error LNK2005:_**** already defined in main.obj
So I have this sample main.c file:
Code:
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
void shuffle (int wDeck[][13]);
void deal (const int wDeck[][13], const char *wFace[], const char *wSuit[]);
int main (void)
{
/* initialize suit array */
const char *suit[4] = {"Hearts", "Diamonds", "Clubs", "Spades"};
/* initialize face array */
const char *face[13] = {"Ace", "Deuce", "Three", "Four", "Five", "Size", "Seven", "Eight",
"Nine", "Ten", "Jack", "Queen", "King"};
/* initalize deck array */
int deck[4][13] = {0};
srand ((unsigned) time (NULL)); /* see random-number generator */
shuffle (deck);
deal (deck, face, suit);
return 0;
}
/* shuffle cards in deck */
void shuffle (int wDeck[][13])
{
int row = 0; /* row number */
int column = 0; /*column number */
int card = 0; /* card counter */
/* for each of the 52 cards, choose slot of deck randomly */
for (card = 1; card <= 52; card++)
{
/* choose new random location until unoccupied slot found */
do
{
row = rand () % 4;
column = rand () % 13;
} while (wDeck[row][column] != 0);
/* place card number in chosen slot of deck */
wDeck[row][column] = card;
}
}
/* deal cards in deck */
void deal (const int wDeck[][13], const char *wFace[], const char *wSuit[])
{
int row = 0; /* row number */
int column = 0; /*column number */
int card = 0; /* card counter */
/* deal each of the 52 cards */
for (card = 1; card <= 52; card++)
{
/* loop through rows of wDeck */
for (row = 0; row <= 3; row++)
{
/* loop through columns of wDeck for current row */
for (column = 0; column <= 12; column++)
{
/* if slot contains current card, display card */
if (wDeck[row][column] == card)
{
printf ("%5s of %-8s%c", wFace[column], wSuit[row], card % 2 == 0 ? '\n' : '\t');
}
}
}
}
}
I'm trying to clean it up by splitting it into a header file and two source files, but when I do, I get three errors stating
"error LNK2005:_deal already defined in main.obj"
"error LNK2005:_shuffle already defined in main.obj"
"fatal error LNK1169: one or more multiply defined symbols found"
I can't figure out where the mistake is. The modified files look like this:
poker.h
Code:
#ifndef POKER_H
#define POKER_H
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
void shuffle (int wDeck[][13]);
void deal (const int wDeck[][13], const char *wFace[], const char *wSuit[]);
#endif
poker.c
Code:
#include "poker.h"
/* shuffle cards in deck */
void shuffle (int wDeck[][13])
{
int row = 0; /* row number */
int column = 0; /*column number */
int card = 0; /* card counter */
/* for each of the 52 cards, choose slot of deck randomly */
for (card = 1; card <= 52; card++)
{
/* choose new random location until unoccupied slot found */
do
{
row = rand () % 4;
column = rand () % 13;
} while (wDeck[row][column] != 0);
/* place card number in chosen slot of deck */
wDeck[row][column] = card;
}
}
/* deal cards in deck */
void deal (const int wDeck[][13], const char *wFace[], const char *wSuit[])
{
int row = 0; /* row number */
int column = 0; /*column number */
int card = 0; /* card counter */
/* deal each of the 52 cards */
for (card = 1; card <= 52; card++)
{
/* loop through rows of wDeck */
for (row = 0; row <= 3; row++)
{
/* loop through columns of wDeck for current row */
for (column = 0; column <= 12; column++)
{
/* if slot contains current card, display card */
if (wDeck[row][column] == card)
{
printf ("%5s of %-8s%c", wFace[column], wSuit[row], card % 2 == 0 ? '\n' : '\t');
}
}
}
}
}
main.c:
Code:
#include "poker.h"
int main (void)
{
/* initialize suit array */
const char suit[4] = {"Hearts", "Diamonds", "Clubs", "Spades"};
/* initialize face array */
const char face[13] = {"Ace", "Deuce", "Three", "Four", "Five", "Size", "Seven", "Eight",
"Nine", "Ten", "Jack", "Queen", "King"};
/* initalize deck array */
int deck[4][13] = {0};
srand ((unsigned) time (NULL)); /* see random-number generator */
shuffle (deck);
deal (deck, face, suit);
return 0;
}
Can anybody show me where my mistake is?
