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// SPDX-License-Identifier: GPL-2.0
#ifndef STRUCTURED_LIST_H
#define STRUCTURED_LIST_H
/* Clear everything but the first element;
* this works for taglist, picturelist, even dive computers */
#define STRUCTURED_LIST_FREE(_type, _start, _free) \
{ \
_type *_ptr = _start; \
while (_ptr) { \
_type *_next = _ptr->next; \
_free(_ptr); \
_ptr = _next; \
} \
}
#define STRUCTURED_LIST_COPY(_type, _first, _dest, _cpy) \
{ \
_type *_sptr = _first; \
_type **_dptr = &_dest; \
while (_sptr) { \
*_dptr = malloc(sizeof(_type)); \
_cpy(_sptr, *_dptr); \
_sptr = _sptr->next; \
_dptr = &(*_dptr)->next; \
} \
*_dptr = 0; \
}
#endif
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