Thread: X.exe has stopped working, Windows is checking for a solution to the problem

My code compiles fine but whenever I run it I get a popup window that states DW.exe has stopped working, Windows is checking for a solution. What could be causing this? I cannot trouble shoot this one because it compiles....

DW.c

Code:

#include <stdio.h>
#include <stdlib.h> /* required for randomize() and random() */
#include <conio.h>  /* required for clrscr() */
#include <time.h> 




void Drug_buy(char city, 
                   double *my_money_ptr, 
                   int *my_coke_units_ptr, 
                   int *my_heroin_units_ptr, 
                   int *my_crack_units_ptr, 
                   int *my_pcp_units_ptr, 
                   int *my_acid_units_ptr, 
                   int *my_pot_units_ptr )
{
          srand(time(NULL));
          double coke_price = 30000 *rand();
          double heroin_price = 5000 * rand();
          double crack_price = 1000 *rand();
          double pcp_price= 800 *rand();
          double acid_price = 500 *rand();
          double pot_price =100 *rand();


      start_buy :  
          
      printf(" %s City Drug Prices\n", city);
      printf("--------------------------------\n");
      printf(" What do you want to buy?\n");
      printf("1: Coke at %d dollars per unit\n", coke_price);   
      printf("2: Heroin at %d dollars per unit\n", heroin_price);  
      printf("3: Crack at %d dollars per unit\n", crack_price);    
      printf("4: PCP at %d dollars per unit\n", pcp_price);  
      printf("5: Acid at %d dollars per unit\n", acid_price); 
      printf("6: pot at %d dollars per unit\n", pot_price); 
      
      
      int drug_choice_selection;
      char drug_choice[100];
      printf("How Much? \n");
                 
      fgets(drug_choice, sizeof(drug_choice), stdin);
      sscanf(drug_choice, "%d", &drug_choice_selection);  
      
 
   
           switch(drug_choice_selection)
           {
           case( '1' ):
                 {
           
                 int coke_choice;
                 char coke_Col_line[100];
                 printf("How Much? \n");
                 
                 fgets(coke_Col_line, sizeof(coke_Col_line), stdin);
                 sscanf(coke_Col_line, "%d", &coke_choice);
                 
                 if(coke_choice*coke_price > *my_money_ptr)
                 {
                 printf("You don't have enough Money!\n");
                 printf("Please try again.....\n");
                 goto start_buy;
                 }
                 else
                 {
                 *my_money_ptr = (*my_money_ptr - (coke_choice*coke_price));
                 *my_coke_units_ptr = coke_choice;
                 }
                 }
                 
   
   
           case( '2' ):
                 {
                 int heroin_choice;
                 char heroin_Col_line[100];
                 printf("How Much? \n");
                 
                 fgets(heroin_Col_line, sizeof(heroin_Col_line), stdin);
                 sscanf(heroin_Col_line, "%d", &heroin_choice);
                 
                 if(heroin_choice*heroin_price > *my_money_ptr)
                 {
                 printf("You don't have enough Money!\n");
                 printf("Please try again.....\n");
                 goto start_buy;
                 }
                 else
                 {
                 *my_money_ptr = (*my_money_ptr - (heroin_choice * heroin_price));
                 *my_heroin_units_ptr = heroin_choice;
                 }
                 }
            case( '3' ):
                 goto start_buy;
   
   
           case( '4' ):
                 goto start_buy;








           case( '5' ): 
                 goto start_buy;








           case( '6' ): 
                 goto start_buy;   




           case( '7'): 
                 goto start_buy;    
   
           default :
                   goto start_buy;
   
  /* try again */
   }   
          
     }
     




















int main()
{
      double my_money;
	  int my_coke_units;
	  int my_heroin_units;
	  int my_crack_units;
	  int my_pcp_units;
	  int my_acid_units;
	  int my_pot_units;
    
      int days_left = 31;    
while(days_left > 0)
{
      printf(" Day %d of your quest. Where do you want to go\n", days_left);
      
      printf("----------------------------------------------\n");
      
      printf("1: Chicago\n");   
      printf("2: Detroit\n");  
      printf("3: Disneyland\n");    
      printf("4: Mexico City\n");  
      printf("5: Vatican City\n"); 
      printf("6: Columbo\n");
      
      int city_choice_selection;
      char city_choice[100];




                 
      fgets(city_choice, sizeof(city_choice), stdin);
      sscanf(city_choice, "%d", &city_choice_selection); 
      
      
      switch( city_choice_selection)
      {
      case 1: 
            {  
       Drug_buy(city_choice_selection, 
                      &my_money, 
                      &my_coke_units, 
                      &my_heroin_units, 
                      &my_crack_units, 
                      &my_pcp_units, 
                      &my_acid_units, 
                      &my_pot_units );         
                      }
       
       case 2: 
             
             
       case 3: 
             
       case 4: 




       default:
               printf("this is the default\n");
       }
days_left = days_left - 1;








}    








 
   system("pause");                     /* the fix for the collapsing window*/
    return (0);
}

You could troubleshoot it with a debugger...

What do you enter at the first prompt?

I entered 1 and Bang...... Show's over

Yes, but you're not looking for a number. You're looking for a city name:

Code:

printf("1: Chicago\n");   
printf("2: Detroit\n");  
printf("3: Disneyland\n");    
printf("4: Mexico City\n");  
printf("5: Vatican City\n"); 
printf("6: Columbo\n");
       
int city_choice_selection;
char city_choice[100];

fgets(city_choice, sizeof(city_choice), stdin);     // <--------
sscanf(city_choice, "%d", &city_choice_selection);

I'm guessing this means you didn't write this yourself? Try entering a city name. It still won't work, but it shouldn't crash again right away.

Also, check the warnings when you compile:

Code:

main.c||In function 'Drug_buy':|
main.c|29|warning: format '%s' expects type 'char *', but argument 2 has type 'int'|
main.c|32|warning: format '%d' expects type 'int', but argument 2 has type 'double'|
main.c|33|warning: format '%d' expects type 'int', but argument 2 has type 'double'|
main.c|34|warning: format '%d' expects type 'int', but argument 2 has type 'double'|
main.c|35|warning: format '%d' expects type 'int', but argument 2 has type 'double'|
main.c|36|warning: format '%d' expects type 'int', but argument 2 has type 'double'|
main.c|37|warning: format '%d' expects type 'int', but argument 2 has type 'double'|