Named parameters: Difference between revisions
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(→{{header|Swift}}: Update to modern Swift syntax, add more examples of what is possible) |
(added a Prolog implementation of named parameters) |
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SyntaxError: non-keyword arg after keyword arg |
SyntaxError: non-keyword arg after keyword arg |
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>>></lang> |
>>></lang> |
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=={{header|Prolog}}== |
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{{works with|SWI Prolog}} |
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<lang prolog>:- initialization(main). |
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main :- |
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sum(b=2,output=Output,a=1), |
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writeln(Output). |
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sum(A1,B1,C1) :- |
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named_args([A1,B1,C1],[a=A,b=B,output=Output]), |
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Output is A + B. |
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named_args([],_). |
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named_args([A|B],C) :- |
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member(A,C), |
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named_args(B,C). |
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</lang> |
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=={{header|R}}== |
=={{header|R}}== |
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