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Introduction

Built-in functions and subroutines are procedures provided by the Open PL/I language. They can be used wherever an expression is valid.

The built-in functions and subroutines provided by Open PL/I can be grouped into the following classes:

This section describes each built-in. The built-ins are presented in alphabetical order by name. Each built-in definition includes a purpose, syntax, and description (the effect of the built-in). Examples (one or more examples of the built-in usage and results) and restrictions (any restrictions in the use of the built-in) may also be included.

Arguments to built-ins are effectively passed by value, that is, no alteration of the arguments is done.

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