The value of a default argument in a function header can be an expression. True or false?
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The value of a default argument in a function header can be an expression. True or false?
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- Mark the following statements as true or false: a. To use a predefined function in a program, you need to know only the name of the function and how to use it. (1) b. A value-returning function returns only one value. (2, 3) c. Parameters allow you to use different values each time the function is called. (2, 7, 9) d. When a return statement executes in a user-defined function, the function immediately exits. (3, 4) e. A value-returning function returns only integer values. (4) f. A variable name cannot be passed to a value parameter. (3, 6) g. If a C++ function does not use parameters, parentheses around the empty parameter list are still required. (2, 3, 6) h. In C + + , the names of the corresponding formal and actual parameters must be the same. (3, 4, 6) i. A function that changes the value of a reference parameter also changes the value of the actual parameter. (7) j. Whenever the value of a reference parameter changes, the value of the actual parameter changes. (7) k. In C++, function definitions can be nested; that is, the definition of one function can be enclosed in the body of another function. (9) l. Using global variables in a program is a better programming style than using local variables, because extra variables can be avoided. (10) m. In a program, global constants are as dangerous as global variables. (10) n. The memory for a static variable remains allocated between function calls. (11)The keyword_______ is used in a function header to indicate that a function does not return a value or to indicate that a function contains no parameters.When calling a function with several arguments, parameter order matters.
- c++ If you pass a variable by ________________ to a function, the function will have access to the parameter’s original argument. Changes to the parameter are also made to the argument.C++ If you pass a variable by ________________ to a function, the function will make a local copy of that variable and use that copy throughout the function’s execution. Changes to the parameter are not made to the argument.2. What data type would you use to allow a function to receive an Int or nil value as its parameter? func display(num: ____ ) { if num == nil { print("Not a number") } else { print(num) } } display(num: 5) display(num: nil)
- Create a function, declare and define a static variable in it! Increase the value of the variable and print it out. Call the function in the main() several times! What's happening? ( in C language)Data type can be determined using 'data_type' built in function? True/ FalseYou cannot have both keyword arguments and non-keyword arguments in a function call.
- Each parameter in a function header specifies both a(n) _____________and a(n)________________Examine the following function header, and then write a statement that calls the function, passing 12 as an argument.def show_value(quantity):The following statement calls a function called half(), which returns a value that is half of (float) the argument: half(5) >>>2.5 Write the code for the half() function. The program should have at least two functions (main and one more). Style (headers, names of variables/parameters/arguments, indentation) needs to be correct.