File open modes n ios::app n ios::ate n ios::binary n ios::in n ios::out n ios::trunc n ios::nocreate n ios::noreplace
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ios::app Write all output to the end of file, no matter how you set the seekp pointer. ofstream: open file, write data to the end of file. ifstream: open file, read data from file. fstream: open file, write data to the end of file, BUT cannot read data from file. If the file does not exist, the program will create a new file.
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Example Before Alex Zhao Andrew Nguyen Vincent Tran After Alex Zhao Andrew Nguyen Vincent Tran Tyler Price fstream File (myFile.txt, ios::app); File.seekp (0); File
