error: subscripted value is neither array nor pointer nor vector in C

Question

the_project.c:73:22: error: subscripted value is neither array nor pointer nor vector

it gives the error above and the line 73 is the following.

customer_table[my_id][3] = worker_no;

I declared the array global as follows

int *customer_table;     //All the info about the customer

This line of code is in a function not in main. And I allocate memory for this global array in the main. What may this cause this problem?

The "nor vector" part of the error message makes me think you're compiling as C++, not as C. If you want to compile C code, use a C compiler. — Keith Thompson, Jan 08 '12 at 12:38
Interesting. It's related to a [gcc extension](http://gcc.gnu.org/onlinedocs/gcc-4.6.2/gcc/Vector-Extensions.html). — Keith Thompson, Jan 08 '12 at 12:46

score 4 · Accepted Answer · edited May 23 '17 at 10:28

4

You're declaring a pointer-to-int. So cutomer_table[x] is an int, not a pointer. If you need a two-dimensional, dynamically allocated array, you'll need a:

int **customer_table;

and you'll need to be very careful with the allocation.

(See e.g. dynamic memory for 2D char array for examples.)

edited May 23 '17 at 10:28

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answered Jan 08 '12 at 12:12

Mat

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score 0 · Answer 2 · answered Jan 08 '12 at 12:11

The problem is that customer_table[my_id] is not a pointer or array and hence you cannot use [] on it.

Note that the first dereference using [] is OK since customer_table is a pointer. Once you apply the first [] it becomes an int, though.

Perhaps what you really want to use is

int **customer_table;

error: subscripted value is neither array nor pointer nor vector in C

2 Answers2