X-Git-Url: http://ncurses.scripts.mit.edu/?a=blobdiff_plain;f=ncurses%2Ftrace%2Fvisbuf.c;h=1093073f49be32e756b8ccfe4fa182a48abaece0;hb=ea40e3c5ce946583369749843ad134c3cb607fc7;hp=425810d644c4156efa7ade415aa2d46efe4f3177;hpb=8b06e371ed1bce3dd6f37138e6becb5e1a562fe0;p=ncurses.git

diff --git a/ncurses/trace/visbuf.c b/ncurses/trace/visbuf.c
index 425810d6..1093073f 100644
--- a/ncurses/trace/visbuf.c
+++ b/ncurses/trace/visbuf.c
@@ -42,7 +42,7 @@
 #include <tic.h>
 #include <ctype.h>
 
-MODULE_ID("$Id: visbuf.c,v 1.40 2012/02/22 22:40:24 tom Exp $")
+MODULE_ID("$Id: visbuf.c,v 1.42 2012/10/27 20:58:50 tom Exp $")
 
 #define NUM_VISBUFS 4
 
@@ -262,10 +262,12 @@ _nc_viswibuf(const wint_t *buf)
 	else
 	    mybuf = typeMalloc(wchar_t, mylen);
     }
-    for (n = 0; buf[n] != 0; ++n) {
-	mybuf[n] = (wchar_t) buf[n];
+    if (mybuf != 0) {
+	for (n = 0; buf[n] != 0; ++n) {
+	    mybuf[n] = (wchar_t) buf[n];
+	}
+	mybuf[n] = L'\0';
     }
-    mybuf[n] = L'\0';
 
     return _nc_viswbuf2(0, mybuf);
 }
@@ -338,7 +340,7 @@ _nc_viscbuf2(int bufnum, const NCURSES_CH_T * buf, int len)
 		{
 		    char temp[80];
 		    VisChar(temp, UChar(buf[j]), sizeof(temp));
-		    result = _nc_trace_bufcat(bufnum, temp);
+		    (void) _nc_trace_bufcat(bufnum, temp);
 		}
 #endif /* USE_WIDEC_SUPPORT */
 	    }