# endif
extern void cstring_replaceLit (/*@unique@*/ cstring p_s, char *p_old, char *p_snew);
-extern char cstring_firstChar (cstring p_s);
-extern char cstring_secondChar (cstring p_s);
+extern char cstring_firstChar (cstring p_s) /*@*/ ;
+extern char cstring_secondChar (cstring p_s) /*@*/ ;
extern char cstring_lastChar (cstring p_s) /*@*/ ;
extern char cstring_getChar (cstring p_s, int p_n);
extern void cstring_setChar (cstring p_s, int p_n, char p_c);