'subscripted value is neither array nor pointer nor vector' error

Question

I've read questions about similar problems, but 2D or dynamic arrays' problems has been solved there. (There are pointers, but I'd like to do it without them.)

#include <stdio.h>
#include <stdlib.h>

int interseq ( int, int ); // interval sequence

int main()
{
    int arr[100] = { 75, 47, 64, 45, 67, 51, 55, 36, 63, 30,
                     39, 58, 55, 67, 70, 44, 46, 51, 51, 61,
                     50, 54, 49, 51, 52, 54, 64, 68, 45, 40,
                     48, 60, 55, 37, 36, 13, 62, 53, 37, 53,
                     52, 49, 37, 54, 69, 44, 53, 58, 77, 46,

                     44, 63, 57, 64, 28, 46, 50, 57, 42, 72,
                     12, 69, 52, 53, 77, 50, 45, 49, 49, 46,
                     28, 40, 65, 25, 45, 45, 62, 28, 39, 69,
                     52, 57, 39, 73, 37, 46, 38, 65, 49, 58,
                     63, 30, 51, 48, 47, 56, 48, 41, 30, 54 };

    printf("%d", interseq ( arr, diagArr) );

    return 0;
} 

/* User's function. Description: 'farr' is 'arr' and so on..  */
int interseq ( int farr, int fdiagArr)
{
   int min, i;

   for ( i = 0; i < 100; i++ )    // Finding the 'min' element.
      if ( farr[i+1] < farr[i] )  // there are 2 errors 
          min = farr[i];          // there is 1 error 
      else
          min = farr[i+1];        // there is 1 error 

return 1;
}

The errors are the same:

error: subscripted value is neither array nor pointer nor vector

You should present the actual code. The variable fdiagArr isn't defined and that's the first error to look at. — Alexey Frunze

cnicutar cnicutar · Accepted Answer · 2013-04-11T10:29:08

Make those into pointers:

int interseq(int *farr, int *fdiagArr)
                 ^          ^

I can't see what diagArr is in your code so that part is speculation.

As simonc points in the comments, when i = 99, farr[i+1] will be illegal. You should stop earlier or change your algorithm.

'subscripted value is neither array nor pointer nor vector' error

2 Answers