Caller Function

The function s return statement directs the procedure to return the result to the caller (usually the cell in which the function was entered). The return statement consists of an assignment statement in which the name of the function is equated to a value, e.g.,... 

Type the macro as shown in Figure 13-9. DegF is the argument passed by the function from the worksheet to the module (the Fahrenheit temperature) the single line of VBA code evaluates the Celsius temperature and returns the result to the caller (in this case, the worksheet cell in which the function is entered). 

If you use a worksheet function within VBA that returns an array, the lower array index will be 1. Such worksheet functions include LI NEST, TRANSPOSE, MINVERSE, MMULT. Other functions that return arrays include the VBA function Caller when used with a menu command or toolbutton. 

The choice of a service that meets the needs of the caller is performed by a component called service trader. This is a variation of a name server, where searching for services is done in terms of service type (the kind of service) and non-functional service properties. The CORBA specification includes a standard trading service, which has, in our view, a major drawback (e.g., for multimedia applications) It only performs a hard match (yes/no) of the service parameters onto the request parameters, and does not allow for selection of services that do not exactly fulfill the requirements but have almost the desired properties. 

Utility functions (military, medical, safety, and pragmatic applications, such as charging and controlling digital devices, caller ID and other smart phone apphcations, and visual feedback... 

Function Pre- and Postconditions. The specification of a C function in the sequential context can be seen as a contract between the caller of the function and the function itself and is given by pre- and postconditions. These are inserted between the function head and the function body. The precondition of a function is labeled with the keyword requires, and the postcondition is labeled with ensures. The keyword result represents the return value of the function. In the examples of the following sections, the reader will also encounter ownership relations asserted at the function level. 

The postcondition of this method (ensures clause in lines 4-7) directly matches the informal specification in the kernel reference manual This function sets the current thread s priority to newprio. Invalid or too high priorities are limited to the caller s task MCP. Upon success, a call to this function returns the current thread s priority before setting it to newprio. ... 

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