Mega Code Archive
Check ofstream current marker position
<![CDATA[
#include <iostream>
#include <fstream>
using namespace std;
int main(int argc, char** argv)
{
ofstream fout("test.out");
fout << "12345";
long curPos = fout.tellp();
if (curPos == 5) {
cout << "Test passed: Currently at position 5" << endl;
} else {
cout << "Test failed: Not at position 5" << endl;
}
fout.seekp(2, ios_base::beg);
fout << 0;
fout.flush();
ifstream fin("test.out");
int testVal;
fin >> testVal;
if (testVal == 12045) {
cout << "Test passed: Value is 12045" << endl;
} else {
cout << "Test failed: Value is not 12045 (it was " << testVal << ")" << endl;
}
}
]]>