ncurses 6.4 - patch 20230625

[ncurses.git] / ncurses / tty / hardscroll.c

diff --git a/ncurses/tty/hardscroll.c b/ncurses/tty/hardscroll.c
index d66aa9946594b1184d8da2093c797a1c6ed2db9a..0c194b46330d9a0d475d823ee4c9b6b6d978f19b 100644 (file)
--- a/ncurses/tty/hardscroll.c
+++ b/ncurses/tty/hardscroll.c
@@ -148,7 +148,7 @@ AUTHOR
 
 #include <curses.priv.h>
 
-MODULE_ID("$Id: hardscroll.c,v 1.56 2023/06/24 22:55:24 tom Exp $")
+MODULE_ID("$Id: hardscroll.c,v 1.57 2023/06/25 15:39:32 tom Exp $")
 
 #if defined(SCROLLDEBUG) || defined(HASHDEBUG)
 
@@ -307,20 +307,27 @@ NCURSES_EXPORT(void)
 NCURSES_SP_NAME(_nc_linedump) (NCURSES_SP_DCL0)
 /* dump the state of the real and virtual oldnum fields */
 {
-    char *buf = 0;
-    size_t want = ((size_t) screen_lines(SP_PARM) + 1) * 4;
-    (void) SP_PARM;
-
-    if ((buf = typeMalloc(char, want)) != 0) {
-       int n;
-
-       *buf = '\0';
-       for (n = 0; n < screen_lines(SP_PARM); n++)
-           _nc_SPRINTF(buf + strlen(buf),
-                       _nc_SLIMIT(want - strlen(buf))
-                       " %02d", OLDNUM(SP_PARM, n));
-       TR(TRACE_UPDATE | TRACE_MOVE, ("virt %s", buf));
-       free(buf);
+    if (USE_TRACEF(TRACE_UPDATE | TRACE_MOVE)) {
+       char *buf = 0;
+       size_t want = ((size_t) screen_lines(SP_PARM) + 1) * 4;
+       (void) SP_PARM;
+
+       if ((buf = typeMalloc(char, want)) != 0) {
+           int n;
+
+           *buf = '\0';
+           for (n = 0; n < screen_lines(SP_PARM); n++) {
+               int number = OLDNUM(SP_PARM, n);
+               if (number >= -99 && number < 999) {
+                   _nc_SPRINTF(buf + strlen(buf),
+                               _nc_SLIMIT(want - strlen(buf))
+                               " %02d", number);
+               } else {
+                   strcat(buf, " ??");
+               }
+           }
+           free(buf);
+       }
     }
 }