4.7: индивидуальный вариант

main.cpp

@@ -64,15 +64,27 @@ Input download(const string& address) {
         if(curl) {
 
             CURLcode res;
+            curl_off_t avspeed;
             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 != CURLE_OK) {
+
                 curl_easy_strerror(res);
                 exit(1);
+            } else {
+                res = curl_easy_getinfo(curl, CURLINFO_SPEED_DOWNLOAD_T, &avspeed);
+                if (res != 0) {
+                    curl_easy_strerror(res);
+                    exit(1);
+                }
+                else {
+                    cerr << "Average speed: " << avspeed;
+                }
             }
+
             curl_easy_cleanup(curl);
         }
     return input_data(buffer, false);