(f.sbumpc() == '2');
assert(f.sbumpc() == '3');
}
remove("test.dat");
{
std::wfilebuf f;
assert(f.open("test.dat", std::ios_base::out) != 0);
assert(f.is_open());
assert(f.sputn(L"123", 3) == 3);
}
{
std::wfilebuf f;
assert(f.open("test.dat", std::ios_base::in) != 0);
assert(f.is_open());
assert(f.sbumpc() == L'1');
assert(f.sbumpc() == L'2');
assert(f.sbumpc() == L'3');
}
remove("test.dat");
}