- The function <STRONG>menu_pattern</STRONG> returns <STRONG>NULL</STRONG> on error. The
- function <STRONG>set_menu_pattern</STRONG> may return the following error
- codes:
+ The function <STRONG>menu_pattern</STRONG> returns a pointer, which is <STRONG>NULL</STRONG>
+ if the <EM>menu</EM> parameter is <STRONG>NULL</STRONG>. Otherwise, it is a pointer
+ to a string which is empty if no pattern has been set. It
+ does not set errno.