some help maybe...

[uncle_al]

#include <stdio.h>
#include <string.h>
#define ROWS 10
#define COLS 10
#define PLACE 15

typedef struct
{
   char placeName[PLACE];
   int miles[10];
}distances;

int menu(void);
void calcDistance(distances []);
void totalCost(distances []);
void dispChart(distances []);
void readFile(distances []);

int main()
{
   int choice;
   distances places[10];
   readFile(places);

   choice=menu();
   while(choice !=4)
   {
     switch(choice)
     {
      case 1:/*display distance*/
            dispDistance(places);
      break;
      case 2:/*calculate cost of journey*/
            journeyCost(places);
      break;
      case 3:/*display the chart*/
            dispChart(places);
      break;
      default:
          puts("Please enter a valid number");
     }/*end switch*/
    choice=menu();
    }/*end while*/

      return 0;
}

int menu(void)
{
      int menuChoice;
      puts("\n");
      puts("Menu");
      puts("1) Display distance between two places");
      puts("2) Calculate the cost of a journey");
      puts("3) Display the mileage chart");
      puts("Please select your choice or enter 0 to quit:");
      scanf("%d",&menuChoice);
      fflush(stdin);

      return menuChoice;
}/*end menu*/

void calcDistance(distances places[])
{
      int loop;
      char start,end;
      printf("Enter the name of the starting location: ");
	  scanf("%d",&start);

      printf("Enter the next location or exit to return to the main menu: ");
      scanf("%d",&end);

      do
        {
          if x[loop+1] !=-1
          distances[row].miles[col]
          loop++
         }/*end do*/
       while loop<5;
      return;
}/*end calcDistance*/

void totalCost(distances places[])
{
    /*not sure how to call dispDistance*/
    int dist;
    float cost;

    if(dist <=100)
    {
       cost = dist * 0.4;
    }
    else if(dist >100)
    {
       cost =(100 * 0.4)+((dist-100)*0.3);
    }
	printf("Cost of the journey is: %f\n", cost);

}/*end totalCost*/

void dispChart(distances places[])
{
    int row,col;
    puts("Mileage chart");
      for(row=0;row<ROWS;row++)
      {
         puts("");/*New line before each row*/
         printf("%s\t",places[row].placeName);/*offset by 1(so 1,2,3,4,5 instead of 0,1,2,3,4)*/

         for(col=0;col<COLS;col++)
         {
              printf("%d\t",places[row].miles[col]);
         }/*end for*/
      }/*end for*/

}/*end dispChart*/

void readFile(distances places[])
{
 int loop;
 int innLoop;
 FILE *fp;
 fp=fopen("distance_chart.txt","r");
 if(fp==NULL)
 {
   puts("\nFile not opened");
 }/*end if*/
 else
 {
   puts("\nOutput.....");
   for(loop=0;loop<10;loop++)
   {
     fscanf(fp,"%s",places[loop].placeName);
     for(innLoop=0;innLoop<10;innLoop++)
     {
     fscanf(fp,"%d",&places[loop].miles[innLoop]);
     }/*end for*/


   }/*end for*/

   if(fclose(fp)!=0)
   {
      puts("\nError closing file");
   }/*end if*/
  }/*end else*/
}/*end readFromFile*/

int placeSearch (distances places[])
{
   char place[PLACE];
   int loop;

   scanf("%s",place);

   for(loop=0;loop<10;loop++)
   {
      if(strcmp(place,places[loop].placeName)==0)
      {
      return loop;
      }
   }
   return -1;

}/*end placeSearch*/

In calcDistance I can't get the program to display the distance between two places?? Any suggestions??

[matsp]

Perhaps you can post code that actually compiles, as (at least) the calcDistance function has syntactical errors that do not allow it to compile.

--
Mats

[DaveH]

For starters, loop is not initialized, and row and col are not defined.

[Elysia]

http://cpwiki.sourceforge.net/Fflush
http://cpwiki.sourceforge.net/Buffer_overrun

[iMalc]

Calculating distance requires subtracting things. How were you planning on calculating distance?

[uncle_al]

int calcDistance(distances places[])
{
      int loop;
      int x[10];
      int start,end;
      printf("Enter the name of the starting location: ");
	  scanf("%d",&start);

      printf("Enter the next location or exit to return to the main menu: ");
      scanf("%d",&end);


      return distances[start].miles[end];
}/*end calcDistance*/

int placeSearch (distances places[])
{
   char place[PLACE];
   int loop;

   scanf("%s",place);

   for(loop=0;loop<10;loop++)
   {
      if(strcmp(place,places[loop].placeName)==0)
      {
      return loop;
      }
   }
   return -1;

}/*end placeSearch*/

The issue I have here is calling the placeSearch function from calcDistance and assigning the index retured to start/end respectively?

[matsp]

So what do you think you need to change in your calcDistance function to make it call the placeSearch function?

--
Mats

[uncle_al]

scanf("%d",&start);

           scanf("%d",&end);

I think it should be something on these lines?

[matsp]

scanf("%d",&start);

           scanf("%d",&end);

I think it should be something on these lines?

Yes, that would probably help. And what do you think will do the right thing here?

--
Mats

[uncle_al]

int calcDistance(distances places[])
{
      int loop;
      int x[10];
      int start,end;
      printf("Enter the name of the starting location: ");
	  scanf("%d",&start[loop]);

      printf("Enter the next location or exit to return to the main menu: ");
      scanf("%d",&end[loop]);


      return distances[start].miles[end];
}/*end calcDistance*/

?

[matsp]

int calcDistance(distances places[])
{
      int loop;
      int x[10];
      int start,end;
      printf("Enter the name of the starting location: ");
	  scanf("%d",&start[loop]);

      printf("Enter the next location or exit to return to the main menu: ");
      scanf("%d",&end[loop]);


      return distances[start].miles[end];
}/*end calcDistance*/

?

And how is that making use of the searchPlace function?

Not to mention that it won't compile and loop is uninitialized.

--
Mats

[uncle_al]

int calcDistance(distances places[])
{
      int loop;
      int x[10];
      int start,end;
      printf("Enter the name of the starting location: ");
	  scanf("%d",&start[places]);

      printf("Enter the next location or exit to return to the main menu: ");
      scanf("%d",&end[places]);

      return distances[start].miles[end];
}/*end calcDistance*/

[matsp]

int calcDistance(distances places[])
{
      int loop;
      int x[10];
      int start,end;
      printf("Enter the name of the starting location: ");
	  scanf("%d",&start[places]);

      printf("Enter the next location or exit to return to the main menu: ");
      scanf("%d",&end[places]);

      return distances[start].miles[end];
}/*end calcDistance*/

It seems like you randomly change your code without actually trying to compile it. It would help if the code you post is at least compilable and doesn't contain syntactically incorrect C code.

--
Mats