--

[Compound Operators]

Description

Decrements the value of a variable by 1.

Syntax

x-- ;   // decrement x by one and returns the old value of x
--x ;   // decrement x by one and returns the new value of x

Parameters

x: variable. Allowed data types: integer, long (possibly unsigned)

Returns

The original or newly decremented value of the variable.

Example Code

x = 2;
y = --x;      // x now contains 1, y contains 1
y = x--;      // x contains 0, but y still contains 1

See also