Table of Contents

• 1. Relational and Boolean
• 2. Overview
• 3. Commands
• 4. See Also

1. Relational and Boolean

Commands for comparing objects and performing logical and bitwise operations.

2. Overview

Equality operators compare objects, ordered comparisons accept numbers or strings, and logical operators also support bitwise operations on integers. All commands in this category are available in PostScript Level 1 and higher.

3. Commands

Command	Description
eq	Test two objects for equality.
ne	Test two objects for inequality.
ge	Test whether the first operand is greater than or equal to the second.
gt	Test whether the first operand is greater than the second.
le	Test whether the first operand is less than or equal to the second.
lt	Test whether the first operand is less than the second.
and	Compute logical or bitwise AND.
or	Compute logical or bitwise inclusive OR.
xor	Compute logical or bitwise exclusive OR.
not	Negate a boolean or complement the bits of an integer.
true	Push the boolean value true.
false	Push the boolean value false.

4. See Also

• Command Reference Overview