ncurses 6.4 - patch 20230624

[ncurses.git] / test / demo_defkey.c

diff --git a/test/demo_defkey.c b/test/demo_defkey.c
index 44d60dc936730f4c5e412c04ed0be79b9d97b76e..bb81263891196110d39541dd19053b4c82e8cfb8 100644 (file)
--- a/test/demo_defkey.c
+++ b/test/demo_defkey.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright 2018-2020,2022 Thomas E. Dickey                                *
+ * Copyright 2018-2022,2023 Thomas E. Dickey                                *
  * Copyright 2002-2016,2017 Free Software Foundation, Inc.                  *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
@@ -27,7 +27,7 @@
  * authorization.                                                           *
  ****************************************************************************/
 /*
- * $Id: demo_defkey.c,v 1.33 2022/12/10 23:31:31 tom Exp $
+ * $Id: demo_defkey.c,v 1.34 2023/06/24 15:37:17 tom Exp $
  *
  * Demonstrate the define_key() function.
  * Thomas Dickey - 2002/11/23
@@ -100,7 +100,7 @@ visible(const char *string)
 {
     char *result = 0;
 
-    if (string != 0 && *string != '\0') {
+    if (VALID_STRING(string) && *string != '\0') {
        int pass;
        int n;
        size_t need = 1;
@@ -185,7 +185,7 @@ duplicate(WINDOW *win, NCURSES_CONST char *name, int code)
 {
     char *value = tigetstr(name);
 
-    if (value != 0) {
+    if (VALID_STRING(value)) {
        const char *prefix = 0;
 
        if (!(strncmp) (value, "\033[", (size_t) 2)) {