* eval.c (mark_frame_adj): need to adjust argv pointer if using

  system's alloca. [ruby-core:01503]

* io.c (rb_f_gets): should call next_argv() before type check
  current_file. [ruby-list:38336]

* eval.c (proc_invoke): should retrieve retval when pcall is true.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4509 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 9 insertions, 9 deletions

diff --git a/string.c b/string.c
index 248813e233..67f4f8dcc3 100644
--- a/string.c
+++ b/string.c
@@ -1807,16 +1807,16 @@ rb_str_reverse_bang(str)
     char *s, *e;
     char c;
 
-    if (RSTRING(str)->len <= 1) return Qnil;
-    rb_str_modify(str);
-    s = RSTRING(str)->ptr;
-    e = s + RSTRING(str)->len - 1;
-    while (s < e) {
-	c = *s;
-	*s++ = *e;
-	*e-- = c;
+    if (RSTRING(str)->len > 1) {
+	rb_str_modify(str);
+	s = RSTRING(str)->ptr;
+	e = s + RSTRING(str)->len - 1;
+	while (s < e) {
+	    c = *s;
+	    *s++ = *e;
+	    *e-- = c;
+	}
     }
-
     return str;
 }