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/* Barebones heap implementation supporting only insert and pop.
Copyright (C) 2010-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Full implementation: GDSL (http://gna.org/projects/gdsl/) by Nicolas
Darnis <ndarnis@free.fr>. Adapted by Gene Auyeung. */
#include <stddef.h>
struct heap;
void heap_free (struct heap *) _GL_ATTRIBUTE_NONNULL ();
struct heap *heap_alloc (int (*) (void const *, void const *), size_t)
_GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC (heap_free, 1)
_GL_ATTRIBUTE_RETURNS_NONNULL;
int heap_insert (struct heap *heap, void *item) _GL_ATTRIBUTE_NONNULL ();
void *heap_remove_top (struct heap *heap) _GL_ATTRIBUTE_NONNULL ();
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