JohnnyF JohnnyF - 1 year ago 134
C Question

C compile : collect2: error: ld returned 1 exit status

I tried to search for that bug online but all the posts are for C++.

this if the msg

test1.o: In function `ReadDictionary':
/home/johnny/Desktop/haggai/test1.c:13: undefined reference to `CreateDictionary'
collect2: error: ld returned 1 exit status
make: *** [test1] Error 1

super simple code and can't understand what's the problem

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "dict.h"
#include "hash.h"

pHash ReadDictionary() {
/* This function reads a dictionary line by line from the standard input. */
pHash dictionary;
char entryLine[100] = "";
char *word, *translation;

dictionary = CreateDictionary();
while (scanf("%s", entryLine) == 1) { // Not EOF
word = strtok(entryLine, "=");
translation = strtok(NULL, "=");
AddTranslation(dictionary, word, translation);
return dictionary;

int main() {
pHash dicti;

now this is the header dict.h

#ifndef _DICT_H_
#define _DICT_H_

#include "hash.h"

pHash CreateDictionary();


and here is the dict.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "hash.h"
#include "dict.h"

pHash CreateDectionary()
pHash newDict;
newDict= HashCreate(650, HashWord, PrintEntry, CompareWords, GetEntryKey, DestroyEntry);
return newDict;

and if you wanna check hash.h

#ifndef _HASH_H_
#define _HASH_H_

//type defintions//
typedef enum {FAIL = 0, SUCCESS} Result;
typedef enum {SAME = 0, DIFFERENT} CompResult;

typedef struct _Hash Hash, *pHash;

typedef void* pElement;
typedef void* pKey;

//function types//
typedef int (*HashFunc) (pKey key, int size);
typedef Result (*PrintFunc) (pElement element);
typedef CompResult (*CompareFunc) (pKey key1, pKey key2);
typedef pKey (*GetKeyFunc) (pElement element);
typedef void (*DestroyFunc)(pElement element);

//interface functions//


Maybe it will be easier if I give you the files here?

Any way, I will be happy for tips on how to understand the problem

Answer Source

Your problem is the typo in the function CreateDectionary().You should change it to CreateDictionary(). collect2: error: ld returned 1 exit status is the same problem in both C and C++, usually it means that you have unresolved symbols. In your case is the typo that i mentioned before.

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