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Most users of
g77 can be divided into two camps:
g77to compile existing, "legacy" code.
Users writing new code generally understand most of the necessary
aspects of Fortran to write "mainstream" code, but often need
help deciding how to handle problems, such as the construction
of libraries containing
Users dealing with "legacy" code sometimes don't have much
experience with Fortran, but believe that the code they're compiling
already works when compiled by other compilers (and might
not understand why, as is sometimes the case, it doesn't work
when compiled by
The following information is designed to help users do a better job coping with existing, "legacy" Fortran code, and with writing new code as well.
14.1 Advantages Over f2c If
f2cis so great, why
14.2 Block Data and Libraries How
g77solves a common problem.
14.3 Loops Fortran
DOloops surprise many people.
14.4 Working Programs Getting programs to work should be done first. 14.5 Overly Convenient Command-line Options Temptations to avoid, habits to not form. 14.6 Faster Programs Everybody wants these, but at what cost?
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