Data Structures Using C, 2nd Edition by Pearson

8 Data Structures Using C

1.5 STRUCTURE OF A C PROGRAM

A simple program in C can be written as a module. More complex programs can be broken into sub-

modules. In C, all modules or subprograms are referred to as functions.

The structure of a typical C program is given below:

main ()

{

....;

....;

....;

}

Note:

(i) C is a case sensitive language, i.e., it distinguishes between upper case and lower case characters.

Thus, main() is different from Main(). In fact, most of the characters used in C are lowercase.

Hence, it is safest to type everything in lower case except when a programmer needs to capitalize

some text.

(ii) Every C program ...