View source for Intro To C++/Playing with '''''operator'''''

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==Basic Math==
C++ can be used to do basic math. The operators used in the basic math are listed in the table below.
{| class="wikitable"
|-
!colspan="2"|Operator!! Operation 
|-
|rowspan="7"|Arithmetic Operator
|style="text-align: center;"|<math> +</math> || addition 
|-
|style="text-align: center;"|<math> -</math>|| Substraction 
|-
|style="text-align: center;"|<math> +</math>|| Multiplication 
|-
|style="text-align: center;"|<math> -</math>|| Division 
|-
|style="text-align: center;"|<math> \%</math>|| Modulus 
|-
|style="text-align: center;"|<math> ++</math>|| Increment 
|-
|style="text-align: center;"|<math> --</math> || Decrement
|-
|rowspan="6"|Assignment Operator
|style="text-align: center;"|<math> =</math> ||"<math> a=b</math>" is equivalent to "<math> a=b</math>"
|-
|style="text-align: center;"|<math> +=</math> ||"<math> a+=b</math>" is equivalent to "<math> a=a+b</math>"
|-
|style="text-align: center;"|<math> -=</math>||"<math> a-=b</math>" is equivalent to "<math> a=a-b</math>"
|-
|style="text-align: center;"|<math> *=</math> ||"<math> a+=b</math>" is equivalent to "<math> a=a*b</math>"
|-
|style="text-align: center;"|<math> /=</math>||"<math> a/=b</math>" is equivalent to "<math> a=a/b</math>"
|-
|style="text-align: center;"|<math> \%=</math>||"<math> a\%=b</math>" is equivalent to "<math> a=a\%b</math>"
|-
|rowspan="6"|Comparison Operator
|style="text-align: center;"|<math> ==</math>|| Equality 
|-
|style="text-align: center;"|<math> !=</math>|| Inequality 
|-
|style="text-align: center;"|<math> > </math>||Greater than
|-
|style="text-align: center;"|<math> < </math>||Less than
|-
|style="text-align: center;"|<math> >= </math>|| Greater than or equal to
|-
|style="text-align: center;"|<math> <= </math>|| Less than or equal to 
|-
|rowspan="3"|Logical Operator
|style="text-align: center;"|<math> \&\& </math> || Logical AND 
|-
|style="text-align: center;"|<math> || </math> || Logical OR 
|-
|style="text-align: center;"|<math> ! </math> || Logical NOT  
|}
Basic math operators in C++ have some distinguishing features:
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Part of Basic math operation is demonstrated in the C++ program below:
<syntaxhighlight lang="cpp-qt">
</syntaxhighlight>

==Checking Size==
The memory size of any variable can be discovered using the C++ '''sizeof''' operation.The '''sizeof''' operator syntax is look like this:

'''sizeof(var)'''

The '''sizeof''' operator is demonstrated in the program as follows:
<syntaxhighlight lang="cpp-qt">
</syntaxhighlight>

==Casting Data Types==
Any data-types except "string" could be converted to another data type through "casting". Casting syntax in C++ looks like this:

'''variable-name=static-cast <data-type> variable-name'''

Casting with C++ form is demonstrated in the program as follows:
<syntaxhighlight lang="cpp-qt">
</syntaxhighlight>

==Further reading==