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* module/ice-9/boot-9.scm (%cond-expand-features): Add srfi-16 and srfi-30. * doc/ref/srfi-modules.texi (SRFI-0): Add srfi-16 and srfi-30 to the list of core features. * module/srfi/srfi-16.scm: Remove call to 'cond-expand-provide'.
51 lines
1.8 KiB
Scheme
51 lines
1.8 KiB
Scheme
;;; srfi-16.scm --- case-lambda
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;; Copyright (C) 2001, 2002, 2006, 2009, 2014 Free Software Foundation, Inc.
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;;
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;; This library is free software; you can redistribute it and/or
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;; modify it under the terms of the GNU Lesser General Public
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;; License as published by the Free Software Foundation; either
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;; version 3 of the License, or (at your option) any later version.
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;;
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;; This library is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;; Lesser General Public License for more details.
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;;
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;; You should have received a copy of the GNU Lesser General Public
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;; License along with this library; if not, write to the Free Software
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;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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;;; Author: Martin Grabmueller
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;;; Commentary:
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;; Implementation of SRFI-16. `case-lambda' is a syntactic form
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;; which permits writing functions acting different according to the
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;; number of arguments passed.
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;;
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;; The syntax of the `case-lambda' form is defined in the following
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;; EBNF grammar.
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;;
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;; <case-lambda>
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;; --> (case-lambda <case-lambda-clause>)
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;; <case-lambda-clause>
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;; --> (<signature> <definition-or-command>*)
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;; <signature>
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;; --> (<identifier>*)
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;; | (<identifier>* . <identifier>)
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;; | <identifier>
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;;
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;; The value returned by a `case-lambda' form is a procedure which
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;; matches the number of actual arguments against the signatures in
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;; the various clauses, in order. The first matching clause is
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;; selected, the corresponding values from the actual parameter list
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;; are bound to the variable names in the clauses and the body of the
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;; clause is evaluated.
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;;; Code:
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(define-module (srfi srfi-16)
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#:re-export (case-lambda))
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;; Case-lambda is now provided by core psyntax.
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