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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.
2 lines
8 B
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2 lines
8 B
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f(1, 2)
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