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26 results

GamePad.cpp

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  • Forked from gmsh / gmsh
    Source project has a limited visibility.
    TreeUtils.cpp 2.27 KiB
    // Gmsh - Copyright (C) 1997-2019 C. Geuzaine, J.-F. Remacle
    //
    // See the LICENSE.txt file for license information. Please report all
    // issues on https://gitlab.onelab.info/gmsh/gmsh/issues.
    //
    // Contributor(s):
    //   Marc Ume
    //
    
    #include <stdlib.h>
    #include <string.h>
    #include "MallocUtils.h"
    #include "TreeUtils.h"
    
    Tree_T *Tree_Create(int size, int (*fcmp)(const void *a, const void *b))
    {
      Tree_T *tree = (Tree_T *)Malloc(sizeof(Tree_T));
      tree->size = size;
      tree->root = avl_init_table(fcmp);
      return tree;
    }
    
    void Tree_Delete(Tree_T *tree)
    {
      if(!tree) return;
      avl_free_table(tree->root, Free, 0);
      Free(tree);
    }
    
    void Tree_Delete(Tree_T *tree, void (*freefn)(void *))
    {
      if(!tree) return;
      avl_free_table(tree->root, freefn, 0);
      Free(tree);
    }
    
    void *Tree_Add(Tree_T *tree, void *data)
    {
      if(!tree) return 0;
      void *ptr = Malloc(tree->size);
      memcpy(ptr, data, tree->size);
      avl_insert(tree->root, ptr, ptr);
      return ptr;
    }
    
    int Tree_Nbr(Tree_T *tree)
    {
      if(!tree) return 0;
      return avl_count(tree->root);
    }
    
    int Tree_Insert(Tree_T *tree, void *data)
    {
      if(!Tree_Search(tree, data)) {
        Tree_Add(tree, data);
        return 1;
      }
      return 0;
    }
    
    int Tree_Search(Tree_T *tree, void *data)
    {
      if(!tree) return 0;
      void *ptr;
      return avl_lookup(tree->root, data, &ptr);
    }
    
    int Tree_Query(Tree_T *tree, void *data)
    {
      if(!tree) return 0;
      void *ptr;
      if(!avl_lookup(tree->root, data, &ptr)) return 0;
      memcpy(data, ptr, tree->size);
      return 1;
    }
    
    void *Tree_PQuery(Tree_T *tree, void *data)
    {
      if(!tree) return 0;
      void *ptr;
      if(!avl_lookup(tree->root, data, &ptr)) return 0;
      return ptr;
    }
    
    int Tree_Suppress(Tree_T *tree, void *data)
    {
      if(!tree) return 0;
      void *ptr = data;
      if(!avl_delete(tree->root, &ptr, &ptr)) return 0;
      Free(ptr);
      return 1;
    }
    
    int Tree_Size(Tree_T *tree)
    {
      if(!tree) return 0;
      return tree->size;
    }
    
    void Tree_Action(Tree_T *tree, void (*action)(void *data, void *dummy))
    {
      if(!tree) return;
      avl_foreach(tree->root, action, AVL_FORWARD);
    }
    
    static List_T *pListTransfer;
    
    void TransferList(void *a, void *b) { List_Add(pListTransfer, a); }
    
    List_T *Tree2List(Tree_T *pTree)
    {
      int Nb;
      Nb = Tree_Nbr(pTree);
      if(Nb == 0) Nb = 1;
      pListTransfer = List_Create(Nb, Nb, Tree_Size(pTree));
      Tree_Action(pTree, TransferList);
      return pListTransfer;
    }