How to check if empty array in C

I have the following code in C:

int i = 0;
char delims[] = " \n";
char *result = NULL;
char * results[10];
result = strtok( cmdStr, delims );
while( result != NULL )
{
     results[i] = result;
     i++;
     result = strtok(NULL, " \n");
}

if(!results[1])
{
    printf("Please insert the second parameter...\n");
}
else
{
    ...
}

It always executes the else condition even if the results[1] is empty.

I've tried with results[1] == NULL but no success.

How do I can check if it is empty or not?