usa	2010-08-02 12:25:12 +0900 (Mon, 02 Aug 2010)

  New Revision: 28833

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=28833

  Log:
    * file.c (file_expand_path): wrong condition. [ruby-core:31591]

  Modified files:
    trunk/ChangeLog
    trunk/file.c
    trunk/test/ruby/test_file_exhaustive.rb

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 28832)
+++ ChangeLog	(revision 28833)
@@ -1,3 +1,7 @@
+Mon Aug  2 12:22:22 2010  NAKAMURA Usaku  <usa@r...>
+
+	* file.c (file_expand_path): wrong condition. [ruby-core:31591]
+
 Mon Aug  2 05:34:48 2010  Tanaka Akira  <akr@f...>
 
 	* ext/pathname/pathname.c (path_realdirpath): Pathname#realdirpath
Index: test/ruby/test_file_exhaustive.rb
===================================================================
--- test/ruby/test_file_exhaustive.rb	(revision 28832)
+++ test/ruby/test_file_exhaustive.rb	(revision 28833)
@@ -393,6 +393,7 @@
       assert_equal(@file, File.expand_path(@file + " "))
       assert_equal(@file, File.expand_path(@file + "."))
       assert_equal(@file, File.expand_path(@file + "::$DATA"))
+      assert_match(/\Ac:\//i, File.expand_path('c:'), '[ruby-core:31591]')
     end
     assert_kind_of(String, File.expand_path("~"))
     assert_raise(ArgumentError) { File.expand_path("~foo_bar_baz_unknown_user_wahaha") }
Index: file.c
===================================================================
--- file.c	(revision 28832)
+++ file.c	(revision 28833)
@@ -2897,7 +2897,7 @@
 	else {
 	    /* specified drive, but not full path */
 	    int same = 0;
-	    if (!NIL_P(dname) || !not_same_drive(dname, s[0])) {
+	    if (!NIL_P(dname) && !not_same_drive(dname, s[0])) {
 		file_expand_path(dname, Qnil, abs_mode, result);
 		BUFINIT();
 		if (has_drive_letter(p) && TOLOWER(p[0]) == TOLOWER(s[0])) {

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