raze-gles/source/build/include/linklist.h
terminx 1e0dd0e534 Templatized linked list functions
git-svn-id: https://svn.eduke32.com/eduke32@7720 1a8010ca-5511-0410-912e-c29ae57300e0
2019-09-20 13:08:34 +02:00

57 lines
1.4 KiB
C++

#ifndef linklist_h_
#define linklist_h_
#include "compat.h"
namespace LL
{
template <typename T> FORCE_INLINE CONSTEXPR void Reset(T const node) { node->next = node->prev = node; }
template <typename T> FORCE_INLINE CONSTEXPR void Unlink(T const node)
{
node->prev->next = node->next;
node->next->prev = node->prev;
}
template <typename T> FORCE_INLINE CONSTEXPR void Insert(T const root, T const node)
{
node->next = root;
node->prev = root->prev;
root->prev->next = node;
root->prev = node;
}
template <typename T> FORCE_INLINE CONSTEXPR void Remove(T const node)
{
Unlink(node);
Reset(node);
}
template <typename T> FORCE_INLINE CONSTEXPR void Move(T const node, T const root)
{
Unlink(node);
Insert(root, node);
}
template <typename T, typename Tt> FORCE_INLINE CONSTEXPR void SortedInsert(T const root, T const node, Tt remove_pointer_t<T>::*m)
{
T best = root->next;
while ((best != root) && (node->*m > best->*m))
best = best->next;
Insert(best, node);
}
template <typename T> FORCE_INLINE CONSTEXPR bool Empty(T const root) { return ((root->next == root) && (root->prev == root)); }
#if 0
template <typename T> FORCE_INLINE void ReverseList(T const root)
{
T node = root->next;
for (T trav = root->prev, tprev; trav != node; trav = tprev)
{
tprev = trav->prev;
Move(trav, node);
}
}
#endif
} // namespace LL
#endif