Definition of pointer in C

Answer 1

In C Programming, a pointer is a variable that stores the memory address of another variable. Pointers allow for indirect access to the value stored at the memory location pointed to by the pointer. They are commonly used for dynamic memory allocation, as well as for passing arguments to functions by reference. Pointers are declared using the '' operator, and the value stored in a pointer can be accessed using the '' operator as well.

Answer 2

In the C programming language, a pointer is a variable that stores the memory address of another variable. It allows you to indirectly access and manipulate the value stored at that memory location.

Pointers are declared by using the asterisk (*) symbol before the variable name. For example, to declare an integer pointer named "ptr", you would write:

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int *ptr;

To assign the memory address of a variable to a pointer, you can use the address-of operator (&). For instance, if you have an integer variable named "num", you can assign its address to the pointer "ptr" as follows:

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int num = 10;

int *ptr = #

Now, the pointer "ptr" stores the memory address of the variable "num".

To access the value stored at the memory location pointed to by a pointer, you use the dereference operator (*) before the pointer variable. For example, to access the value of "num" through "ptr", you would write:

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int value = *ptr;

This would assign the value 10 to the variable "value" because "*ptr" dereferences the pointer and accesses the value at the memory address it points to.

Pointers are commonly used in C for various purposes, such as dynamic memory allocation, accessing arrays and strings, passing parameters to functions by reference, and implementing complex data structures like linked lists and trees. They provide flexibility and efficiency in memory management and manipulation within the C programming language.

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Answer 3

to store the address of variable