basic question in C

[ikilobo]

helo, i wanna ask a basic question in my C program below

#include<stdio.h>

unsigned m,n;
unsigned a[100];
unsigned b[100];

c=a; m>=n; //error in this line, why??
for (int i=0; i<n; i++){
    c[i]=c[i]^b[i]
    }
return c;

error msg:
[warning]initialization makes integer from pointer without a cast

[csuft20083800]

"initializa tion makes integer from pointer without a cast".That means you you cann't assign a pointer to a integer variable.In this case,'a' is a pointer and 'c' is a integer variable.You can change the declaration as follows:

 int* c ;
 c = a ;

Any questions please send me a message.

[akinidu]

Where is your main function

int main (){
}

[whodgson]

a and b are empty arrays.
m and n are not initialized.
you are attempting to XOR a[i] with b[i]using (^) when the elements at best are assigned 0.
Plus as akinidu points out your main() function with return 0; is missing.