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(g77-300.info)Working Programs

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Working Programs
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   Getting Fortran programs to work in the first place can be quite a
challenge--even when the programs already work on other systems, or
when using other compilers.

   `g77' offers some facilities that might be useful for tracking down
bugs in such programs.

Not My Type

Variables Assumed To Be Zero

Variables Assumed To Be Saved

Unwanted Variables

Unused Arguments

Surprising Interpretations of Code

Aliasing Assumed To Work

Output Assumed To Flush

Large File Unit Numbers

Floating-point precision

Inconsistent Calling Sequences