Thread: Problems with Arrays

Hi again ,

So I have written the following module, but it locks the computer or shows error messages... I still can't understand what's the problem with this code...

Here it is... (Should work under Borland C++ 3.1 for DOS/Win)
And I can't use struct in this project !!!

Code:

void firstclass_select()
{ //void firstclass_select() begin

	int w = 0;
        int x = 0;

	printf("First Class Selected\n");
                   
	plane_graph_first();

	while(w == 0)
	     { //while w for 0 begin
		printf("Enter seat Number: ");
		scanf("%d", &seat);

		if((seat <= 0)||(seat > 16))
		  printf("Out of range ! (1-16)");
		else
		  while(x == 0)
		       { //while x for 0 begin
                         y = 1;
			 if(*first[seat][y] == NULL)
			   { //001 if condition begin
			    printf("Enter Gender (M) or (F): ");

			    fgets(*first[seat][y]);

                            strupr(*first[seat][y]);

			    if((*first[seat][y] == 'M')||(*first[seat][y] == 'F'))
			      { //002 if condition begin
                                y++;

				printf("Enter Name & Surname: ");

				fgets(*first[seat][y]);

				printf("Is this a (R)eservation or is this ticket (S)old ?");

                                y++;

				fgets(*first[seat][y];

                                strupr(*first[seat][y];

				if((*first[seat][y] == 'R')||(*first[seat][y] == 'S'))
				  printf("\n\nPassenger saved in Array !!");
				  w++;
                                  x++;

				else
				  printf("%s unknown !!", *first[seat][y];
			      } //002 if condition end

			    else
                              printf("%s unknwon !!", *first[seat][y];

			    } //001 if condition end

			 else
			   printf("Seats already taken !!");
                       } //while x for 0 end			        	
                       	
	     } //while w for 0 end

	getch();

	clrscr();

} //void firstclass_select() end

Thanks in advance
client

Also have a look at http://www.cprogramming.com/cboard/s...threadid=18437

> what's the problem with this code...
Well, there could be, or are, alot of things.
Do you have anything in particular you would like us to look for or fix? Otherwise, there, I answered your question.

> Thanks in advance
Hey....anytime.

Originally posted by Monster

fgets(*first[seat][y]);
That's strange, I always thought that fgets had 2 arguments! [/B]

I'll up the ante, and says it's got 3.

The standard tells this about the function fgets(). I think this is correct.

7.19.7.2 The fgets function

Synopsis
1 #include <stdio.h>
char *fgets(char * restrict s, int n, FILE * restrict stream);

Description
2 The fgets function reads at most one less than the number of characters specified by n
from the stream pointed to by stream into the array pointed to by s. No additional
characters are read after a new-line character (which is retained) or after end-of-file. A
null character is written immediately after the last character read into the array.

Returns
3 The fgets function returns s if successful. If end-of-file is encountered and no
characters have been read into the array, the contents of the array remain unchanged and a
null pointer is returned. If a read error occurs during the operation, the array contents are
indeterminate and a null pointer is returned.

Shiro: whereabouts can you get a copy of the ANSI C standard?