Mercurial > dovecot > original-hg > dovecot-1.2
view src/lib/bsearch-insert-pos.c @ 9451:9fff30644260 HEAD
istream-concat: Fixed a lot of bugs.
author | Timo Sirainen <tss@iki.fi> |
---|---|
date | Mon, 26 Oct 2009 17:06:57 -0400 |
parents | b9faf4db2a9f |
children | 00cd9aacd03c |
line wrap: on
line source
/* Copyright (c) 2005-2009 Dovecot authors, see the included COPYING file */ #include "lib.h" #include "bsearch-insert-pos.h" bool bsearch_insert_pos(const void *key, const void *base, unsigned int nmemb, size_t size, int (*cmp)(const void *, const void *), unsigned int *idx_r) { const void *p; unsigned int idx, left_idx, right_idx; int ret; idx = 0; left_idx = 0; right_idx = nmemb; while (left_idx < right_idx) { idx = (left_idx + right_idx) / 2; p = CONST_PTR_OFFSET(base, idx * size); ret = cmp(key, p); if (ret > 0) left_idx = idx+1; else if (ret < 0) right_idx = idx; else { *idx_r = idx; return TRUE; } } if (left_idx > idx) idx++; *idx_r = idx; return FALSE; }