3609			Using the alert escape sequence '\\a'.
	K+R compatibility				REFERENCE - ISO:C90-5.2.2 Character Display Semantics

/*PRQA S 3123,3211,3625,3408 ++*/

    char ea = '\a';                     /* Message 3609 */
    char eb = '\b';
    char en = '\n';
    char ef = '\f';
    char er = '\r';
    char et = '\t';
    char ev = '\v';