code: выполнен код для варианта

LABA1.cpp

@@ -108,11 +108,12 @@ static size_t progress_callback(void* clientp,
     double ultotal,
     double ulnow)
 {
-    //struct progress* memory = (progress*)clientp;
-    if (!isnan((dlnow / dltotal) * 100.0)) {
+    if (dltotal != 0) {
         cerr << "Progress: " << (double)(dlnow / dltotal) * 100.0 << "%\n";
     }
-    //cerr << "Progress: " << memory->privat << "\n";
+    else {
+        cerr << "Progress: " << "0" << "%\n";
+    }
     return 0; /* all is good */
 }