Adding variables

[Mckooy]

I need to add to variable and get the result to be held in another variable, here what ive out but its giving me errors:

printf("The total number of passengers onboard is %d\n\n", &totalpassengers = passengers + cardpassengers);

[ssharish2005]

printf("The total number of passengers onboard is %d\n\n", totalpassengers = passengers + cardpassengers);

ssharish2005

[Mckooy]

The code is going round on a loop and everytime I need it to add the prevoius result to the total which it total passengers;

/*************************************************/ 
/****          Bus Ticketing System           ****/ 
/*************************************************/ 

#include <stdio.h> 
#include <conio.h> 
#include "bcio2.h" 
#include <time.h>

void cash(void);//function prototype
void card(void);//function prototype
void time(void);//function prototype
void welcome(void);//function prototype
void totalpassengers(void);//function prototype

main()
{
	int passengers =0;
	int stops;
    int testnum;
	int totalpassengers = 0;
	int cardpassengers = 0;

		for(stops = 1; stops < 13 ; stops++) {
	do{
		
		welcome();
		time();

		totalpassengers = passengers + cardpassengers;

		printf("The total number of passengers onboard is %d\n\n", totalpassengers = passengers + cardpassengers);

		printf("This is stop number %d\n\n", stops);
		
		printf("Enter number of passengers for this one ticket\n\n");
		
		scanf("%d", &passengers);

		printf("Any bus passes? enter number\n\n");

		scanf("%d", &cardpassengers);
		
		printf("The cost of the ticket will be %.2f\n\n", passengers * 0.75);
			
		getch();
		clrscr();
		

		switch(testnum) {
		case 0 : continue;//function call
			break;
		case 1 : cash();//function call
			break;
		case 2 : card();//function call
			break;
		
		}
	}while(testnum !=0);
	return 0;
}
}

	/***********************************/
	/*** Start Of Function Defintions***/
	/***********************************/

	void cash(void)//function defintions
	{
		printf("There are %.2f passengers on this ticket, passengers * 0.75");
	}

	void card(void)//function definitions
	{
		printf("Welcome aboard card holder!");
	}

	void time(void)//function definitions
	{
		        char dateStr [9]; 
          char timeStr [9]; 
          _strdate( dateStr); 
          printf( "The current date is %s \n", dateStr); 
         _strtime( timeStr ); 
         printf( "The current time is %s \n\n", timeStr); 
	}

	void welcome(void)//function definion
	{
		puts("\t\t\tNAME EDITED OUT\n\t\t\tBus Ticketing System\n");
	}

[ssharish2005]

u need to align the code properly first of all

int main()
{
	int passengers =0;
	int stops;
    int testnum=0;
	int totalpassengers = 0;
	int cardpassengers = 0;

		for(stops = 1; stops < 13 ; stops++) 
        {
	       do
           {
		      welcome();
		      time();

		      printf("The total number of passengers onboard is %d\n\n", totalpassengers = passengers + cardpassengers);
		      printf("This is stop number %d\n\n", stops);
		      printf("Enter number of passengers for this one ticket\n\n");
		      scanf("%d", &passengers);
		      printf("Any bus passes? enter number\n\n");
		      scanf("%d", &cardpassengers);
		      printf("The cost of the ticket will be %.2f\n\n", passengers * 0.75);
		      printf("Test num : ");
		      scanf("%d",&testnum);
		      getch();
		      clrscr();
		      switch(testnum) 
              {
		          case 0 : continue;//function call
			         break;
		          case 1 : cash();//function call
			         break;
		          case 2 : card();//function call
			         break;
		      }
	       }while(testnum !=0);
        }
    return 0;
}

2. u dont get any value to exit from a loop u chek testnum is not equal but initally u havn't initialzed the testnu value. which actuall contains some junk
3. see the highlighted code

ssharish2005

[Salem]

totalpassengers = passengers + cardpassengers;
printf("The total number of passengers onboard is %d\n\n", totalpassengers);

Also, shouldn't you be doing this calculation AFTER you've input some data?

Also, time() is the name of a function in time.h. Declaring your own time() function as well simply confuses things.