C++ programming 48.In the function prototype void action(int& value); The argument value is said to be a ___________ parameter. 49.In the previous problem, suppose the function action updated its argument. True or false: the variable value in the caller would be updated. ________________ 50.True or false: the following two prototypes represent valid overloaded functions _________: double fna(double,int); float fna(float,int);

C++ programming 48.In the function prototype void action(int& value); The argument value is said to be a ___ parameter. 49.In the previous problem, suppose the function action updated its argument. True or false: the variable value in the caller would be updated. 50.True or false: the following two prototypes represent valid overloaded functions _: double fna(double,int); float fna(float,int);

C++ for Engineers and Scientists

4th Edition

ISBN:9781133187844

Author:Bronson, Gary J.

Publisher:Bronson, Gary J.

Chapter6: Modularity Using Functions

Section6.2: Returning A Single Value

Problem 13E

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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)
In C++ programming lanuage: Normally a function does not have access to a variable defined in another function. However, by using a ________________variable as a parameter, a function may change a variable that is defined in another function.
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