Apr28

C++ PROGRAM ANATOMY

by glenda on April 28th, 2011 at 4:06 am
Posted In: Tutorials, C++, Tutorials, C++, C++ PROGRAM ANATOMY, Tutorials


* ANATOMY OF A C++ PROGRAM *

#include<iostream> /* #include directive -preprocessor directive- */
using namespace std; /* namespace /*

int main (void) /* main functionn */
{
cout<<“HELLO WORLD!!!”; /* cout -function body- */
return 0; /* retur 0 statement -function body- */
}

MAIN FUNCTION group of related instructions, also called statements which together perform a particular task.
FUNCTION BODY each of the related instructions or statements which belong to the main function are contained with in the body.
COUT refers to the directions in which cout sends a stream of data.
RETURN 0 STATEMENT tells the operating system that the program ended normally.
# INCLUDE DIRECTIVE called “preprocessor directive” to start at the main function.
NAMESPACE c++ uses namespaces to organize different names used in programs.

COMPUTER PROGRAM – a step-by-step instruction written by a computer programmer.
PROGRAMMING LANGUAGE – automate instructions; are program language can cover many machine language instructions.

* 3 programs used to translate your sourcecode into an executable file that computer can run*
1. PREPROCESSOR – a program that scans the sourcecode for preprocessor directive such as include directives.
2. COMPILER – another program that translates the preprocessor sourcecode into corresponding machine language instructions
which are stored in a separate file, called an object file having an obj. extension.
3. LINKER – uses runtime library or the ability to interact with external hardware.

└ Tags: