* io.c (rb_io_flags_mode, rb_io_mode_flags): distinguish whether file

  not existing is created.  [ruby-dev:24505]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@7059 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 5 insertions, 2 deletions

diff --git a/io.c b/io.c
index 1f2a351624..e1acaca1a8 100644
--- a/io.c
+++ b/io.c
@@ -2304,6 +2304,9 @@ rb_io_flags_mode(flags)
       case FMODE_WRITABLE:
 	return MODE_BINMODE("w", "wb");
       case FMODE_READWRITE:
+	if (flags & FMODE_CREATE) {
+	    return MODE_BINMODE("w+", "wb+");
+	}
 	return MODE_BINMODE("r+", "rb+");
     }
     rb_raise(rb_eArgError, "illegal access mode %o", flags);
@@ -2322,10 +2325,10 @@ rb_io_mode_flags(mode)
 	flags |= FMODE_READABLE;
 	break;
       case 'w':
-	flags |= FMODE_WRITABLE;
+	flags |= FMODE_WRITABLE | FMODE_CREATE;
 	break;
       case 'a':
-	flags |= FMODE_WRITABLE | FMODE_APPEND;
+	flags |= FMODE_WRITABLE | FMODE_APPEND | FMODE_CREATE;
 	break;
       default:
       error: