Decrements the specified variable and stores the result, as an atomic operation.
Assembly: mscorlib (in mscorlib.dll)
Public Shared Function Decrement ( _ ByRef location As Long _ ) As Long
public static long Decrement( ref long location )
public: static long long Decrement( long long% location )
static member Decrement : location:int64 byref -> int64
Parameters
- location
- Type: System.Int64%
The variable whose value is to be decremented.
| Exception | Condition |
|---|---|
| ArgumentNullException |
The address of location is a null pointer. |
This method handles an overflow condition by wrapping: if location = Int64.MinValue, location - 1 = Int64.MaxValue. No exception is thrown.
The Read method and the 64-bit overloads of the Increment, Decrement, and Add methods are truly atomic only on systems where a System.IntPtr is 64 bits long. On other systems, these methods are atomic with respect to each other, but not with respect to other means of accessing the data. Thus, to be thread safe on 32-bit systems, any access to a 64-bit value must be made through the members of the Interlocked class.
.NET Framework
Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0.NET Framework Client Profile
Supported in: 4, 3.5 SP1Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.