BASIC PROGRAMS(Pointers)

 What is a pointer in C programming language:

It is the same as pointing something it's basically a pointer that points to the address of a memory box.

Eg: When we declare a variable or array or matrix it requires space to be operated, the CPU manages the memory by using a particular place for each variable and that place can be seen through a pointer. By knowing and excessing that place we can find many help full tricks for programming. E.g it is not possible to return more than one value from a function, so to return more than one value from a function we can use Global variable or pointers. Using global variables can be harmful as each function can't be trusted, so we try to make use of pointers.

If I declare a variable and store 5 in that variable then I can use a pointer to know its address in memory just look at the diagram below:

The value of the variable is 5 and its address is 100:

There are some basic programs that will make you easier to understand pointers:

1- Add and subtract pointer of the same type.

FOR CODE CLICK HERE: 👉👉 ADD and Subtract (pointers)

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2- Add two matrix using pointers and functions.

 

FOR CODE CLICK HERE: 👉👉 Add Matrix(pointers)

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