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Update to newest recommended license notices from the FSF. Everything stays LGPLv3+ except guile-readline which is GPLv3+.
66 lines
1.5 KiB
C
66 lines
1.5 KiB
C
#ifndef SCM_WEAK_LIST_H
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#define SCM_WEAK_LIST_H
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/* Copyright 2016,2018
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Free Software Foundation, Inc.
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This file is part of Guile.
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Guile is free software: you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Guile is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with Guile. If not, see
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<https://www.gnu.org/licenses/>. */
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#include "libguile/pairs.h"
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#include "libguile/weak-vector.h"
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static inline SCM
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scm_i_weak_cons (SCM car, SCM cdr)
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{
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return scm_cons (scm_c_make_weak_vector (1, car), cdr);
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}
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static inline SCM
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scm_i_weak_car (SCM pair)
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{
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return scm_c_weak_vector_ref (scm_car (pair), 0);
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}
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static inline void
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scm_i_visit_weak_list (SCM *list_loc, void (*visit) (SCM))
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{
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SCM in = *list_loc, out = SCM_EOL;
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while (scm_is_pair (in))
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{
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SCM car = scm_i_weak_car (in);
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SCM cdr = scm_cdr (in);
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if (!scm_is_eq (car, SCM_BOOL_F))
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{
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scm_set_cdr_x (in, out);
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out = in;
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visit (car);
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}
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in = cdr;
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}
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*list_loc = out;
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}
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#endif /* SCM_WEAK_LIST_H */
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