diff --git a/src/ini_reader.h b/src/ini_reader.h
index dc067b4..6cff585 100644
--- a/src/ini_reader.h
+++ b/src/ini_reader.h
@@ -123,7 +123,7 @@ public:
         if(parsed)
             return GetErrorString(last_error);
         else
-            return "line " + std::__cxx11::to_string(last_error_index) + ": " + GetErrorString(last_error);
+            return "line " + std::to_string(last_error_index) + ": " + GetErrorString(last_error);
     }
 
     /**
@@ -639,7 +639,7 @@ public:
     */
     int SetDouble(std::string section, std::string itemName, double itemVal)
     {
-        return Set(section, itemName, std::__cxx11::to_string(itemVal));
+        return Set(section, itemName, std::to_string(itemVal));
     }
 
     /**
@@ -655,7 +655,7 @@ public:
     */
     int SetLong(std::string section, std::string itemName, long itemVal)
     {
-        return Set(section, itemName, std::__cxx11::to_string(itemVal));
+        return Set(section, itemName, std::to_string(itemVal));
     }
 
     /**
@@ -673,7 +673,7 @@ public:
     {
         std::string data;
         for(auto &x : Array)
-            data += std::__cxx11::to_string(x) + separator;
+            data += std::to_string(x) + separator;
         data = data.substr(0, data.size() - separator.size());
         return Set(section, itemName, data);
     }
diff --git a/src/main.cpp b/src/main.cpp
index 9926a60..12b86cc 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -19,6 +19,7 @@
 
 //common settings
 std::string pref_path = "pref.ini";
+bool generator_mode = false;
 string_array def_exclude_remarks, def_include_remarks, rulesets;
 std::vector<ruleset_content> ruleset_content_array;
 std::string listen_address = "127.0.0.1", default_url, managed_config_prefix;
diff --git a/src/misc.h b/src/misc.h
index 0fb2330..1a9de42 100644
--- a/src/misc.h
+++ b/src/misc.h
@@ -82,14 +82,11 @@ template <typename T> static inline void eraseElements(T &target)
 #ifndef HAVE_TO_STRING
 namespace std
 {
-    namespace __cxx11
+    template <typename T> std::string to_string(const T& n)
     {
-        template <typename T> std::string to_string(const T& n)
-        {
-            std::ostringstream ss;
-            ss << n;
-            return ss.str();
-        }
+        std::ostringstream ss;
+        ss << n;
+        return ss.str();
     }
 }
 #endif // HAVE_TO_STRING
diff --git a/src/subexport.cpp b/src/subexport.cpp
index 8aaf2a9..71daf18 100644
--- a/src/subexport.cpp
+++ b/src/subexport.cpp
@@ -789,7 +789,7 @@ std::string netchToSurge(std::vector<nodeInfo> &nodes, std::string &base_conf, s
         while(std::count(remarks_list.begin(), remarks_list.end(), remark) > 0)
             remark = x.remarks = x.remarks + "$";
         hostname = GetMember(json, "Hostname");
-        port = std::__cxx11::to_string((unsigned short)stoi(GetMember(json, "Port")));
+        port = std::to_string((unsigned short)stoi(GetMember(json, "Port")));
         username = GetMember(json, "Username");
         password = GetMember(json, "Password");
         method = GetMember(json, "EncryptMethod");
@@ -839,7 +839,7 @@ std::string netchToSurge(std::vector<nodeInfo> &nodes, std::string &base_conf, s
             obfs = GetMember(json, "OBFS");
             obfsparam = GetMember(json, "OBFSParam");
             proxy = "external, exec=\"" + ext.surge_ssr_path + "\", args=\"";
-            string_array args = {"-l", std::__cxx11::to_string(local_port), "-s", hostname, "-p", port, "-m", method, "-k", password, "-o", obfs, "-O", protocol};
+            string_array args = {"-l", std::to_string(local_port), "-s", hostname, "-p", port, "-m", method, "-k", password, "-o", obfs, "-O", protocol};
             if(obfsparam.size())
             {
                 args.emplace_back("-g");
@@ -855,8 +855,8 @@ std::string netchToSurge(std::vector<nodeInfo> &nodes, std::string &base_conf, s
                 return std::move(a) + "\", args=\"" + std::move(b);
             });
             //std::string ipaddr = (isIPv4(hostname) || isIPv6(hostname)) ? hostname : hostnameToIPAddr(hostname);
-            //proxy += "\", local-port=" + std::__cxx11::to_string(local_port) + ", addresses=" + ipaddr;
-            proxy += "\", local-port=" + std::__cxx11::to_string(local_port);
+            //proxy += "\", local-port=" + std::to_string(local_port) + ", addresses=" + ipaddr;
+            proxy += "\", local-port=" + std::to_string(local_port);
             local_port++;
         }
         else if(x.linkType == SPEEDTEST_MESSAGE_FOUNDSOCKS)
@@ -947,7 +947,7 @@ std::string netchToSurge(std::vector<nodeInfo> &nodes, std::string &base_conf, s
             return std::move(a) + "," + std::move(b);
         });
         if(vArray[1] == "url-test" || vArray[1] == "fallback")
-            proxy += ",url=" + url + ",interval=" + std::__cxx11::to_string(interval);
+            proxy += ",url=" + url + ",interval=" + std::to_string(interval);
 
