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/* MIT License
*
* Copyright (c) 2022 Tyge Løvset, NORCE, www.norceresearch.no
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "ccommon.h"
#ifndef CPQUE_H_INCLUDED
#include <stdlib.h>
#include "forward.h"
#endif
#ifndef _i_prefix
#define _i_prefix cpque_
#endif
#include "template.h"
#if !c_option(c_is_fwd)
_cx_deftypes(_c_cpque_types, _cx_self, i_val);
#endif
typedef i_valraw _cx_raw;
STC_API void _cx_memb(_make_heap)(_cx_self* self);
STC_API void _cx_memb(_erase_at)(_cx_self* self, size_t idx);
STC_API void _cx_memb(_push)(_cx_self* self, _cx_value value);
STC_INLINE _cx_self _cx_memb(_init)(void)
{ return c_make(_cx_self){NULL}; }
STC_INLINE bool _cx_memb(_reserve)(_cx_self* self, const size_t cap) {
if (cap != self->size && cap <= self->capacity) return true;
_cx_value *d = (_cx_value *)c_realloc(self->data, cap*sizeof *d);
return d ? (self->data = d, self->capacity = cap, true) : false;
}
STC_INLINE void _cx_memb(_shrink_to_fit)(_cx_self* self)
{ _cx_memb(_reserve)(self, self->size); }
STC_INLINE _cx_self _cx_memb(_with_capacity)(const size_t cap) {
_cx_self out = {NULL}; _cx_memb(_reserve)(&out, cap);
return out;
}
STC_INLINE _cx_self _cx_memb(_with_size)(const size_t size, i_val null) {
_cx_self out = {NULL}; _cx_memb(_reserve)(&out, size);
while (out.size < size) out.data[out.size++] = null;
return out;
}
STC_INLINE void _cx_memb(_clear)(_cx_self* self) {
size_t i = self->size; self->size = 0;
while (i--) { i_valdrop(&self->data[i]); }
}
STC_INLINE void _cx_memb(_drop)(_cx_self* self)
{ _cx_memb(_clear)(self); c_free(self->data); }
STC_INLINE size_t _cx_memb(_size)(_cx_self q)
{ return q.size; }
STC_INLINE bool _cx_memb(_empty)(_cx_self q)
{ return !q.size; }
STC_INLINE size_t _cx_memb(_capacity)(_cx_self q)
{ return q.capacity; }
STC_INLINE _cx_value* _cx_memb(_top)(const _cx_self* self)
{ return &self->data[0]; }
STC_INLINE void _cx_memb(_pop)(_cx_self* self)
{ _cx_memb(_erase_at)(self, 0); }
#if !defined _i_no_clone
STC_API _cx_self _cx_memb(_clone)(_cx_self q);
STC_INLINE void _cx_memb(_copy)(_cx_self *self, _cx_self other) {
if (self->data == other.data) return;
_cx_memb(_drop)(self); *self = _cx_memb(_clone)(other);
}
STC_INLINE i_val _cx_memb(_value_clone)(_cx_value val)
{ return i_valfrom(i_valto(&val)); }
STC_INLINE void _cx_memb(_emplace)(_cx_self* self, _cx_raw raw)
{ _cx_memb(_push)(self, i_valfrom(raw)); }
#endif
/* -------------------------- IMPLEMENTATION ------------------------- */
#if defined(_i_implement)
STC_DEF void
_cx_memb(_sift_down_)(_cx_value* arr, const size_t idx, const size_t n) {
for (size_t r = idx, c = idx << 1; c <= n; c <<= 1) {
c += (c < n && i_cmp(&arr[c], &arr[c + 1]) < 0);
if (i_cmp(&arr[r], &arr[c]) >= 0) return;
_cx_value t = arr[r]; arr[r] = arr[c]; arr[r = c] = t;
}
}
STC_DEF void
_cx_memb(_make_heap)(_cx_self* self) {
size_t n = _cx_memb(_size)(*self);
_cx_value *arr = self->data - 1;
for (size_t k = n >> 1; k != 0; --k)
_cx_memb(_sift_down_)(arr, k, n);
}
#if !defined _i_no_clone
STC_DEF _cx_self _cx_memb(_clone)(_cx_self q) {
_cx_self out = _cx_memb(_with_capacity)(q.size);
for (; out.size < out.capacity; ++out.size, ++q.data)
out.data[out.size] = i_valfrom(i_valto(q.data));
return out;
}
#endif
STC_DEF void
_cx_memb(_erase_at)(_cx_self* self, const size_t idx) {
i_valdrop(&self->data[idx]);
const size_t n = --self->size;
self->data[idx] = self->data[n];
_cx_memb(_sift_down_)(self->data - 1, idx + 1, n);
}
STC_DEF void
_cx_memb(_push)(_cx_self* self, _cx_value value) {
if (self->size == self->capacity)
_cx_memb(_reserve)(self, self->size*3/2 + 4);
_cx_value *arr = self->data - 1; /* base 1 */
size_t c = ++self->size;
for (; c > 1 && i_cmp(&arr[c >> 1], &value) < 0; c >>= 1)
arr[c] = arr[c >> 1];
arr[c] = value;
}
#endif
#define CPQUE_H_INCLUDED
#include "template.h"
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