OpenCOBOL 1.1 Programmer’s Guide, 1st Edition

This document describes the syntax, semantics and usage of the COBOL programming language as implemented by
the current version of OpenCOBOL.
OpenCOBOL is an open-source COBOL compiler and runtime environment. The OpenCOBOL compiler generates C
code which is automatically compiled and linked. While originally developed for UNIX operating systems, OpenCOBOL
can also be built for MacOS computers or Windows computers utilizing the UNIX-emulation features of such tools as
Cygwin and MinGW
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. It has also been built as a truly native Windows application utilizing Microsoft’s freely-downloadable Visual Studio Express package to provide the C compiler and linker/loader.
The principal developers of OpenCOBOL are Keisuke Nishida and Roger While. They may be contacted at the
OpenCOBOL website - www.opencobol.org.