+ X/Open defines no error conditions. In this implementa-
+ tion
+
+ <STRONG>del_curterm</STRONG>
+ returns an error if its terminal parameter is
+ null.
+
+ <STRONG>restartterm</STRONG>
+ returns an error if the associated call to <STRONG>se-</STRONG>
+ <STRONG>tupterm</STRONG> returns an error.
+
+ <STRONG>setupterm</STRONG>
+ returns an error if it cannot allocate enough
+ memory, or create the initial windows (stdscr,
+ curscr, newscr). Other error conditions are
+ documented above.
+