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bcc5686606
Fuzzy bsearch is useful for finding an entry in a prefix sum array (value is >= ele[0], < ele[1]), and the reentrant version is good when data needs to be passed to the compare function. Adapted from the code used in pr_resolve.
49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
/*
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fbsearch.h
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Fuzzy bsearch
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Copyright (C) 2021 Bill Currie <bill@taniwha.org>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program 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.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifndef __QF_bsearch_h
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#define __QF_bsearch_h
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#include <stddef.h>
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#ifndef __compar_fn_t_defined
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#define __compar_fn_t_defined
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typedef int (*__compar_fn_t)(const void *, const void *);
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#endif
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#ifndef __compar_d_fn_t_defined
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#define __compar_d_fn_t_defined
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typedef int (*__compar_d_fn_t)(const void *, const void *, void *);
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#endif
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void *fbsearch (const void *key, const void *base, size_t nmemb, size_t size,
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__compar_fn_t cmp);
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void *fbsearch_r (const void *key, const void *base, size_t nmemb, size_t size,
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__compar_d_fn_t cmp, void *arg);
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#endif//__QF_bsearch_h
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