X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=include%2Fcurses.h.in;h=a417c7af95f66a64abaa8198c5429d34a2ea1709;hp=e3ce85ffc96647de9610da1db6f947260f917062;hb=1501ae2a13db0ffd2db8404c24aa5010a88ea91b;hpb=a20e6eb464be80b9cd8cae7ce925d27fe9c209ed

diff --git a/include/curses.h.in b/include/curses.h.in
index e3ce85ff..a417c7af 100644
--- a/include/curses.h.in
+++ b/include/curses.h.in
@@ -32,7 +32,7 @@
  *     and: Thomas E. Dickey                        1996-on                 *
  ****************************************************************************/
 
-/* $Id: curses.h.in,v 1.256 2017/08/11 17:47:51 tom Exp $ */
+/* $Id: curses.h.in,v 1.257 2017/11/21 00:11:37 tom Exp $ */
 
 #ifndef __NCURSES_H
 #define __NCURSES_H
@@ -884,6 +884,12 @@ extern NCURSES_EXPORT(char *) tparm_varargs (NCURSES_CONST char *, ...);	/* spec
 
 extern NCURSES_EXPORT(char *) tiparm (const char *, ...);		/* special */
 
+/*
+ * X/Open says this returns a bool; SVr4 also checked for out-of-range line.
+ * The macro provides compatibility:
+ */
+#define is_linetouched(w,l) ((!(w) || ((l) > getmaxy(w)) || ((l) < 0)) ? ERR : (is_linetouched)((w),(l)))
+
 /*
  * These functions are not in X/Open, but we use them in macro definitions:
  */