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Limitations and restrictions

There are some limitations and restrictions in implementation of both Modula-2 and Oberon-2 compilers.


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Length of identifiers

The length of an identifier is at most 127 characters.


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Length of literal strings

The length of a literal string is at most 256 characters. Longer strings may be constructed using the string concatenation operator (See Strings).


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Record extension hierarchy

The depth of a record extension hierarchy is at most 15 extensions.


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Unimplemented ISO libraries


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Unimplemented Oakwood libraries

The following Oberon-2 Oakwood library modules are not available in the current release:

Input Keyboard and pointer device access
Files File input/output, riders
XYPlane Elementary pixel plotting


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Coroutines

The current release provides a restricted implementation of the system module COROUTINES: the interrupt requests are not detected.


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Dynamic loader

The Oberon-2 dynamic loading facility is not provided in the current release.