code: added istream

main.cpp

@@ -7,8 +7,8 @@
 
 using namespace std;
 
-const size_t SCREEN_WIDTH = 80;
-const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
+//const size_t SCREEN_WIDTH = 80;
+//const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
 
 struct Input
 {
@@ -18,46 +18,54 @@ struct Input
 
 };
 
-Input input_data()
+Input
+input_data(istream& in)
 {
 
     size_t number_count, bin_count, IMAGE_WIDTH;
 
     cerr << "Enter number count: ";
-    cin >> number_count;
+    in >> number_count;
 
-    Input in;
+    Input n;
 
-    cerr << " Input width of image, >70 but not >800 : ";
-    cin >> in.IMAGE_WIDTH;
 
-    //size_t number_count = in.number_counts;
+    cerr << " Input width of image, > 70 but not >800 : ";
+    in >> n.IMAGE_WIDTH;
+    if(n.IMAGE_WIDTH < 70 || n.IMAGE_WIDTH > 800 ) {
+        while(n.IMAGE_WIDTH < 70 || n.IMAGE_WIDTH > 800) {
+            cerr << " Input width of image, >70 but not >800 : ";
+            in >> n.IMAGE_WIDTH;
+        }
+    }
 
-    in.numbers.resize(number_count);
 
+    //size_t number_count = in.number_counts;
+
+    n.numbers.resize( number_count );
     cerr << "Enter numbers: ";
     // vector<double> numbers(number_count);
 
     for (size_t i = 0; i < number_count; i++)
     {
-        cin >> in.numbers[i];
+        in >> n.numbers[i];
     }
 
     cerr << "Count of baskets: ";
-    cin >> in.bin_count;
+    in >> n.bin_count;
 
-    return in;
+    return n;
 }
 
 int main()
 {
 
-    auto in = input_data();
-    auto bins = make_histogram(in.numbers, in.bin_count);
+    auto n = input_data(cin);
+    auto bins = make_histogram( n.numbers, n.bin_count );
     //int chek_block_width(in.IMAGE_WIDTH);
     //chek_block_width(in.IMAGE_WIDTH, in.number_count);
     //if (chek_block_width==1)
-    show_histogram_svg(bins,in.IMAGE_WIDTH);
+    show_histogram_svg( bins,n.IMAGE_WIDTH );
     //if(chek_block_width==0) return 0;
     //show_histogram_svg(bins);