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In C, what is the primary purpose of the indirection operator?

Question

In C, what is the primary purpose of the indirection operator?

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Solution 1

The primary purpose of the indirection operator (*) in C is to access the value stored at a particular memory address. This operator is used in conjunction with pointers. Here's how it works:

  1. Declare a pointer variable: A pointer is a variable that stores the memory address of another variable. For example, int *p; Here, p is a pointer to an integer.

  2. Assign the address of a variable to the pointer: You can get the address of a variable using the address-of operator (&). For example, int x = 10; p = &x; Here, p now holds the address of x.

  3. Use the indirection operator to access the value: Now, you can use the indirection operator to get the value stored at the address held by the pointer. For example, int y = *p; Here, y will be assigned the value 10, which is the value stored at the address held by p.

So, the indirection operator is used to dereference a pointer, i.e., to access the value stored at the address held by the pointer.

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Solution 2

The primary purpose of the indirection operator (*) in C is to access the value stored at a particular memory address. This operator is used in conjunction with pointers, which are variables that store memory addresses.

Here's a step-by-step explanation:

  1. Declare a pointer: In C, you can declare a pointer using the asterisk (*) before the variable name. For example, int *p; declares a pointer to an integer.

  2. Assign a memory address to the pointer: You can assign the address of another variable to the pointer. For example, if you have an integer int x = 10;, you can assign its address to the pointer p using the address-of operator (&): p = &x;.

  3. Use the indirection operator to access the value: Now, p holds the address of x. If you print p, it will output a memory address. But if you want to access the value stored at that address (i.e., the value of x), you can use the indirection operator: *p will output 10, the value of x.

So, the indirection operator is used to dereference a pointer, i.e., to access the value that the pointer points to.

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Similar Questions

In C, what is the primary purpose of the indirection operator?Marks : 1Negative Marks : 0Answer hereTo create new variablesTo obtain the memory address of a variableTo access the value stored at a memory addressTo perform arithmetic operations

Multi Choice Type QuestionIn C, what is the primary purpose of the indirection operator?Marks : 1Negative Marks : 0Answer hereTo create new variablesTo obtain the memory address of a variableTo access the value stored at a memory addressTo perform arithmetic operations

What happens if the indirection operator is applied to a pointer that is not initialized in C?

The indirection operator (*) returns the value stored in the address that the operand contains. The expression is itself an lvalue.The indirection and address-of operators are inverses of one another. The result of *&x is x.

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