* 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

ChangeLog

@@ -1,3 +1,8 @@
+Mon Oct 18 11:29:32 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (rb_io_flags_mode, rb_io_mode_flags): distinguish whether file
+	  not existing is created.  [ruby-dev:24505]
+
 Mon Oct 18 07:26:21 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* file.c (rb_file_truncate): discard read buffer before truncation.

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:

rubyio.h

@@ -31,6 +31,7 @@ typedef struct OpenFile {
 #define FMODE_WRITABLE  2
 #define FMODE_READWRITE 3
 #define FMODE_APPEND   64
+#define FMODE_CREATE  128
 #define FMODE_BINMODE   4
 #define FMODE_SYNC      8
 #define FMODE_WBUF     16