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cpp/third_party/postgresql/include/pgsql/server/access/sdir.h
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ihtiandr9 (note)
build Win. Supported only x64
25 авг 2025, 05:07
25 авг 2025, 05:07
ea9dcd2
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/*------------------------------------------------------------------------- * * sdir.h * POSTGRES scan direction definitions. * * * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * src/include/access/sdir.h * *------------------------------------------------------------------------- */ #ifndef SDIR_H #define SDIR_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 } ScanDirection; /* * ScanDirectionIsValid * True iff scan direction is valid. */ #define ScanDirectionIsValid(direction) \ ((bool) (BackwardScanDirection <= (direction) && \ (direction) <= ForwardScanDirection)) /* * ScanDirectionIsBackward * True iff scan direction is backward. */ #define ScanDirectionIsBackward(direction) \ ((bool) ((direction) == BackwardScanDirection)) /* * ScanDirectionIsNoMovement * True iff scan direction indicates no movement. */ #define ScanDirectionIsNoMovement(direction) \ ((bool) ((direction) == NoMovementScanDirection)) /* * ScanDirectionIsForward * True iff scan direction is forward. */ #define ScanDirectionIsForward(direction) \ ((bool) ((direction) == ForwardScanDirection)) #endif /* SDIR_H */