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d465fa53cb
Discussion of these changes can be found on the Mercury developers
mailing list archives from June 2018.
COPYING.LIB:
Add a special linking exception to the LGPL.
*:
Update references to COPYING.LIB.
Clean up some minor errors that have accumulated in copyright
messages.
This directory contains two impure reference type modules, and a module that allows scoped non-backtrackable update, plus two example modules using these types. These serve as an example of impure coding. Generally this sort of coding is not necessary, and it can be quite tedious and error-prone, but occasionally it may permit greater efficiency than using pure Mercury code, or may permit you to write in Mercury what you would otherwise have to write in C. See the "Impurity declarations" chapter of the Mercury Language Reference Manual for more information on impurity. This directory contains reference.m a backtrackable reference types nb_reference.m a non-backtrackable reference types scoped_update.m scoping for non-backtrackable updates global.m a wrapper module used for building a library containing the above modules c_reference.h C types used to implement the reference types The samples directory contains max_of.m an example of non-backtrackable references test_max.m test case for max_of.m The tests directory contains ref_test.m tests of reference.m, nb_reference.m and scoped_update.m glob_test.m tests use of c_reference.h to implement global variables