What is wrong with this code? Always the output is "Yes"

Question

//Created by Homayoon Azizi
//Declares if an array is palindrome or not

#include <iostream>
using namespace std;

int main() {

char A[]="abcdefg";//length=7
int z,c=0,d=0;
for(int i=0;A[i]!='\0';i++)//__i=0~>6
c++;//_____________c=1~>7
z=c;//_____________z=7
c-=1;//____________c=6
for(int i=0;A[i]!='\0';i++){//_i=0~>6
if(A[i]=A[c])//___i=0~>6 c=6~>0
d++;//________d=1~>7
c-=1;}//_______c=5~>0

if(d==z)
cout<<"Yes";
else
cout<<"No";

return 0"
}

Answer 1

if you want to check if d and z have the same values, you should use '=='. Otherwise you will overwrite d with z value and see Yes in output anyway

Answer 2

@Petr Leliaev
i always write '=' instead of '=='. Anyway i run the code and again same problem,still the output is "Yes"!!