这是我第一次将我的程序分成头文件和主文件。通过查看旧的 StackExchange 问题和答案,我必须相信我有所谓的“循环依赖”。
主.c:
#include <stdio.h>
#include "tree.h"
#include "1.h"
void main()
{
float res;
/* Example tree for function testing purposes */
Tree sampleTree;
printf("%f", sumNodes(&sampleTree));
//res = averageOfValues(sampleTree);
printf("The avarage value of the tree nodes is: %f", &res);
}
1.h:
#ifndef __1_H
#define __1_H
/* Prototypes */
Tree sampleTree1();
float averageOfValues(Tree tr);
#endif
1.c:
#include "1.h"
#include "tree.h"
#include <stdlib.h>
Tree sampleTree1()
{
Tree resTree;
TreeNode *l3_ll, *l3_lr, *l2_l, *l2_r, *l3_rr, *root;
l3_ll = createNewTreeNode(4, NULL, NULL);
l3_lr = createNewTreeNode(5, NULL, NULL);
l3_rr = createNewTreeNode(6, NULL, NULL);
l2_l = createNewTreeNode(2, l3_ll, l3_lr);
l2_r = createNewTreeNode(3, NULL, l3_rr);
root = createNewTreeNode(1, l2_l, l2_r);
resTree.root = root;
return resTree;
}
float averageOfValues(Tree tr)
{
float num; // counting the number of nodes
float sum; // summing the data of all nodes
num = (float)numNodes(&tr); // implicit casting (int -> float)
sum = sumNodes(&tr);
return sum/(float)num;
}
树.h
#ifndef __TREE_H
#define __TREE_H
/* Type definitions */
typedef struct TreeNode{
int data;
struct TreeNode* left;
struct TreeNode* right;
} TreeNode;
typedef struct tree{
TreeNode* root;
} Tree;
/* Prototypes */
TreeNode* createNewTreeNode(int data, TreeNode *left, TreeNode *right);
int numNodes(Tree *tr);
int numNodesHelper(TreeNode *root);
int sumNodes(Tree *tr);
int sumNodesHelper(TreeNode *root);
#endif
错误:
Error 1 error C2061: syntax error : identifier 'sampleTree1' c:\users\user\documents\visual studio 2010\projects\ex4\q1\1.h 8 1 Q1
Error 2 error C2059: syntax error : ';' c:\users\user\documents\visual studio 2010\projects\ex4\q1\1.h 8 1 Q1
Error 3 error C2059: syntax error : ')' c:\users\user\documents\visual studio 2010\projects\ex4\q1\1.h 8 1 Q1
Error 4 error C2146: syntax error : missing ')' before identifier 'tr' c:\users\user\documents\visual studio 2010\projects\ex4\q1\1.h 9 1 Q1
Error 5 error C2061: syntax error : identifier 'tr' c:\users\user\documents\visual studio 2010\projects\ex4\q1\1.h 9 1 Q1
Error 6 error C2059: syntax error : ';' c:\users\user\documents\visual studio 2010\projects\ex4\q1\1.h 9 1 Q1
Error 7 error C2059: syntax error : ')' c:\users\user\documents\visual studio 2010\projects\ex4\q1\1.h 9 1 Q1
Warning 8 warning C4244: '=' : conversion from 'int' to 'float', possible loss of data c:\users\user\documents\visual studio 2010\projects\ex4\q1\1.c 27 1 Q1
我究竟做错了什么?