CHAPTER 3

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OUTCOMES:
Student should be able to:
0Explain the general form 0f C
structure
0Write, Compile & Execute of C
programm...

The general form of C
programme
3

Follow 3 steps:
0 Enter the programme
0 Compile the programme
0 Run the programme
2 terms:
0 Source code – the human ...

Write the general form of C
programme
0 Entering the programme
The name of the file that holds the source code for the ...

0 Compiling the programme
You can compile your .cpp file depends on your
compiler & what option you are using
e.g:
Mic...

0 Execute the debugged programme
After a C programme has been compiled, it is ready to
be run
Since the output from a C...

Pre-processor directives and
header files
0 Pre-processor
Is the directive to enables the programme to use certain
fun...

#include
0 replaces by the whole content of specified file
0 2 ways to specify a file:
9
#include “stdio.h”
the file ...

serves to generate define constants or macros
10
#define
#define variable_name value
#define pepsi 2.50
#define grape...

Create block {…} in Main
function
a function is a block of statements that is part of large
programmes
0 Function main...

0 Function block { }
the function body  called block can be any size
{ - begin block
} - end block
12

Create return statement in
programmes
0 terminates the execution of a function and returns
control to the calling funct...

Comments
0 useful for a variety of purposes
0 provide the easiest way to point out specific parts of
code
0 2 forms:
...

Single line comment
0 useful for simple ‘side’ notes that explain what certain
parts of the code do
0 places: next to v...

0 Example:
//this is first line
//this is second line
//this is third line
//this is fourth line
16

Multi line comment
0 most useful for long explanation of code
0 can be use as:
copyright/licensing notices
explain the...

0 Example:
/*this is first line
this is second line
this is third line
this is fourth line*/
18

Create comments in programme
19
/*This is a programme that computes the sum of two integer
numbers*/
#include<stdio.h>...

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