code: добавление параметров in и promt в функцию

main.cpp

@@ -9,26 +9,34 @@ struct Input {
     size_t bin_count{};
 };
 
-Input input_data() {
+Input input_data(istream& in, bool promt = false) {
+
+    //ïåðåìåííàÿ-ýêçåìïëÿð
+    Input qin;
+
     //ââîä êîëè÷åñòâà ÷èñåë
     size_t number_count;
-    cerr << "Enter number count: ";
-    cin >> number_count;
-    //ïåðåìåííàÿ-ýêçåìïëÿð
-    Input in;
-    //ââîä ÷èñåë
-    in.numbers.resize(number_count);
-    for (size_t i = 0 ; i < number_count ; i++) {
-        cin >> in.numbers[i];
+    if( promt ) {
+        cerr << "Enter number count: ";
     }
+    in >> number_count;
+
+    //ââîä ÷èñåë
+    qin.numbers.resize(number_count);
+    for (size_t i = 0 ; i < number_count ; i++) {
+        in >> qin.numbers[i];
+    }
+
     //ââîä êîëè÷åñòâà êîðçèí
-    cerr << "Enter bin count: ";
-    cin >> in.bin_count;
-    return in;
+    if( promt ) {
+        cerr << "Enter bin count: ";
+    }
+    in >> qin.bin_count;
+    return qin;
 }
 
 int main() {
-    auto in = input_data();
+    auto in = input_data(cin);
     auto bins = make_histogram(in.numbers, in.bin_count);
     show_histogram_svg(bins);
 }