Thread: Arithmetic on pointer...?

When I complie my program I get this error:

lab05.c:183: arithmetic on pointer to an incomplete type

Line 183 is this:

word[i]=list[x][i];

I also get it for a few other line similar. I have passed those arrays to the function that contains line 183. They are, however, no different than the orginals other than the i's and x.

I can post the full code if you perfer... just please help : (

post the code, its hard to tell from the little fragment

Alright, here it is.

Code:

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

void menu(int *option);
void instructions();
void players(int *player);
void playGame(char word[], int player);
void getList(char word[], char list[][], int *count);
void getWord();
void enterWord(char word[]);
void guessWord();
void drawMan(int numWrong);
void listWrong(char wrongLetters[], int i, char guess);


/*
*Function: Main
*
*Inputs  - 
*Outputs - 
*
*Description:
*
*/
main(){

        char word[32];
        int option=0, player;

        /* Basis number generation on time*/
        srand( (unsigned)time( NULL ) );

        system("clear");

        printf("***************************************************");
        printf("\n*           Hello!  Welcome to Hangman!           *\n");
        printf("***************************************************");
        menu(&option);
        
        printf("%d", option);

        while(option!=4){
          if(option==1)
            playGame(word, player);
          if(option==2)
            players(&player);
          if(option==3)
            instructions();
          menu(&option);
        }
        if(option==4)
          exit(0);
}

/*
*Function: Menu
*
*Inputs  -
*Outputs - 
*
*Description:
*
*/

void menu(int *option){
        int choice;
        
        printf("\n\nPlease chose an option:\n\n");
        printf("1.Play Game\n");
        printf("2.Change Players\n");
        printf("3.Instructions\n");
        printf("4.Quit Hangman\n\n");
        printf("Chose option: ");

        fflush(stdin);
        scanf("%d", &choice);

        switch(choice){
          case 1:
          case 2:
          case 3:
          case 4:
            *option=choice;
            break;
        default:
            while((choice!=1)&&(choice!=2)&&(choice!=3)&&(choice!=4)){
              printf("That is not a valid entry, try again.\n\n");
              printf("Chose option: ");
              fflush(stdin);
              scanf("%d", &choice);
            }
            *option=choice;
            break;
        }
}

void playGame(char word[], int player){

        int count, fileRead=0;
        char list[100][32];
        
        if(player==1){
          if(fileRead){
            fileRead++;
            getList(word, list, &count);
          }
          getWord(word, list, count);
        }
        else
          enterWord(word);

        guessWord(word);
}

void players(int *player){

        int players;

        system("clear");
        printf("How many players (1 or 2): ");
        fflush(stdin);
        scanf("%d", players);

        *player=players;
}  

void instructions(){

}

void getList(char word[], char list[][], int *count){

        FILE *fp;
        int row;        

        if((fp=fopen("words.dat", "r"))==NULL){
          printf("Can't open file.\n");
          exit(0);
        }
        
        for(row=0; (fscanf(fp, "%s", list[row])!=EOF); row++);
        fclose(fp);

        *count=row;

}

void getWord(char word[], char list[][], int count){

        int x, i, j, usedWords[count], noMore;
        
        noMore=0;

        do{     
          x=(rand()%(count));
          noMore++;
        }while((!usedWords[x]==1)&&(noMore<count));

        if(noMore==count){
          system("clear");
          printf("\n\n\nYou have beaten HangMan, Congratulations!\n");
          printf("In other words, there are no more words...");
          exit(0);
        }
        
        j=stnlen(list[x]);
        i=0;

        while(i < j){
          word[i]=list[x][i];
          i++;
        }

        word[j]='\0';
        
        usedWords[x]=1;
}
 
void enterWord(word[]){


void guessWord(char word[]){

        int wordLength, i, j, k, numWrong, numRight, badGuess;
        char blanks[32], wrongLetters[18], guess;

