* io.c (rb_io_ctl), parse.y (LVAR_USED): suppress warnings.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29469 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/io.c b/io.c
index 21d6d12c9c..8838bba7e0 100644
--- a/io.c
+++ b/io.c
@@ -7456,7 +7456,7 @@ rb_io_ctl(VALUE io, VALUE req, VALUE arg, int io_p)
 		rb_str_resize(arg, len+1);
 	    }
 	    RSTRING_PTR(arg)[len] = 17;	/* a little sanity check here */
-	    narg = (long)RSTRING_PTR(arg);
+	    narg = (long)(SIGNED_VALUE)RSTRING_PTR(arg);
 	}
     }
     GetOpenFile(io, fptr);