Questions
Single choice
What is a pointer to a pointer?
Options
A.A pointer that stores the address of another pointer
B.A function returning a pointer
C.A pointer to a constant
D.A pointer created by malloc
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Step-by-Step Analysis
Question: What is a pointer to a pointer?
Options:
1) A pointer that stores the address of another pointer
2) A function returning a pointer
3) A pointer to a constant
4) A pointer created by malloc
Option 1: A pointer that stores the address of another pointer. This description matches the standard definition of a pointer to a pointer (often called a......Login to view full explanationLog in for full answers
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Consider the following Ada program. procedure Pointers is X : access Integer := new Integer'(5); Y : access Integer := X; begin Y.all := 10; end Pointers; Variable Y is called an [ Select ] reference alias duplicate pointer for X because [ Select ] because X and Y both refer to the same memory location because X and Y refer to distinct (separate) memory locations because Y refers to the memory that holds the pointer X because X and Y are both pointers . After this program finishes executing, the statement "X.all = 5" is false
Consider the following Ada program. procedure Pointers is X : access Integer := new Integer'(5); Y : access Integer := X; begin Y.all := 10; end Pointers; Variable Y is called an [ Select ] reference alias duplicate pointer for X because [ Select ] because X and Y both refer to the same memory location because X and Y refer to distinct (separate) memory locations because Y refers to the memory that holds the pointer X because X and Y are both pointers . After this program finishes executing, the statement "X.all = 5" is [ Select ] true false
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