в:17

main.cpp

@@ -1,3 +1,9 @@
+/* Äîêóìåíòàöèÿ cURL:
+CURLOPT_FAILONERROR:
+https://curl.se/libcurl/c/CURLOPT_FAILONERROR.html
+https://curl.se/libcurl/c/libcurl-errors.html#CURLEHTTPRETURNEDERROR
+*/
+
 #include <iostream>
 #include <vector>
 #include "histogram.h"
@@ -57,13 +63,23 @@ download(const string& address)
     {
         curl_easy_setopt(curl, CURLOPT_URL, address.c_str());
 
+    // -----âàð 17
+        curl_easy_setopt(curl, CURLOPT_FAILONERROR, 1L); //Ïðåâðàùàåò HTTP-îøèáêè (ñòàòóñû 4xx è 5xx) â îøèáêè cURL
+    //-------
+
         curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
         curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buffer);
 
         CURLcode res = curl_easy_perform(curl);
         if (res != CURLE_OK)
         {
-            cerr << "cURL error: " << curl_easy_strerror(res) << endl;
+            // -----âàð 17
+           if (res == CURLE_HTTP_RETURNED_ERROR) {
+                cerr << "HTTP Error: Server returned 4xx/5xx status code for URL: " << address << endl; //Òî÷å÷íî îáðàáàòûâàåì ñëó÷àé, êîãäà ñåðâåð âåðíóë îøèáêó
+            } else {
+                cerr << "cURL error (" << res << "): " << curl_easy_strerror(res) << endl;
+            }
+            //--------
             curl_easy_cleanup(curl);
             exit(1);
         }