         ini.Set("{NONAME}", vArray[0] + " = " + proxy); //insert order
     }
@@ -990,7 +990,7 @@ std::string netchToSS(std::vector<nodeInfo> &nodes, extra_settings &ext)
 
         remark = x.remarks;
         hostname = GetMember(json, "Hostname");
-        port = std::__cxx11::to_string((unsigned short)stoi(GetMember(json, "Port")));
+        port = std::to_string((unsigned short)stoi(GetMember(json, "Port")));
         password = GetMember(json, "Password");
         method = GetMember(json, "EncryptMethod");
         plugin = GetMember(json, "Plugin");
@@ -1057,7 +1057,7 @@ std::string netchToSSR(std::vector<nodeInfo> &nodes, extra_settings &ext)
 
         remark = x.remarks;
         hostname = GetMember(json, "Hostname");
-        port = std::__cxx11::to_string((unsigned short)stoi(GetMember(json, "Port")));
+        port = std::to_string((unsigned short)stoi(GetMember(json, "Port")));
         password = GetMember(json, "Password");
         method = GetMember(json, "EncryptMethod");
         protocol = GetMember(json, "Protocol");
@@ -1118,7 +1118,7 @@ std::string netchToVMess(std::vector<nodeInfo> &nodes, extra_settings &ext)
 
         remark = x.remarks;
         hostname = GetMember(json, "Hostname");
-        port = std::__cxx11::to_string((unsigned short)stoi(GetMember(json, "Port")));
+        port = std::to_string((unsigned short)stoi(GetMember(json, "Port")));
         method = GetMember(json, "EncryptMethod");
         id = GetMember(json, "UserID");
         aid = GetMember(json, "AlterID");
@@ -1181,7 +1181,7 @@ std::string netchToQuan(std::vector<nodeInfo> &nodes, extra_settings &ext)
         remark = x.remarks;
 
         hostname = GetMember(json, "Hostname");
-        port = std::__cxx11::to_string((unsigned short)stoi(GetMember(json, "Port")));
+        port = std::to_string((unsigned short)stoi(GetMember(json, "Port")));
         method = GetMember(json, "EncryptMethod");
         password = GetMember(json, "Password");
 
@@ -1274,7 +1274,7 @@ std::string netchToQuanX(std::vector<nodeInfo> &nodes, extra_settings &ext)
         remark = x.remarks;
 
         hostname = GetMember(json, "Hostname");
-        port = std::__cxx11::to_string((unsigned short)stoi(GetMember(json, "Port")));
+        port = std::to_string((unsigned short)stoi(GetMember(json, "Port")));
         method = GetMember(json, "EncryptMethod");
 
         switch(x.linkType)
@@ -1498,7 +1498,7 @@ void netchToMellow(std::vector<nodeInfo> &nodes, INIReader &ini, std::vector<rul
         while(std::count(remarks_list.begin(), remarks_list.end(), remark) > 0)
             remark = x.remarks = x.remarks + "$";
         hostname = GetMember(json, "Hostname");
-        port = std::__cxx11::to_string((unsigned short)stoi(GetMember(json, "Port")));
+        port = std::to_string((unsigned short)stoi(GetMember(json, "Port")));
         username = GetMember(json, "Username");
         password = GetMember(json, "Password");
         method = GetMember(json, "EncryptMethod");
diff --git a/src/webget.cpp b/src/webget.cpp
index 0bec195..c321208 100644
--- a/src/webget.cpp
+++ b/src/webget.cpp
@@ -49,7 +49,7 @@ std::string curlGet(std::string url, std::string proxy)
 std::string buildSocks5ProxyString(std::string addr, int port, std::string username, std::string password)
 {
     std::string authstr = username != "" && password != "" ? username + ":" + password + "@" : "";
-    std::string proxystr = "socks5://" + authstr + addr + ":" + std::__cxx11::to_string(port);
+    std::string proxystr = "socks5://" + authstr + addr + ":" + std::to_string(port);
     return proxystr;
 }