rtf_get_version - Returns the version of the library

       This  function fills in string the version of the library if line is 0. It fills at most len character in
       string including the terminating null byte (' '). If the implementation of library depends on other  non-
       standard  libraries,  it  will returns the version of them in subsequent lines (line > 0). If there is no
       more dependency, nothing is copied on string and 0 is returned by the function.

       rtf_get_version - Returns the version of the library

       Returns the number of characters copied on string.

EPFL                                                  2010                                    RTF_GET_VERSION(3)

#include<rtfilter.h>size_trtf_get_version(char*string,size_tlen,unsignedintline);