rename()

This is a File I/O function. It is not implemented in the Compiler.

  #include <stdio.h>

  

  int rename(const char *from, const char *to);

  

rename() renames the from file to to. If there already is a to file, rename() does not change anything and returns with an error code.

Non-zero, if there was an error; zero otherwise.

tmpfile() and

tmpnam()