/*-------------------------------------------------------------------------
*
- * sdir.h--
- * POSTGRES scan direction definitions.
+ * sdir.h
+ * POSTGRES scan direction definitions.
*
*
- * Copyright (c) 1994, Regents of the University of California
+ * Portions Copyright (c) 1996-2004, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: sdir.h,v 1.1 1996/08/27 21:50:23 scrappy Exp $
+ * $PostgreSQL: pgsql/src/include/access/sdir.h,v 1.16 2004/08/29 04:13:03 momjian Exp $
*
*-------------------------------------------------------------------------
*/
-#ifndef SDIR_H
+#ifndef SDIR_H
#define SDIR_H
-#include "c.h"
/*
* ScanDirection was an int8 for no apparent reason. I kept the original
* values because I'm not sure if I'll break anything otherwise. -ay 2/95
*/
-typedef enum ScanDirection {
- BackwardScanDirection = -1,
- NoMovementScanDirection = 0,
- ForwardScanDirection = 1
+typedef enum ScanDirection
+{
+ BackwardScanDirection = -1,
+ NoMovementScanDirection = 0,
+ ForwardScanDirection = 1
} ScanDirection;
/*
- * ScanDirectionIsValid --
- * True iff scan direction is valid.
+ * ScanDirectionIsValid
+ * True iff scan direction is valid.
*/
#define ScanDirectionIsValid(direction) \
- ((bool) (BackwardScanDirection <= direction && \
- direction <= ForwardScanDirection))
+ ((bool) (BackwardScanDirection <= (direction) && \
+ (direction) <= ForwardScanDirection))
/*
- * ScanDirectionIsBackward --
- * True iff scan direction is backward.
+ * ScanDirectionIsBackward
+ * True iff scan direction is backward.
*/
#define ScanDirectionIsBackward(direction) \
- ((bool) (direction == BackwardScanDirection))
+ ((bool) ((direction) == BackwardScanDirection))
/*
- * ScanDirectionIsNoMovement --
- * True iff scan direction indicates no movement.
+ * ScanDirectionIsNoMovement
+ * True iff scan direction indicates no movement.
*/
#define ScanDirectionIsNoMovement(direction) \
- ((bool) (direction == NoMovementScanDirection))
+ ((bool) ((direction) == NoMovementScanDirection))
/*
- * ScanDirectionIsForward --
- * True iff scan direction is forward.
+ * ScanDirectionIsForward
+ * True iff scan direction is forward.
*/
#define ScanDirectionIsForward(direction) \
- ((bool) (direction == ForwardScanDirection))
+ ((bool) ((direction) == ForwardScanDirection))
-#endif /* SDIR_H */
+#endif /* SDIR_H */