CoCo is a preprocessor for Fortran originally specified by Part 3 of the Fortran standard. CoCo is aware of Fortran line and statement rules, and supports the usual features of a preprocessor: file inclusion and conditional compilation. CoCo is more structured than other preprocessors, requiring declaration of all symbols used. CoCo supports Fortran assertions, generic programming, software testing, and has features to support large projects.
Daniel Nagle is the chair of PL22.3 (formerly J3) Fortran Standard Committee. He got his PhD in Computational Science from GMU and is working in UCAR’s Consulting Service Group. He has been using and teaching Fortran since the '60s and has been parallel programming in Fortran and other languages since the '80s
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