open_pointer.pass.cpp [plain text]
#include <fstream>
#include <cassert>
int main()
{
char temp[L_tmpnam];
tmpnam(temp);
{
std::filebuf f;
assert(f.open(temp, std::ios_base::out) != 0);
assert(f.is_open());
assert(f.sputn("123", 3) == 3);
}
{
std::filebuf f;
assert(f.open(temp, std::ios_base::in) != 0);
assert(f.is_open());
assert(f.sbumpc() == '1');
assert(f.sbumpc() == '2');
assert(f.sbumpc() == '3');
}
remove(temp);
{
std::wfilebuf f;
assert(f.open(temp, std::ios_base::out) != 0);
assert(f.is_open());
assert(f.sputn(L"123", 3) == 3);
}
{
std::wfilebuf f;
assert(f.open(temp, 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(temp);
}