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Interlocked.Add Method (Int32%, Int32)

Silverlight

Adds two 32-bit integers and replaces the first integer with the sum, as an atomic operation.

Namespace: System.Threading
Assembly: mscorlib (in mscorlib.dll)

public static int Add(
	ref int location1,
	int value
)

Parameters

location1: Type: System.Int32%
A variable that contains the first value to be added. The sum of the two values is stored in location1.

value: Type: System.Int32
The value to be added to the integer at location1.

Return Value

Type: System.Int32
The new value stored at location1.

Exceptions

Exception	Condition
NullReferenceException	The address of location1 is a null pointer.

Remarks

This method handles an overflow condition by wrapping: If the value at location1 is Int32.MaxValue and value is 1, the result is Int32.MinValue; if value is 2, the result is (Int32.MinValue + 1); and so on. No exception is thrown.

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Reference

Interlocked Class

Add Overload

System.Threading Namespace

Other Resources

Managed Threading

Interlocked Operations

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