In C, what is the primary purpose of the indirection operator?
Question
In C, what is the primary purpose of the indirection operator?
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:
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Declare a pointer variable: A pointer is a variable that stores the memory address of another variable. For example,
int *p;Here,pis a pointer to an integer. -
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,pnow holds the address ofx. -
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,ywill be assigned the value 10, which is the value stored at the address held byp.
So, the indirection operator is used to dereference a pointer, i.e., to access the value stored at the address held by the pointer.
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:
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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. -
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 pointerpusing the address-of operator (&):p = &x;. -
Use the indirection operator to access the value: Now,
pholds the address ofx. If you printp, it will output a memory address. But if you want to access the value stored at that address (i.e., the value ofx), you can use the indirection operator:*pwill output10, the value ofx.
So, the indirection operator is used to dereference a pointer, i.e., to access the value that the pointer points to.
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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