mirror of
https://github.com/nasa/trick.git
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14a75508a3
Changed all header file once include variables to follow the same naming convention and not start with any underscores. Also deleted old incorrect copyright notices. Also removed $Id: tags from all files. Fixes #14. Fixes #22.
79 lines
3.2 KiB
C
79 lines
3.2 KiB
C
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#ifndef BST_H
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#define BST_H
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#include <stdio.h>
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#define RIGHTLEAF 1 /* get right inner leaf in delete */
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#define LEFTLEAF 0 /* get left inner leaf in delete */
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct bstnode
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{
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struct bstnode *left; /* points to left child */
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struct bstnode *right; /* points to right child */
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struct bstnode *parent; /* points to parent */
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void *info; /* points to the data contained in the node */
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}bstNode; /* bst node structure */
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typedef struct
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{
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bstNode *root; /* points to the root node */
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int nodes; /* number of nodes in the tree */
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short deltype; /* determines left or right leaf deletion strategy */
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int (*compare)(void *left,void *right); /* compare function implemented by user of bst */
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/* return 0 if left and right are identical */
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/* else return -1 if left <= right and 1 if left > right */
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void (*print_node)(FILE *output,void *info); /* print function to be implemented by user */
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void (*traverse_node)(void *info); /* traverse function to be implemented by user */
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void (*delete_node)(void *info); /* delete function to be implemented by user */
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void (*malloc_fail_handler)(void); /* malloc fail function to be implemented by user */
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short init;
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}BST;
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/* function prototypes */
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bstNode *bstFind(void *info,BST *bst); /* find a node that contains info */
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void *bstGetInfo(bstNode *node); /* get the info pointer of a node */
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bstNode *bstGetLeft(bstNode *node); /* get the left node of a node */
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bstNode *bstGetRight(bstNode *node); /* get the right node of a node */
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bstNode *bstGetParent(bstNode *node); /* get the parent node of a node */
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void *bstDelete(bstNode *node,BST *bst); /* delete a node from the tree */
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void bstDeleteNodes (BST * bst, bstNode * node);
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int bstGetCount(BST *bst); /* get the number of nodes in the tree */
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bstNode* bstInsert(void *info,BST *bst); /* insert a new node into the tree */
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void bstPrintAscending(FILE *output, BST *bst); /* print the nodes in ascending order */
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void bstPrintDescending(FILE *output, BST *bst); /* print the nodes in descending order */
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void bstInit(BST *bst); /* intialize the BST structure */
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void bstTraverseTree(BST *);
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void bstDeleteTree(BST *);
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/* override the default functions with a user supplied function */
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void bstSetPrintFunc(BST *bst,void (*printfunc)(FILE *output,void *info));
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void bstSetTraverseFunc(BST *bst,void (*traversefunc)(void *info));
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void bstSetDeleteFunc(BST *bst,void (*deletefunc)(void *info));
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void bstSetCompareFunc(BST *bst,int (*compfunc)(void *left,void *right));
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/* override the default malloc failure handler with a user supplied handler */
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void bstSetMallocFailHandler(BST *bst,void (*malloc_fail_handler)(void));
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void DefPrintProc (FILE * output, void *info) ;
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void DefTraverseProc (void *info) ;
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void DefDeleteProc (void *info) ;
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void DefHandlerProc (void) ;
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#ifdef __cplusplus
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}
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#endif
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#endif
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