добавление обработки ошибок

main.cpp

@@ -43,8 +43,13 @@ int main(int argc, char* argv[]) {
           CURLcode res;
           curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
           res = curl_easy_perform(curl);
+           if(res != CURLE_OK){
+            fprintf(stderr, "curl_easy_perform() failed: %s\n",
+          curl_easy_strerror(res));
+          exit(1);
+          }
           curl_easy_cleanup(curl);
-          cerr << res << " " << argc << " " << argv[0];
+
         }
         return 0;
     }