anwar sholi 2
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No, you don't. You want to stay away from gets()
entirely, in fact. The function is extremely dangerous, because it is prone to buffer overruns, and no experienced C/C++ programmer still uses it.
Well, knowing how it works and using it are entirely different.
I agree with Schol-R-LEA in that you should never use this function. However, if you want to learn how it works internally to better understand it and why you should avoid it - that is a good thing.
Look for an open source implementation of it (FreeBSD, for example: gets.c)
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