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This is documentation for Caché & Ensemble. See the InterSystems IRIS version of this content.

For information on migrating to InterSystems IRIS, see Why Migrate to InterSystems IRIS?

Negation

You can use the negation operator either outside a parenthesized condition (as we did on the previous page), or combined with the relational operators.

Negation
Operator Operation Examples of true conditions
'= Not equal. if (2 '= 3) || '(2 = 3) {write "unequal"}
'> Less than or equal. (Literally “not greater than”). if (2 '> 3) || '(2 > 3) {write "less than or equal"}
'< Greater than or equal. (Literally “not less than”). if (3 '< 3) || '(3 < 3) {write "greater than or equal"}
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