错误:在网上找到的一个简单的C程序上，在'&' token|之前有“expected”

I found this program online to practice C. When I tried to compile this program in Code blocks, I am getting this error "error: expected ';', ',' or ')' before '&' token| " in two places (mentioned in the codes). It would be really helpful, if someone could explain me the reason for the error. I found this program online to practice C. When