Thread: Trouble exiting do-while

Alright I figured out my first problem, so now I can't figure out why I can't exit the 'checkGuess' function with out it adding as many "white pegs" as it pleases. Any ideas?

Code:

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

#define GPEGS 4 /*Guess Pegs*/
#define GUESSES 8 /*Table Rows*/
#define COLORS 6 
#define TRUE 1
#define FALSE 0

typedef struct{
        char correct[GPEGS+1];
        char guessed[GPEGS+1];
}display;

void setDivider(char divider[], int pegs);
void menu(int *option);
void runGame(int pegs, char code[], char divider[], display row[]);
void getCode(char code[]);
void playGame(char code[], char divider[], display row[]);
void getGuess(char guess[], char guess2[], char divider[], display row[], int tries);
void printTable(char guess[], char divider[], display row[], int tries);
void checkGuess(char guess[], char guess2[], char divider[], char code[], display row[], int tries, int *win);

main(){

        int pegs=(5+GPEGS*2);
        int option=0, i, j;
        char code[GPEGS+1];
        char divider[pegs];
        display row[GUESSES+1];

        setDivider(divider, pegs);

        for(i=0; i<GUESSES; i++){
          for(j=0; j<=GPEGS; j++){
            (row[i].guessed[j])=' ';
            (row[i].correct[j])=' ';
          }
        }

        /*Bases randomly generated numbers on time.*/
        srand( (unsigned)time( NULL ) );

        do{
          menu(&option);
          if(option==1)
            runGame(pegs, code, divider, row);
          }while(option!=2);
        
        system("clear");
        printf("\n\nThank you for playing Master Mind!\n\n");
        exit(0);
}

void setDivider(char divider[], int pegs){

        int i, dashes=pegs-1;

        for(i=0; i<dashes; i++){
          divider[i]='-';
        }
        
        divider[dashes]=0;
}

void menu(int *option){

        int select;

        printf("\nMaster Mind Menu\n");
        printf("\n1)Play Game\n");
        printf("2)Exit Game\n");
        printf("\nPlease chose an option: ");
        fflush(stdin);
        scanf("%d", &select);
        
        switch(select){
          case 1:
          case 2:
            *option=select;
            break;
          defualt:
            while((select!=1)&&(select!=2)){
              system("clear");
              fflush(stdin);
              printf("That is an invalid entry!");
              printf("\nPlease select a number from the menu list.");
              printf("\n\n1)Play Game");
              printf("\n2)Exit Game\n");
              scanf("%d", &select);
            }
          *option=select;
        }
}

void runGame(int pegs, char code[], char divider[], display row[]){

        
        getCode(code);
        playGame(code, divider, row);
        
        
}

void getCode(char code[]){

        int numcode[GPEGS+1], i;

        for(i=0; i<GPEGS; i++){
                numcode[i]=(rand()%(COLORS))+1;
        }

puts(code);

        for(i=0; i<GPEGS; i++){

          if(numcode[i]==1)
            code[i]='r';
          if(numcode[i]==2)
            code[i]='o';
          if(numcode[i]==3)
            code[i]='y';
          if(numcode[i]==4)
            code[i]='g';
          if(numcode[i]==5)
            code[i]='b';
          if(numcode[i]==6)
            code[i]='p';
        }
        code[i]=0;
}

void playGame(char code[], char divider[], display row[]){

        int tries, win=FALSE, i, j;
        char guess[GPEGS+1], guess2[GPEGS+1], menu;

        tries=0;

