array inside struct

im having a problem getting this to work. the array....

Code:

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struct airline {
        int seats[11] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 } ;
      char  * customer;

};

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this is what i get:

Code:

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9 C:\Dev-Cpp\airlines.c [Warning] no semicolon at end of struct or union
9 C:\Dev-Cpp\airlines.c syntax error before '=' token
12 C:\Dev-Cpp\airlines.c syntax error before '}' token

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when i try int seats[11]; it works fine..
what can i do? thx

Code:

---

struct airline {
        int seats[11] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 } ;
      char  * customer;

};

---

You are creating a new data type first. Onces you've told your compiler what that new data type is all about, you can create a variable of that new type and initialized it. If you want to go even the extreme, you can declare that new variable, right after the definition of that new type:

Code:

---

struct airline{
    int seats[11];
    char  *customer;
}flight = { { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 } }; /* This is a partial initialization since nothing is done for the pointer customer */

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BTW, if you want to store 12 elements in the array; the subscript should be the same amount.

ok i think i solved the problem
what i did

Code:

---

struct airline {
        int seats[12] ;
      char  customer;
};

int main(int argc, char *argv[])
{
    struct airline seat[12] = { 1,2,3,4,5,6,7,8,9,10,11,12 };

---

this seemes to work just fine! =)

Quote:

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Originally Posted by tat

this seemes to work just fine! =)

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It only seems. You are doing something different that what you intended at first.
You are declaring an array of 12 elements of type struct airline; name seat.

If you want to initialize the int seats inside the structure:

Code:

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struct airline seat = { { 1,2,3,4,5,6,7,8,9,10,11,12 } };

---

[Edit] However if you want to declare a structure for every seat out of 12 seats then that's what you have.

You need to separate declarations and definitions, initializations.
First, you must tell the compiler how the actual struct looks like - ie, no initialization. Just tell the compiler how the struct looks like, how the array looks like, and so on.
When creating an object of that struct type, THAT is where you need to put the data you want into the struct.
I hope that makes sense, because it's exactly what Aia did.

Quote:

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Originally Posted by Elysia

You need to separate declarations and definitions, initializations.
First, you must tell the compiler how the actual struct looks like - ie, no initialization. Just tell the compiler how the struct looks like, how the array looks like, and so on.
When creating an object of that struct type, THAT is where you need to put the data you want into the struct.
.

---

is this what you mean?

Code:

---

struct airline {
        int seats[12];
      char  customer[BUFSIZ];
};


char showmenu ( void );  // proto functions  //
void shownumber ( struct airline nos );

int main(int argc, char *argv[])
{
    struct airline seats[12] = { 1,2,3,4,5,6,7,8,9,10,11,12 };

---

also i want to pass in the array of seats to a function so i can print it out!
how can i do this.. it dont work i get a
error of
31 C:\Dev-Cpp\airlines.c incompatible type for argument 1 of `shownumber'

Code:

---

struct airline {
        int seats[12];
      char  customer[BUFSIZ];
};

/**********************************************/
char showmenu ( void );  // proto functions  //
void shownumber ( struct airline nos );

/*******************************************/

/******************** MAIN******************************/
int main(int argc, char *argv[])
{
    struct airline seats[12] = { 1,2,3,4,5,6,7,8,9,10,11,12 };

     
    char choice;
   
while ( ( choice = showmenu() )!= 'f' )    // loop for menu
    {
        switch ( choice )
        {
          case 'a' : shownumber ( seats );
              break;
         
          case 'b' : printf(" you hit b");
              break;
          }
 
  system("PAUSE");       
  return 0;
}
}
/*********************** MENU FUNCTION *****************************/

char showmenu ( void ) 
{
  char ans;
  printf(" ********** Welcome to Swift Lines Airlines ************\n");
  printf("\n ********** To Choose A Function, Enter its Letter Label:\n");
  printf("\na ) Show Number of seats\n");
  printf("b ) Show List of seats\n");
  printf("c ) Show alphabetical list of seats\n");
  printf("d ) Assign a Customer to a seat assignment\n");
  printf("e ) Delete a seat assignment\n");
  printf("f ) Quit\n");
 
