How to Read Syntax Diagrams

Throughout this document, diagrams illustrate XL Fortran syntax. This section will help you to interpret and use those diagrams.

If a variable or user-specified name ends in _list, you can provide a list of these terms separated by commas.

You must enter punctuation marks, parentheses, arithmetic operators, and other special characters as part of the syntax.

Sample Syntax Diagram

The following is an example of a syntax diagram with an interpretation:



                                              .-,-.
           (1)                                V   |
>>-EXAMPLE-------char_constant--+-a-+--+---+----e-+------------->
                                '-b-'  +-c-+
                                       '-d-'
 
>--name_list---------------------------------------------------><
 
 


Notes:


  1. IBM Extension


Interpret the diagram as follows:

IBM Copyright 2003