commit 277e79adc4d2b62556ce8a3720684e4b3e1e6d42
author Bram Moolenaar <Bram@vim.org> Tue Jun 04 19:16:29 2019 +0200
committer Bram Moolenaar <Bram@vim.org> Tue Jun 04 19:16:29 2019 +0200
tree 15c29d5d307cd7784ef4e435f20030d13aa6290d
parent c974022c31e790136c62586eb0b0ace2d02d2afb

patch 8.1.1463: gcc warns for uninitialized variable

Problem:    Gcc warns for uninitialized variable.
Solution:   Put usage inside "if".  (Ken Takata)

src/textprop.c

diff --git a/src/textprop.c b/src/textprop.c
index 2d7567c..f219b92 100644
--- a/src/textprop.c
+++ b/src/textprop.c
@@ -1240,9 +1240,12 @@
     if (line == NULL)
 	return;
     mch_memmove(line, newp, len);
-    l = oldproplen * sizeof(textprop_T);
-    mch_memmove(line + len, props, l);
-    len += l;
+    if (oldproplen > 0)
+    {
+	l = oldproplen * sizeof(textprop_T);
+	mch_memmove(line + len, props, l);
+	len += l;
+    }
 
     for (i = 0; i < count - 1; ++i)
 	if (prop_lines[i] != NULL)