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InterlockedCompareExchange Method (Double, Double, Double)
Compares two double-precision floating point numbers for equality and, if they are equal, replaces one of the values.

Namespace: System.Threading
Assembly: mscorlib (in mscorlib.dll) Version: 4.0.0.0
Syntax
C#
public static double CompareExchange(
	ref double location1,
	double value,
	double comparand
)

Parameters

location1
Type: SystemDouble
The destination, whose value is compared with comparand and possibly replaced.
value
Type: SystemDouble
The value that replaces the destination value if the comparison results in equality.
comparand
Type: SystemDouble
The value that is compared to the value at location1.

Return Value

Type: Double
The original value in location1.
Exceptions
ExceptionCondition
NullReferenceExceptionThe address of location1 is a null pointer.
See Also