Difference Between Task And Function?

1.	Difference Between Task And Function?
Answer» Function: A function is unable to enable a task however functions can enable other functions. A function will carry out its required duty in zero simulation TIME. ( The program time will not be incremented during the function routine) Within a function, no event, delay or timing control statements are permitted In the invocation of a function their must be at least one argument to be passed. Functions will only RETURN a single value and can not use either output or inout statements. Tasks: Tasks are CAPABLE of enabling a function as well as enabling other versions of a Task Tasks also run with a zero simulation however they can if required be EXECUTED in a non zero simulation time. Tasks are allowed to contain any of these statements. A task is allowed to use zero or more ARGUMENTS which are of type output, input or inout. A Task is unable to return a value but has the facility to pass multiple values via the output and inout statements . Function: Tasks:

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Function:

A function is unable to enable a task however functions can enable other functions.
A function will carry out its required duty in zero simulation TIME. ( The program time will not be incremented during the function routine)
Within a function, no event, delay or timing control statements are permitted
In the invocation of a function their must be at least one argument to be passed.
Functions will only RETURN a single value and can not use either output or inout statements.

Tasks:

Tasks are CAPABLE of enabling a function as well as enabling other versions of a Task
Tasks also run with a zero simulation however they can if required be EXECUTED in a non zero simulation time.
Tasks are allowed to contain any of these statements.
A task is allowed to use zero or more ARGUMENTS which are of type output, input or inout.
A Task is unable to return a value but has the facility to pass multiple values via the output and inout statements .

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