The arithmetic operators in OpenROAD combine numeric expressions into new expressions. These operators are listed in the following table:

The following are examples:

In addition to standard arithmetic, OpenROAD supports date arithmetic. For example, if start_date is a date field, OpenROAD can compute the result value for the following statement:

The precedence of operators in expressions is as follows (highest to lowest):

Operators are processed from left to right to control equal precedence.

For example, the following expression has a value of 14 because the multiplication operator (*) has precedence over the addition operator (+):

You can use parentheses to force alternate precedence. For example, placing parentheses around the expression from the previous example alters its value to 20:

Take care when dividing either a float variable into an integer literal constant or an integer literal constant into a float variable, as the result is of the float type but rounded down to the nearest integer.