Fix issue #20: type cast in send(), add WSAStartup, and add CRTSECURE…

…_NO_WARNINGS for MSVC2013.

easywsclient.cpp

@@ -1,6 +1,8 @@
 #include "easywsclient.hpp"
 
 #ifdef _WIN32
+    // CRTSECURE_NO_WARNINGS for sscanf errors in MSVC2013 Express
+    #define CRTSECURE_NO_WARNINGS
     #ifndef WIN32_LEAN_AND_MEAN
         #define WIN32_LEAN_AND_MEAN
     #endif
@@ -203,7 +205,7 @@ class _RealWebSocket : public easywsclient::WebSocket
         while (txbuf.size()) {
             int ret;
 #ifdef _WIN32
-            ret = ::send(sockfd, (int8_t*)&txbuf[0], txbuf.size(), 0);
+            ret = ::send(sockfd, (char*)&txbuf[0], txbuf.size(), 0);
 #else
             ret = ::send(sockfd, &txbuf[0], txbuf.size(), 0);
 #endif

example-client-cpp11.cpp

@@ -2,6 +2,10 @@
 // g++ -std=gnu++0x example-client-cpp11.cpp -o example-client-cpp11
 #include "easywsclient.hpp"
 //#include "easywsclient.cpp" // <-- include only if you don't want compile separately
+#ifdef _WIN32
+#pragma comment( lib, "ws2_32" )
+#include <WinSock2.h>
+#endif
 #include <assert.h>
 #include <stdio.h>
 #include <string>
@@ -10,6 +14,17 @@
 int main()
 {
     using easywsclient::WebSocket;
+#ifdef _WIN32
+    INT rc;
+    WSADATA wsaData;
+
+    rc = WSAStartup(MAKEWORD(2, 2), &wsaData);
+    if (rc) {
+        printf("WSAStartup Failed.\n");
+        return 1;
+    }
+#endif
+
     std::unique_ptr<WebSocket> ws(WebSocket::from_url("ws://localhost:8126/foo"));
     assert(ws);
     ws->send("goodbye");
@@ -22,6 +37,9 @@ int main()
             if (message == "world") { wsp->close(); }
         });
     }
+#ifdef _WIN32
+    WSACleanup();
+#endif
     // N.B. - unique_ptr will free the WebSocket instance upon return:
     return 0;
 }