* string.c (rb_str_set_len): call rb_str_modify.

* file.c (realpath_rec): don't call rb_str_modify before
  rb_str_set_len.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26303 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/string.c b/string.c
index 78620b8048..29e84e3ffe 100644
--- a/string.c
+++ b/string.c
@@ -1667,6 +1667,7 @@ rb_str_unlocktmp(VALUE str)
 void
 rb_str_set_len(VALUE str, long len)
 {
+    rb_str_modify(str);
     STR_SET_LEN(str, len);
     RSTRING_PTR(str)[len] = '\0';
 }