string.c: term fill

* string.c (rb_str_plus): fill wchar terminator.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48758 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/string.c b/string.c
index 5cb7233637..44a8c28812 100644
--- a/string.c
+++ b/string.c
@@ -1455,7 +1455,7 @@ rb_str_plus(VALUE str1, VALUE str2)
     ptr3 = RSTRING_PTR(str3);
     memcpy(ptr3, ptr1, len1);
     memcpy(ptr3+len1, ptr2, len2);
-    ptr3[len1+len2] = '\0';
+    TERM_FILL(&ptr3[len1+len2], rb_enc_mbminlen(enc));
 
     if (OBJ_TAINTED(str1) || OBJ_TAINTED(str2))
 	OBJ_TAINT(str3);