code: выполнен код для варианта

LABA1.cpp

@@ -6,9 +6,14 @@
 #include <curl/curl.h>
 #include <sstream>
 #include <string>
+#include <cstdlib> 
 
 using namespace std;
 
+struct progress {
+    char* privat;
+    size_t size;
+};
 
 void svg_begin(double width, double height) {
     cout << "<?xml version='1.0' encoding='UTF-8'?>\n";
@@ -97,15 +102,31 @@ size_t write_header(char* buffer, size_t size, size_t nitems, void* userdata)
     return size * nitems;
 }
 
+static size_t progress_callback(void* clientp,
+    double dltotal,
+    double dlnow,
+    double ultotal,
+    double ulnow)
+{
+    struct progress* memory = (progress*)clientp;
+    cerr << "Progress: " << (dlnow / dltotal) * 100 << "%\n";
+    //cerr << "Progress: " << memory->privat << "\n";
+    return 0; /* all is good */
+}
+
 Input download(const string& address) {
     stringstream buffer;
 
+    struct progress data;
     CURL* curl = curl_easy_init();
     if (curl) {
         CURLcode res;
         curl_easy_setopt(curl, CURLOPT_URL, address.c_str());
+        curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0L);
         curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
         curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buffer);
+        curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, &data);
+        curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, progress_callback);
         curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, write_header);
         curl_easy_setopt(curl, CURLOPT_HEADERDATA, NULL);
         res = curl_easy_perform(curl);