        wordLength=strlen(word);
        arrayLength= wordLength + 1;

        for(i=0; i<wordLength; i++){
          blanks[i]='-';
        }

        blanks[i]='\0';
        numRight=0;
        numWrong=0;

        while((numRight<wordlength)&&(numWrong<6)){
          system("clear");

          drawMan(numWrong);
          printf("\n\n");
          put(blanks);
          printf("\n                                      ");
          put(wrongLetters);
          printf("\n\nGuess a letter: ");

          fflush(stdin);

          scanf("%c", &guess);

          fflush(stdin);

          while((guess<'a')||(guess>'z')){
            printf("Please use lower case letters only.\n\n");
            fflush(stdin);
            printf("Guess a letter: ");
            scanf("%c", &guess);
          }
          
          badGuess=1;
  
          for(j=0; j<wordLength; j++){
            if(word[j]==guess){
              blanks[j]=word[j];
              badGuess=0;
            }
          }

          if(badGuess){
            numWrong++;
            listWrong(wrongLetters, numWrong, guess)
          }
        
        if(numWrong==6)
          printf("You lose! Sorry!\n");
        else
          printf("You win!  Good job!\n");

        printf("Press enter to continue to menu.");
        scanf("%d");   
}



void drawMan(int numWrong){
        
        char gallow[7][10]={"/=====o  "
                            "||   |   "
                            "||       "
                            "||       "
                            "||       "
                            "||______ "
                            "|_______\\"};

        if(numWrong==1)
          gallow[2][5]='O';
        if(numWrong==2)
          gallow[3][5]='|';
        if(numWrong==3)
          gallow[3][4]='/';
        if(numWrong==4){
          gallow[3][6]='\\';
        }
        if(numWrong==5){
          gallow[4][6]='\\';
        }
        if(numWrong==6)
          gallow[4][4]='/';

        puts(gallow[0]);
        puts(gallow[1]);
        puts(gallow[2]);
        puts(gallow[3]);
        puts(gallow[4]);
        puts(gallow[5]);
        puts(gallow[6]);
        puts(gallow[7]);
        
        return(0);      
}
void listWrong(char wrongLetters[], int i, char guess){

        if(i==1){
          wrongLetters[0]=guess;
          wrongLetters[1]=',';
          wrongLetters[2]=' ';
        }
        if(i==2){
          wrongLetters[3]=guess;
          wrongLetters[4]=',';
          wrongLetters[5]=' ';
        }
        if(i==3){
          wrongLetters[6]=guess;
          wrongLetters[7]=',';
          wrongLetters[8]=' ';
        }
        if(i==4){
          wrongLetters[9]=guess;
          wrongLetters[10]=',';
          wrongLetters[11]=' ';
        }
        if(i==5){
          wrongLetters[12]=guess;
          wrongLetters[13]=',';
          wrongLetters[14]=' ';
        }
        if(i==6){
          wrongLetters[15]=guess;
        }
        wrongLetters[16]='\0';
}

Code:

void getWord(char word[], char list[][], int count){

Consult your text on how to pass a 'multi-dimensional array' to a function. The way you have it will not work. Basically you can do one of two things:

Code:

void getWord(char word[], char list[][32], int count){

 /* or */

void getWord(char word[], char *list[32], int count){

Have a look at your programming text to find out why you can't pass a matrix the way you originally posted it.

Originally Posted by kermit

Code:

void getWord(char word[], char list[][], int count){

Consult your text on how to pass a 'multi-dimensional array' to a function. The way you have it will not work. Basically you can do one of two things:

Code:

void getWord(char word[], char list[][32], int count){

 /* or */

void getWord(char word[], char *list[32], int count){

Have a look at your programming text to find out why you can't pass a matrix the way you originally posted it.

Alright cool, I'll see if that works : ) Thank you very much.

Has anyone else had a problem where the scanf would just keep prompting? This is odd... really odd.