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With unopened I mean:
ofstream outFile;
outFile << "Some text";
So I put text in an ofstream without call the .open() method. g++ does not complain, so maybe I still can save the data? How?
The stream will be in a failure state after you do this (
outFile.fail()will be true). The text isn’t stored anywhere, so no, you can’t save it.If you want to store data in memory, use an
std::ostringstream(from the<sstream>header) instead.