typeof to decltype, typeof is not portable

libraries/user_input.h

@@ -10,12 +10,12 @@ constexpr auto all = std::numeric_limits<std::streamsize>::max();
 
 namespace math
 {
-    template<auto lb, typeof(lb) ub> [[maybe_unused]]
-    constexpr auto is_between(typeof(lb) x) -> bool { return (ub > x) && (x > lb); }
+    template<auto lb, decltype(lb) ub> [[maybe_unused]]
+    constexpr auto is_between(decltype(lb) x) -> bool { return (ub > x) && (x > lb); }
     template<auto lb> [[maybe_unused]]
-    constexpr auto is_larger(typeof(lb) x) -> bool { return (x > lb); }
+    constexpr auto is_larger(decltype(lb) x) -> bool { return (x > lb); }
     template<auto ub> [[maybe_unused]]
-    constexpr auto is_smaller(typeof(ub) x) -> bool { return (ub > x); }
+    constexpr auto is_smaller(decltype(ub) x) -> bool { return (ub > x); }
     template<typename T> [[maybe_unused]]
     auto numerical_suffix(T value) -> std::string
     {

project/client.h

@@ -23,7 +23,6 @@ public:
     explicit client() : networked(net::socket(AF_INET, SOCK_STREAM, 0)){}
     auto connect(const std::string& ip, const port port) -> std::thread
     {
-        const auto address = net::getaddrinfo(ip, std::to_string(port));
         auto remote_address = net::getaddrinfo(ip, std::to_string(port));
         if (!remote_address || net::connect(socket, remote_address) < 0)
             return std::thread();