code: fixed while

l03.cpp

@@ -7,14 +7,15 @@
 
 using namespace std;
 
-const size_t SCREEN_WIDTH = 80;
+//const size_t SCREEN_WIDTH = 80;
-const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
+//const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
 
 struct Input
 {
     vector<double> numbers;
     size_t bin_count{};
     size_t IMAGE_WIDTH{};
+    bool valid;
     
 };
 
@@ -28,13 +29,19 @@ Input input_data()
 
     Input in;
 
+    
     cerr << " Input width of image, > 70 but not >800 : ";
     cin >> in.IMAGE_WIDTH;
+    if(in.IMAGE_WIDTH < 70 || in.IMAGE_WIDTH > 800 ) {
+        while(in.IMAGE_WIDTH < 70 || in.IMAGE_WIDTH > 800) {
+            cerr << " Input width of image, >70 but not >800 : ";
+            cin >> in.IMAGE_WIDTH;
+        }
+    }
 
     //size_t number_count = in.number_counts;
 
     in.numbers.resize( number_count );
-
     cerr << "Enter numbers: ";
     // vector<double> numbers(number_count);