Обработка ошибок

cs-lab34.cpp

@@ -22,10 +22,25 @@ Input input_data(istream& in)
     in >> k.bin_count;
     return k;
 }
-int main()
-{
+int
+main(int argc, char* argv[]) {
+    if (argc > 1) {
+        CURL* curl = curl_easy_init();
+        if (curl) {
+            CURLcode res;
+            curl_easy_setopt(curl, CURLOPT_URL, argv[1]);
+            res = curl_easy_perform(curl);
+            if (res != 0) {
+                cout << curl_easy_strerror(res);
+                exit(1);
+            }
+            curl_easy_cleanup(curl);
+        }
+        return 0;
+    }
     curl_global_init(CURL_GLOBAL_ALL);
     Input in = input_data(cin);
     auto ch = make_histogram(in.numbers, in.bin_count);
     show_histogram_svg(ch);
+    return 0;
 }