* win32/win32.c (rb_chsize): no need to get the current file size.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@34315 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,7 @@
+Mon Jan 16 11:22:38 2012  Nobuyoshi Nakada  <[email protected]>
+
+	* win32/win32.c (rb_chsize): no need to get the current file size.
+
 Mon Jan 16 00:41:33 2012  Sokolov Yura  <[email protected]>
 
 	* st.c: st use function instead of macro.  In my current

win32/win32.c

@@ -4676,18 +4676,15 @@ rb_w32_uaccess(const char *path, int mode)
 static int
 rb_chsize(HANDLE h, off_t size)
 {
-    long upos, lpos, usize, lsize, uend, lend;
-    off_t end;
+    long upos, lpos, usize, lsize;
     int ret = -1;
     DWORD e;
 
-    if (((lpos = SetFilePointer(h, 0, (upos = 0, &upos), SEEK_CUR)) == -1L &&
-	 (e = GetLastError())) ||
-	((lend = GetFileSize(h, (DWORD *)&uend)) == -1L && (e = GetLastError()))) {
+    if ((lpos = SetFilePointer(h, 0, (upos = 0, &upos), SEEK_CUR)) == -1L &&
+	(e = GetLastError())) {
 	errno = map_errno(e);
 	return -1;
     }
-    end = ((off_t)uend << 32) | (unsigned long)lend;
     usize = (long)(size >> 32);
     lsize = (long)size;
     if (SetFilePointer(h, lsize, &usize, SEEK_SET) == (DWORD)-1L &&