cppreference.com > Standard C I/O > fsetpos fsetpos Syntax:
      #include <stdio.h>
      int fsetpos( FILE *stream, const fpos_t *position );
The fsetpos() function moves the file position indicator for the given stream to a location specified by the position object. fpos_t is defined in stdio.h. The return value for fsetpos() is zero upon success, non-zero on failure. Related topics: fgetpos fseek ftell