Prototype: int remove(const char *filename);
Header File: stdio.h (C) or cstdio (C++)
Explanation: Remove will erase a file specified by filename. Upon success it will return zero, upon failure it will return nonzero.

//Example will erase useless.txt, in the current directory
//It is recommend that useless.txt be...useless
#include <cstdio>

using namespace std;

int main()
  if ( !remove("useless.txt") )
      cout<<"Successful deletion";
      cout<<"Oops, file not deleted (is it there?)";
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