The switch statement

A switch statement executes one of several different code sections depending on the value of an expression.

One or more case labels precede each code section. Each case must be a constant and unique within the switch statement. The switch statement evaluates the expression, and then looks for a matching case label. It will execute any statements following the matching case until either a break statement or the end of the switch is reached. A single default label may also be used - it will match any value not already appearing in a case label. A switch statement uses the syntax shown below.

switch (expression) body

Additional information about the case and default labels and the break statement can be found below.

• The case label
• The default label
• The break statement

A typical switch statement might look like this:

switch(x)
{
        case 1:
                // do something when x is 1
                break;
        case 2:
        case 3:
                // do something else when x is 2 or 3
                break;
        default:
                // do this when x is not 1, 2, or 3
                break;
}

NXC also supports using string types in the switch expression and constant strings in case labels.