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/* MIT License
*
* Copyright (c) 2020 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.
*/
#ifndef CARRAY__H__
#define CARRAY__H__
#include <stdlib.h>
#include "ccommon.h"
/*
Multi-dimensional generic array allocated as one block of heap-memory.
// demo:
#include <stdio.h.h>
#include <stc/carray.h>
using_carray(f, float);
int main()
{
carray3f a3 = carray3f_init(30, 20, 10, 0.f);
*carray3f_at(a3, 5, 4, 3) = 10.2f; // a3[5][4][3]
carray2f a2 = carray3f_at1(a3, 5); // sub-array reference: a2 = a3[5]
printf("%g\n", *carray2f_at(a2, 4, 3)); // lookup a2[4][3] (=10.2f)
printf("%g\n", *carray3f_at(a3, 5, 4, 3)); // same data location, via a3 array.
carray2f_del(&a2); // does nothing, since it is a sub-array.
carray3f_del(&a3); // destroy a3, invalidates a2.
}
*/
#define carray1_xdim(a) ((a)._xdim & _carray_SUB)
#define carray1_size(a) carray1_xdim(a)
#define carray2_xdim(a) carray1_xdim(a)
#define carray2_ydim(a) (a)._ydim
#define carray2_size(a) _carray2_size(&(a)._ydim)
#define carray3_xdim(a) carray1_xdim(a)
#define carray3_ydim(a) carray2_ydim(a)
#define carray3_zdim(a) (a)._zdim
#define carray3_size(a) _carray3_size(&(a)._zdim)
#define _carray_SUB (SIZE_MAX >> 1)
#define _carray_OWN (_carray_SUB + 1)
STC_INLINE size_t
_carray2_size(const size_t* ydim) {return ydim[0] * ydim[-1];}
STC_INLINE size_t
_carray3_size(const size_t* zdim) {return zdim[0] * zdim[-1] * zdim[-2];}
#define using_carray_common(D, X, Value, valueDestroy) \
typedef struct { Value *val; } carray##D##X##_iter_t; \
\
STC_INLINE carray##D##X##_iter_t \
carray##D##X##_begin(carray##D##X* a) { \
carray##D##X##_iter_t it = {a->data}; return it; \
} \
STC_INLINE carray##D##X##_iter_t \
carray##D##X##_end(carray##D##X* a) { \
carray##D##X##_iter_t it = {a->data + carray##D##_size(*a)}; return it; \
} \
STC_INLINE void \
carray##D##X##_next(carray##D##X##_iter_t* it) {++it->val;} \
\
STC_INLINE void \
carray##D##X##_del(carray##D##X* self) { \
if (self->_xdim & _carray_OWN) { \
c_foreach_3 (i, carray##D##X, *self) \
valueDestroy(i.val); \
c_free(self->data); \
} \
}
#define using_carray(...) c_MACRO_OVERLOAD(using_carray, __VA_ARGS__)
#define using_carray_2(X, Value) \
using_carray_3(X, Value, c_default_del)
#define using_carray_3(X, Value, valueDestroy) \
\
typedef Value carray1##X##_value_t; \
typedef carray1##X##_value_t carray2##X##_value_t, carray3##X##_value_t; \
\
typedef struct { \
Value *data; \
size_t _xdim; \
} carray1##X; \
\
typedef struct { \
Value *data; \
size_t _xdim, _ydim; \
} carray2##X, carray2##X##_t; \
\
typedef struct { \
Value *data; \
size_t _xdim, _ydim, _zdim; \
} carray3##X, carray3##X##_t; \
\
using_carray_common(1, X, Value, valueDestroy) \
using_carray_common(2, X, Value, valueDestroy) \
using_carray_common(3, X, Value, valueDestroy) \
\
STC_INLINE carray1##X \
carray1##X##_init(size_t xdim, Value val) { \
Value* m = c_new_2(Value, xdim); \
for (size_t i=0; i<xdim; ++i) m[i] = val; \
carray1##X a = {m, xdim | _carray_OWN}; \
return a; \
} \
STC_INLINE carray2##X \
carray2##X##_init(size_t ydim, size_t xdim, Value val) { \
const size_t n = ydim * xdim; \
Value* m = c_new_2(Value, n); \
for (size_t i=0; i<n; ++i) m[i] = val; \
carray2##X a = {m, xdim | _carray_OWN, ydim}; \
return a; \
} \
STC_INLINE carray3##X \
carray3##X##_init(size_t zdim, size_t ydim, size_t xdim, Value val) { \
const size_t n = zdim * ydim * xdim; \
Value* m = c_new_2(Value, n); \
for (size_t i=0; i<n; ++i) m[i] = val; \
carray3##X a = {m, xdim | _carray_OWN, ydim, zdim}; \
return a; \
} \
\
STC_INLINE carray1##X \
carray1##X##_from(Value* array, size_t xdim) { \
carray1##X a = {array, xdim}; \
return a; \
} \
STC_INLINE carray2##X \
carray2##X##_from(Value* array, size_t ydim, size_t xdim) { \
carray2##X a = {array, xdim, ydim}; \
return a; \
} \
STC_INLINE carray3##X \
carray3##X##_from(Value* array, size_t zdim, size_t ydim, size_t xdim) { \
carray3##X a = {array, xdim, ydim, zdim}; \
return a; \
} \
\
STC_INLINE Value* \
carray1##X##_at(carray1##X *a, size_t x) { return a->data + x; } \
\
STC_INLINE carray1##X \
carray2##X##_at1(carray2##X *a, size_t y) { \
carray1##X sub = {a->data + y*carray2_xdim(*a), carray2_xdim(*a)}; \
return sub; \
} \
STC_INLINE Value* \
carray2##X##_at(carray2##X *a, size_t y, size_t x) { \
return a->data + y*carray2_xdim(*a) + x; \
} \
\
STC_INLINE carray2##X \
carray3##X##_at1(carray3##X *a, size_t z) { \
carray2##X sub = {a->data + z*a->_ydim*carray2_xdim(*a), carray3_xdim(*a), a->_ydim}; \
return sub; \
} \
STC_INLINE carray1##X \
carray3##X##_at2(carray3##X *a, size_t z, size_t y) { \
carray1##X sub = {a->data + (z*a->_ydim + y)*carray3_xdim(*a), carray3_xdim(*a)}; \
return sub; \
} \
STC_INLINE Value* \
carray3##X##_at(carray3##X *a, size_t z, size_t y, size_t x) { \
return a->data + (z*a->_ydim + y)*carray3_xdim(*a) + x; \
} \
typedef carray1##X carray1##X##_t
#endif
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