Estimated hours taken: 0.25
Branches: main
Address Fergus's review comments about the change
to add unification expressions to the language.
doc/reference_manual.texi:
Be more explicit about the evaluation order
of unification expressions.
Fix some formatting errors.
library/ops.m:
Fix a comment -- `@' is not an ISO Prolog operator,
it is a Mercury extension.
tests/hard_coded/unify_expression.{m,exp}:
Test the evaluation order of unification expressions.
Estimated hours taken: 1
Add unification expressions, written `X @ Y', to the language.
`X @ Y' unifies X and Y and returns the result. Unification
expressions can make switches more compact.
library/ops.m:
Add the operator `@'.
compiler/make_hlds.m:
Expand unification expressions.
NEWS:
doc/reference_manual.texi:
w3/news/newsdb.inc:
Document the new syntax.
tests/hard_coded/Mmakefile:
tests/hard_coded/unify_expression.{m,exp}:
Test case.
