Export some symbols for Windows (#1088)

lib/inc/drogon/HttpTypes.h

@@ -14,6 +14,7 @@
 #pragma once
 #include <atomic>
 #include <thread>
+#include <iostream>
 
 namespace drogon
 {
@@ -168,5 +169,26 @@ enum class WebSocketMessageType
     Close,
     Unknown
 };
-
+inline std::ostream &operator<<(std::ostream &out, drogon::ReqResult result)
+{
+    switch (result)
+    {
+        case ReqResult::Ok:
+            return out << "OK";
+        case ReqResult::BadResponse:
+            return out << "Bad response from server";
+        case ReqResult::NetworkFailure:
+            return out << "Network failure";
+        case ReqResult::BadServerAddress:
+            return out << "Bad server address";
+        case ReqResult::Timeout:
+            return out << "Timeout";
+        case ReqResult::HandshakeError:
+            return out << "Handshake error";
+        case ReqResult::InvalidCertificate:
+            return out << "Invalid certificate";
+        default:
+            return out << "Unknown error";
+    }
+}
 }  // namespace drogon

lib/inc/drogon/utils/Utilities.h

@@ -28,8 +28,8 @@
 #include <algorithm>
 #ifdef _WIN32
 #include <time.h>
-char *strptime(const char *s, const char *f, struct tm *tm);
+DROGON_EXPORT char *strptime(const char *s, const char *f, struct tm *tm);
-time_t timegm(struct tm *tm);
+DROGON_EXPORT time_t timegm(struct tm *tm);
 #endif
 namespace drogon
 {

orm_lib/inc/drogon/orm/Criteria.h

@@ -256,15 +256,17 @@ class DROGON_EXPORT Criteria
     }
 
   private:
-    friend const Criteria operator&&(Criteria cond1, Criteria cond2);
+    friend DROGON_EXPORT const Criteria operator&&(Criteria cond1,
+                                                   Criteria cond2);
 
-    friend const Criteria operator||(Criteria cond1, Criteria cond2);
+    friend DROGON_EXPORT const Criteria operator||(Criteria cond1,
+                                                   Criteria cond2);
     std::string conditionString_;
     std::function<void(internal::SqlBinder &)> outputArgumentsFunc_;
 };  // namespace orm
 
-const Criteria operator&&(Criteria cond1, Criteria cond2);
+DROGON_EXPORT const Criteria operator&&(Criteria cond1, Criteria cond2);
-const Criteria operator||(Criteria cond1, Criteria cond2);
+DROGON_EXPORT const Criteria operator||(Criteria cond1, Criteria cond2);
 
 }  // namespace orm
 }  // namespace drogon