Question:
In C, I use the FILE *filename. As a beginning C++ programmer, I open streams for reading and writing inside the main() function, but when I try to work with the open files inside another function, it can’t reference the original files.
Answer:
The trick is to pass to the function a reference to the same object thatyou used to open the file in the first place.. Here is an example:
int main (){ ifsteam ifile (“somefile”); readFile(ifile);}void readFile (ifsterm &if){ int i; if >> i; // any more operations on the stream}
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