I have to create and write on N files, everyone must have an integer ending to identificate it.
This is my piece of code:
for(int i=0; i<MAX; i++)
{
uscita.open("nameFile"+i+".txt", ios::out);
uscita << getData() << endl;
uscita.close();
}
And that's what I would like to find in my directory after execution:
nameFile0.txt
nameFile1.txt
nameFile2.txt
...
nameFileMAX.txt
The problem of the above code is that I get the compilin' error:
error C2110: '+' Impossible to add two pointers
If I try to create a string for the name, another problem comes in:
string s ="nameFile"+i+".txt";
uscita.open(s, ios::out);
And the problem is:
error C2664: you cannot convert from string to
const wchar_t*
What can I do? How can I create files with different names concating int
to wchar_t*
?
You can use a wstringstream
std::wstringstream wss;
wss << "nameFile" << i << ".txt";
uscita.open(wss.str().c_str(), ios::out);