True // Constant, the default value for b
Here (from left to right in the header) :īool b // Second formal parameter b of the double type Parameters passed to the function can have default values that are defined by the constant of the corresponding type: int My_function ( int a, bool b = true, int c = 1, double d = 0.5 ) // Example of function descriptionĪ = a + b * c + d 2 // Function body operator Int a // First formal parameter a of the int typeĭouble b // Second formal parameter b of the double type Here (from left to right in the header): Int c = a * b + 3 // Function body operator The amount, type and order of the passed parameters in the function call must be the same as those of formal parameters specified in the function description (the only exception will be the call to a function that has parameters with the default values): int My_function ( int a, double b ) // Example of function description As formal parameters in the function header, you can specify only variables (but not constants, other function calls or expressions). The amount of parameters passed to function is limited and cannot exceed 64. The parameters in the list are given separated by commas.
#Codevision return code
Program code // A function body may consist. Return_value_type Function_name (List of formal parameters )//Header The function body can consist of simple and/or compound operators and calls to other functions, and is enclosed in parentheses. If a function must not return any value, its type should be named void. The function header contains the type of the return value, the function name, and the list of formal parameters enclosed in parentheses. Format of Function DescriptionĪ function description consists of two basic parts: function header and function body. Special functions, if any, must be described in a program, too. User-defined functions must be described in any program. Standard functions are not described in programs. Function Description and Operator 'return'Īs to the necessity to specify functions in a program, they can be divided into 2 groups: Functions that are not described in a program, and functions that must be described in a program.
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