open_string.pass.cpp [plain text]
#include <fstream>
#include <cassert>
int main()
{
char temp[L_tmpnam];
tmpnam(temp);
{
std::fstream fs;
assert(!fs.is_open());
fs.open(std::string(temp), std::ios_base::in | std::ios_base::out
| std::ios_base::trunc);
assert(fs.is_open());
double x = 0;
fs << 3.25;
fs.seekg(0);
fs >> x;
assert(x == 3.25);
}
std::remove(temp);
{
std::wfstream fs;
assert(!fs.is_open());
fs.open(std::string(temp), std::ios_base::in | std::ios_base::out
| std::ios_base::trunc);
assert(fs.is_open());
double x = 0;
fs << 3.25;
fs.seekg(0);
fs >> x;
assert(x == 3.25);
}
std::remove(temp);
}