AssignmentWithOperator

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Assignment with Operator

Phix also provides some additional forms of the assignment statement.

To save typing, and to make your code a bit neater, you can combine assignment with one of the operators:

For example, instead of saying:

You can say:

Instead of saying:

You can say:

and instead of saying:

You can say:

In general, whenever you have an assignment of the form:

    <b><i>left-hand-side = left-hand-side op expression</i></b>

You can say:

    <b><i>left-hand-side op= expression</i></b>

where op is one of:    +   -   *   /   &

When the left-hand-side contains multiple subscripts/slices, the op= form will usually execute faster than the longer form. When you get used to it, you may find the op= form to be slightly more readable than the long form, since you do not have to visually compare the left-hand-side against the copy of itself on the right side.

Note the explicit assignment ':=' operator does not have any assignment with operator forms since the latter are already explicit assignment operations anyway.