        /*Set/Resets table to blanks*/
        for(i=0; i<GUESSES; i++){
          for(j=0; j<=GPEGS; j++){
            (row[i].guessed[j])=' ';
            (row[i].correct[j])=' ';
          }
        }

        while((tries<=GUESSES)&&(win==FALSE)){
          puts(code);
          getGuess(guess, guess2, divider, row, tries);
          checkGuess(guess, guess2, divider, code, row, tries, &win);
          tries++;
        }

        if(win==TRUE){
          system("clear");
          printTable(guess, divider, row, tries);
          printf("\n\nCongratulations!  You beat mastermind!");
          printf("\n\nPress enter to return to menu.");
          scanf("%c", menu);
        } 
}
void getGuess(char guess[], char guess2[], char divider[], display row[], int tries){
        
        int i, option, fill=0, quit=FALSE, reminder=0;
        char peg;

        for(i=0; i<GPEGS; i++)
          guess[i]=' ';
          guess2[i]=' ';
        guess[GPEGS]=0;
        guess2[GPEGS]=0;

        do{

          system("clear");
          printTable(guess, divider, row, tries);
          if(reminder)
            printf("***Please fill all slots.***");
          printf("\nChose a slot 1-%d OR",  GPEGS);
          printf("\n Enter %d to submit guess.\n", (GPEGS+1));
          printf("Enter slot/option: ");
          fflush(stdin);

          while(!scanf("%d", &option)||(option<1)||(option>GPEGS+1)){
            system("clear");
            printTable(guess, divider, row, tries);
            printf("\n\n***That is not a valid entry, try again.***");
            fflush(stdin);
            printf("\n\nEnter slot/option: ");
          }
          if(option<=GPEGS){
            printf("Enter Guess");
            printf("(r, b, g, y, o, p): ");
            fflush(stdin);
              while(!scanf("%c", &peg)||((peg!='r') 
                                      &&(peg!='b')
                                      &&(peg!='g')
                                      &&(peg!='y')
                                      &&(peg!='o')
                                      &&(peg!='p'))){

                system("clear");
                printTable(guess, divider, row, tries);
                printf("\n\n***That is not a valid entry, try again.***");
                fflush(stdin);
                printf("\n\nEnter a Color: ");
              }
            guess[option-1]=peg;
          }
          else{
            fill=FALSE;
            for(i=0;i<GPEGS;i++){
              if(guess[i]==' ')
                fill=TRUE;
              }
          }
          if(fill){
            quit=TRUE;
          }
          if(!quit){
            system("clear");
            printTable(guess, divider, row, tries);
            }
          
        reminder=1;
        }while(!quit);

        strcpy(guess2, guess);

}       

void printTable(char guess[], char divider[], display row[], int tries){
        
        int i, j;

        for(i=0; i<GPEGS; i++){
          (row[tries].guessed[i])=guess[i];
        }

        puts(divider);
        for(i=GUESSES-1; i>=0; i--){
          printf("|");
          for(j=0; j<GPEGS; j++){
            printf("%c", (row[i].guessed[j]));
          }
          printf("||");
          for(j=0; j<GPEGS; j++){
            printf("%c", (row[i].correct[j]));
          }
          printf("|\n");
          puts(divider);
        }

}

void checkGuess(char guess[], char guess2[], char divider[], char code[], display row[], int tries, int *win){

        int i, j, black, white, place, stop;

        black=0;
        white=0;
        place=0;
        stop=0;

        for(i=0; i<GPEGS; i++){
          if(guess2[i]==code[i]){
            black++;
            guess2[i]==' ';
          }
        }

        for(i=0; i<GPEGS; i++){
          for(j=0, stop=0; (j<GPEGS)&&(!stop); j++){
            if(guess2[i]==code[j]){
              white++;
              guess2[i]=' ';
              stop=1;
            }
          }
        }

        for(i=0; i<black; i++){
          (row[tries].correct[i])='b';
          place++;
        }

        for(i=0; i<white; i++){
          (row[tries].correct[place])='w';
          place++;
        }
        
        if(black==GPEGS)
          *win=TRUE;
}

I don't see you trying to exit the checkGuess() function anywhere in the function. If you want the function to exit somewhere, you can simply write

Code:

return;

If you want to exit a loop, you write

Code:

 break;

Oh,

Code:

fflush(stdin);

does not do what you think. X strike one, or, in better words, fflush is undefined on input buffers.