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Beginning C++ Variables
Written By Xinapse
For iExploit.org
[b]Difficulty:Easy
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-------[Intro
If you are familliar to programming, you will know it is essential to know how to use and declare variables. This is very simple, using only a tiny bit of code.
If you want to use a variable, firstly you will need to declare it, as in C++ the coder must declare it before he can use it. A variable has a type and a name,
for example

The "int" part declares the variable as an integer - a whole number, "mynumber" is the name that you refer to the variable throughout the program.
Once you have declared your variable you need to give it a value, you do this by simply writing

From now on the variable mynumber has the value 21, this can be used in mathematic functions throughout the program.

-------[Types of Variables
For example 21, this is a simple counting number, either positive or negative.
A potentially smaller version of int, uses less memory but with a smaller range.
A potentially larger version of int, using more memory, however with gcc there is no difference between int and long int.
An even large version of int, using even more memory.
A single precision real number eg 1.0F takes less memory than a double but with smaller range and less accuracy.
A standard floating point variable eg 1.0
A larger floating point double, on a pc this is used for the 80x86 floating point processor which is 80bits.
A single char variable stores a single alphabet or numberic character, but isnt suitable for arithmetic.
Same as a char but larger capable or storing other symbols like chinese.
A string of characters to form a phrase or sentence eg "Welcome to iExploit"
Logical controls such as true and false.

-------[Simple variable Program


Hope you enjoyed this, stay tuned for the next one