  ans = getchar();
  ans = tolower( ans );
 
  while ( strchr ( "abcdef" , ans ) == NULL )
  {
        puts( " please pick a - f :\n");
        ans = tolower( getchar() );
        }
  return ans;
}   
/********************** END MENU FUNCTION *************************/
 
void shownumber ( struct airline nos[] )
{
    int x;
    for ( x = 0 ; x < 12; X++ )
    {
  printf ( " swift Lines seats-- %d" , nos->seats );
}
}

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OK, first do you want an actual array of the struct or simply initialize the array INSIDE the struct? You're creating 12 instances of the struct currently.
Also, take a look at your declaration of the shownumber function. It doesn't match with your definition.

Quote:

---

Originally Posted by Elysia

OK, first do you want an actual array of the struct or simply initialize the array INSIDE the struct? You're creating 12 instances of the struct currently.
Also, take a look at your declaration of the shownumber function. It doesn't match with your definition.

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i wanted to initialize the array inside the struct then pass that array to a function to print it..

Quote:

---

Originally Posted by tat

i wanted to initialize the array inside the struct then pass that array to a function to print it..

---

Code:

---

#include <stdio.h>

struct airline {
        int seats[12] ;
      char  customer;
};

void printing( int *seat, int size );

int main(int argc, char *argv[])
{
    struct airline seat = { { 1,2,3,4,5,6,7,8,9,10,11,12 } };
   
    printing( seat.seats, sizeof seat.seats / sizeof ( int ) );
   
   
    getchar();
    return 0;
 
}
void printing( int *seat, int size )
{
        int i = 0;
       
        for ( i = 0; i < size; i++ )
        {
                printf( "%d ", *( seat + i ) );
        }
}
/* output:
1 2 3 4 5 6 7 8 9 10 11 12 */

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IF you have a struct, then I don't see why you shouldn't pass the entire struct instead of passing all members separately. And since there's only ONE struct with a static array, there's no need to pass the size of the struct either.

Aia - - - brilliant
thx

ohhh would this be considered a string?

Code:

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struct airline seat  = { { 1,2,3,4,5,6,7,8,9,10,11,12 }};

and thats why you did this?
void printing ( int *seat );

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dumb Q i know

Quote:

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Originally Posted by Elysia

IF you have a struct, then I don't see why you shouldn't pass the entire struct instead of passing all members separately.

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I tried to do that..

Quote:

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Originally Posted by tat

Aia - - - brilliant
thx

ohhh would this be considered a string?

Code:

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struct airline seat  = { { 1,2,3,4,5,6,7,8,9,10,11,12 }};

and thats why you did this?
void printing ( int *seat );

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dumb Q i know

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That's wrong. Pointer should be the same type as the the struct. You shouldn't needlessly pass a pointer of type airline to a function that wants int*.
Change your function:

Code:

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void printing(struct airline* seat);

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That is, if you want to pass the entire struct.

Quote:

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Originally Posted by tat

Aia - - - brilliant

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No really. Just a pointless exercise.

Quote:

---

Originally Posted by tat

ohhh would this be considered a string?

Code:

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struct airline seat  = { { 1,2,3,4,5,6,7,8,9,10,11,12 }};

---

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No. A string is an array of type char that terminates with the '\0' character.
This is just an array of integers.

Quote:

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Originally Posted by tat

and thats why you did this?

Code:

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void printing ( int *seat );

---

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printing accepts a pointer to an int.
passing seat.seats to the function printing is like passing the address of seat.seats[0]
I could have written: void printing( int seat[] )

12 seats, and only one passenger?

Surely you want

Code:

---

struct airline {
        int seat;
      char  customer[100];
};

// Now
struct airline seats[12];

Then you can do things like
seats[0].seat = 4;
strcpy( seats[0].customer, "Fred Flintstone");

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salem thats exactly what i want the program to do
yeah, i want to assign passengers to seat assignments..
thx