int binary[8];
char array;

for (i=0;i<8;i++)
    if(binary[i])
        "Here I want put 1 in the position bit of the variable array"
    else
        "Here I want put 0 in the position bit of the variable array"

int binary[8];
char array = 0;

int n = 8;
while (n) {
  array |= binary[--n];
  array <<= 1;
}

for (int i = 0; i < 8; i++)
    array |= binary[i] << i;