code: вариант

main.cpp

@@ -61,14 +61,18 @@ Input download(const string& address)
     stringstream buffer;
     CURL* curl = curl_easy_init();
     if(curl) {
-        CURLcode res;
+        CURLcode res,res1;
         curl_easy_setopt(curl, CURLOPT_URL, address.c_str());
         curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
         curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buffer);
         res = curl_easy_perform(curl);
-        if (res != 0){
-            cout << curl_easy_strerror(res);
-            exit(1);
+        if (!res){
+            double speed;
+            res1 = curl_easy_getinfo(curl, CURLINFO_SPEED_UPLOAD, &speed);
+            if(!res1){
+                cout << "Upload speed bytes/sec\n" << speed;
+                exit(1);
+            }
         }
         curl_easy_cleanup(curl);
     }