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-rw-r--r--libbanshee/engine/array.c96
1 files changed, 0 insertions, 96 deletions
diff --git a/libbanshee/engine/array.c b/libbanshee/engine/array.c
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--- a/libbanshee/engine/array.c
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-/*
- * Copyright (c) 2000-2001
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- */
-
-#include <regions.h>
-#include <assert.h>
-#include <limits.h>
-#include "array.h"
-
-struct array {
- region sameregion r;
- void *sameregion data;
- size_t elemsize;
- type_t elemtype;
- size_t nelems, nalloc;
-};
-
-struct array *new_array(region r, size_t initialsize,
- size_t typesize, type_t typeinfo)
-{
- struct array *a = ralloc(r, struct array);
-
- a->r = r;
- a->data = typed_rarrayalloc(r, initialsize, typesize, typeinfo);
- a->elemsize = typesize;
- a->elemtype = typeinfo;
- a->nelems = 0;
- a->nalloc = initialsize;
-
- return a;
-}
-
-void *array_extend(struct array *a, int by)
-{
- size_t oldelems = a->nelems;
-
- if (by < 0)
- assert(((unsigned int)-by) <= a->nelems && by != INT_MIN);
- else if (a->nelems + by > a->nalloc)
- {
- size_t newsize = a->nalloc * 2 + by;
- void *newdata = typed_rarrayalloc(a->r, newsize, a->elemsize, a->elemtype);
-
- /* XXX: could work harder to support really large array sizes
- (this code will fail for a->nalloc >= (max(size_t)-by)/2) */
- assert(newsize > a->nalloc); /* die when we get really big */
- typed_rarraycopy(newdata, a->data, a->nelems, a->elemsize, a->elemtype);
- a->data = newdata;
- a->nalloc = newsize;
- }
- a->nelems += by;
-
- return (char *)a->data + a->elemsize * oldelems;
-}
-
-void array_reset(struct array *a)
-{
- a->nelems = 0;
-}
-
-size_t array_length(struct array *a)
-{
- return a->nelems;
-}
-
-void *array_data(struct array *a)
-{
- return a->data;
-}
-