XL Fortran for AIX 8.1
This document is intended primarily as a reference tool, not as a Fortran
or programming tutorial. Programmers using this document should have
some knowledge of Fortran concepts and have previous experience in writing
Fortran application programs.
The document is divided into three main parts:
- Concepts and Elements provides some general
background on the items and constructs you can use to write XL Fortran
- Statements and Directives provides an
alphabetical reference of all XL Fortran statements. This section also
provides reference information on both comment form and noncomment form
directives, including the symmetric multiprocessing (SMP) directives.
- Each statement description includes a brief explanation of purpose, a
syntax diagram, a detailed discussion of rules concerning the statement,
examples, and references to any related information. This section is
particularly useful to programmers who know which statement they need, but
want details on syntax or rules.
- Directive descriptions are organized in a manner
similar to the Statements section described
above. It is important to gain an understanding of the directives
contained in this section before programming using SMP.
- Intrinsic and Library Procedures provides
an alphabetical reference to all XL Fortran:
Appendix A, Compatibility Across Standards discusses upwards and backwards compatibility across the
FORTRAN 77, Fortran 90 and Fortran 95 standards. Appendix B, ASCII and EBCDIC Character Sets displays the ASCII and EBCDIC character sets. The Glossary provides an alphabetical reference to terms
commonly used in this document.
See Highlighting Conventions for details on how IBM Extensions and Fortran 95
information are identified in this document.
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