* io.c (rb_f_backquote): need not to check nil result.

  [ruby-core:02078]

* io.c (rb_io_getline): should return nil on eof, even when nil rs is
  specified. [ruby-core:02077]

* pack.c (pack_pack): add sign check for 'i', and 'l'.
  [ruby-dev:22427]

* bignum.c (rb_quad_pack): add range check for 'quad int'.


git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@5308 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 2 deletions

diff --git a/io.c b/io.c
index b4f46dacc..355f43061 100644
--- a/io.c
+++ b/io.c
@@ -1027,6 +1027,7 @@ rb_io_getline(rs, fptr)
 
     rb_io_check_readable(fptr);
     if (NIL_P(rs)) {
+	if (feof(fptr->f)) return Qnil;
 	str = read_all(fptr, 0, Qnil);
     }
     else if (rs == rb_default_rs) {
@@ -3223,10 +3224,8 @@ rb_f_backquote(obj, str)
 
     GetOpenFile(port, fptr);
     result = read_all(fptr, remain_size(fptr), Qnil);
-
     rb_io_close(port);
 
-    if (NIL_P(result)) return rb_str_new(0,0);
     return result;
 }