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() Function Call Operator

Function call operator allows you to call an internal or external function.

Syntax:

id( [param-list] )
param-list: expr [,expr ,[…] ]

The following code fragment illustrates the use of the function call operator:

struct A
{
    int Array1[int(10.2)];         // Call an internal cast function
    int Array2[ExternalFunction()];  // Call an external function with no parameters
};    

External function calls are never optimized at compile-time. All expressions containing external function calls will be computed at run-time.