code:итоговый вариант программы с седьмым вариантом

laba1cb/lab1final/main.cpp

@@ -16,10 +16,21 @@ struct Input {
     size_t bin_count{};
 };
 
+ int progress_callback(void *clientp, double dltotal, double dlnow, double ultotal, double ulnow)
+{
+    if(dltotal > 0) {
+        double progress = ((dlnow * 100) / dltotal);
+        cerr << "Progress: " << progress << "%" << endl;
+    }
+    return 0;
+}
+
+
 size_t
 write_data(void* items, size_t item_size, size_t item_count, void* ctx) {
      size_t data_size = item_size * item_count;
 
+
     stringstream* buffer = reinterpret_cast<stringstream*>(ctx);
     buffer->write(reinterpret_cast<const char*>(items), data_size);
 
@@ -62,6 +73,8 @@ download(const string& address) {
          curl_easy_setopt(curl, CURLOPT_URL, address.c_str());
         curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
         curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buffer);
+        curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0L);
+        curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, progress_callback);
 
         res = curl_easy_perform(curl);
         if (res != 0)