structure of a c program
- 2. Pre-processor statements Global variable declaration section Void main() { Local variable declaration section <statements> } Void sub-function() { Local variable declaration section <statements> }
- 3. These are the statements which can be executed before the program starts execution. This can be executed in the compile time. Compile time=compilation+linking. Example: #define #undefine #include #if #end if #else This is the 1st part of c code.
- 4. C language is a set of small small functions. Let us take 3 functions in a c code. The first function stores an integer value i.e a=10. So it can’t be used in remaining functions then it is called local variable.we define them at local variable declaration section. But if we want to use a value througout all the program then it should be declared at global variable declaration section and is called global variable
- 5. It is the main function of a c code Every c program consists of only one main function. C program is a collection of many functions. The first function we define is main function and remaining all are sub functions. This is the 3rd part of a c code.
- 6. To open any function we specify {. That means the function gets opened. To close any function we write}. This closes the function.
- 7. We can write the statements in c in this statements block.
- 8. The c code consists of many number of sub functions if we need. Soo we start the function ,we open,we declare local variables ,we state and we close the subfunction.
- 9. thank you