User's Guide

Chapter 14. Porting Programs to XL Fortran

Partial Table-of-Contents

Outline of the Porting Process

Maintaining FORTRAN 77 Source and Object Code

Portability of Directives

NEW

Common Industry Extensions That XL Fortran Supports

Mixing Data Types in Statements

Date and Time Routines

Other libc Routines

Changing the Default Sizes of Data Types

Name Conflicts Between Your Procedures and XL Fortran Intrinsic Procedures

Reproducing Results from Other Systems

Finding Nonstandard Extensions

XL Fortran provides many features intended to make it easier to take programs that were originally written for other computer systems or compilers and recompile them with XL Fortran.