Cleanscape's Fortran source code analysis tool is useful for finding bugs before
compiling FORTRAN 77 and Fortran 90. Although intended for large-scale software
development, this program is also useful as an aid for learning the Fortran language. The new
Graphical User Interface is exceptionally easy to use. Time-limited evaluation software is
There is one serious disadvantage to Cleanscape's Fortran Lint program if your display is less than 1024x768. The smaller display means that you will get a Fatal Error message: "Display dimensions are too small". The version on my computer was created on May 26, 2002, and it is hoped that Cleanscape will eliminate this inconvenience in the future.
Meanwhile, I have found that Lahey's online
Fortran Source Check
page provides a good way to obtain compile-time diagnostics for Fortran programs that you are creating.