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    InterlockedDecrement

    Thread-safe decrement.

    Declaration

    Source position: systemh.inc line 1640

    function InterlockedDecrement(var Target: LongInt) : LongInt;

    function InterlockedDecrement(var Target: Pointer) : Pointer;external name 'FPC_INTERLOCKEDDECREMENT64';

    function InterlockedDecrement(var Target: Cardinal) : Cardinal;external name 'FPC_INTERLOCKEDDECREMENT';

    Description

    InterLockedDecrement decrements Target with 1 and returns the result. This is done in a thread-safe way. (i.e. only one processor is accessing the variable at a time).

    Errors

    None.

    See also

    Name Description
    InterLockedIncrement Thread-safe increment.
    InterLockedExchange Exchange 2 integers in a thread-safe way.
    InterLockedExchangeAdd Thread-safe add and exchange of 2 values.
    InterlockedCompareExchange Conditional exchange.