What operator is used to access members of a structure through a pointer?单项选择题

A

->

B

.

C

*

D

&

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Which operator is used to get the address of a variable?

What is a pointer to a pointer?

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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