取消引用指向不完整類型的指針 - 列表

Question

我正在寫一個加載帶有文件名（僅）的鏈接列表的小型C程序。我將遍歷這個列表並解析每個文件名的內容。

當編譯我收到以下錯誤：

main.c: In function 'main': 
main.c:25: error: dereferencing pointer to incomplete type 
main.c:26: error: dereferencing pointer to incomplete type 
make: *** [main.o] Error 1 

的main.c：

#include <stdio.h> 
#include <stdlib.h> 

#include "list.h" 

int main(int argc, char *argv[]) 
{ 
    FNODEPTR node = NULL; 

    node = create_filename_list(); 

    add_filename_node(&node, "file1.txt"); 
    add_filename_node(&node, "file2.txt"); 

    //Start Logger 
    //Watchdog 
    //Warehouse 

    //print_filename_list((struct sFilename *)node); 

    while(node!=NULL) 
    { 
     printf("%s\n",node->chaFilename); //Line 25 
     node=node->next; //Line 26 
    } 

    destroy_filename_list(node); 

    exit(0); //0 SUCCESS - 1 FAIL 
} 

list.c：

#include <stdio.h> 
#include <stdlib.h> 
#include <string.h> 


#include "list.h" 

struct sFilename 
{ 
    char chaFilename[25]; 
    struct sFilename *next; 
}; 

FNODEPTR create_filename_list() 
{ 
    FNODEPTR node = NULL; 

    node = (FNODEPTR) malloc(sizeof (struct sFilename)); // Alocando um nó do tipo sFilename 

    return node; 
} 

void add_filename_node(FNODEPTR *fnFilename, char *chaFilename) 
{ 
    FNODEPTR head = *fnFilename; // head recebe o conteúdo de anAction. head aponta para o mesmo endereço que fnFilename 
    FNODEPTR newNode; 

    newNode = (FNODEPTR) malloc(sizeof (struct sFilename)); // Alocando um nó do tipo sFilename 

    strcpy(newNode->chaFilename, chaFilename); // Copiando o conteúdo de chaFilename para newNode->chaFilename. 

    newNode->next = head; // next do novo nó aponta para o início da lista (fnFilename) 

    head = newNode; //head é igual a newNode. head recebe o endereço de memória de newNode. head está na mesma posição que newNode 
    *fnFilename = head; //o conteúdo de anAction é igual a posição de head 
} 

void print_filename_list(struct sFilename *fnFilename) 
{ 
    if (fnFilename == NULL) 
      printf("Nao ha arquivos ftp a serem carregados\n"); 
    else { 
      printf("Os arquivos que serao carregados no T020 sao:\n"); 
      while (fnFilename != NULL) { 
       printf("\t- %s\n", fnFilename->chaFilename);//fnFilename->chaFilename); 
       fnFilename = (*fnFilename).next;//fnFilename->next; 
      } 
    } 
} 

void destroy_filename_list(FNODEPTR fnFilename) 
{ 
    if(fnFilename != NULL) 
    { 
     free(fnFilename); 
    } 
} 

list.h：

#ifndef LIST_H 
#define LIST_H 

typedef struct sFilename FNODE; 
typedef FNODE *FNODEPTR; 

FNODEPTR create_filename_list(); 
void add_filename_node(FNODEPTR *fnFilename, char *chaFilename); 
void remove_filename_node(FNODEPTR *fnFilename); 
void print_filename_list(struct sFilename *); 
void destroy_filename_list(FNODEPTR fnFilename); 

#endif 

該列表將作爲參考傳遞給其他將解析和加載內容到數據庫中的函數（模塊）。雖然我不能使用node-> chaFilename打開我需要加載到數據庫的文件。

我得到一個新的問題，當我調用解析函數傳遞*節點作爲參考編譯器抱怨與上述相同。例如：

parser.c：

//Built-in libs 
#include <stdio.h> 
#include <stdlib.h> 

//Homemade libs 
#include "parser.h" 
#include "list.h" 

int start_parse(FNODEPTR *node) 
{ 
    if(node!=NULL) 
    { 
     printf("Node is not null\n"); 
     while(node!=NULL) 
     { 
      printf("\tNode address %x\n", (unsigned int)node); 
      node=node->next; 
     }; 
    } 

    return 1; 
} 

parser.h：

#include "list.h" 

#ifndef PARSER_H 
#define PARSER_H 
int start_parse(FNODEPTR *node); 
#endif 

GCC輸出：

gcc -Wall -c -o parser.o parser.c 
parser.c: In function 'start_parse': 
parser.c:16: warning: cast from pointer to integer of different size 
parser.c:17: error: request for member 'next' in something not a structure or union 
make: *** [parser.o] Error 1 

任何想法？

在此先感謝，並對任何英語錯誤表示歉意。

Answer 1

struct sFilename 
{ 
    char chaFilename[25]; 
    struct sFilename *next; 
}; 

這應該list.h文件中定義的語句之前：

typedef struct sFilename FNODE; 
typedef FNODE *FNODEPTR; 

編輯::

int start_parse(FNODEPTR *node)而應是int start_parse(FNODEPTR node)