Autoincrement and Autodecrement Operators

     i++           =>     i = i + 1
     i--           =>     i = i - 1

These are post increment and post decrement operators. In general, they take the form:

     <Lvalue>++
     <Lvalue>--

We can also have pre increment and pre decrement operators.

     ++i           =>     i = i + 1
     --i           =>     i = i - 1

The difference is that the "post" operators evaluate to the value of i before the update; while the "pre" operators evaluate the the value if i after the update.

For example:

     i = j = 1;

     if( i++ > 1) ...

is false, but

     if( ++j > 1) ...

is true.

to Overview.