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14 using namespace std;
15
16 float get_float(string message);
17 float check_valid_input(float check, float low, float high);
18 float calc_rect_area(float width, float height);
19
20 int main ()
21 {
22 float check, low, high;
23 float width, height;
24 string message;
25
26 const float MIN_VALUE = 1;
27 const float MAX_VALUE = 10;
28
29 float my_input = get_float("Enter a number from 1 to 10 ");
30 float sample_width = get_float("Enter the width for some imaginary rectangle");
31 float sample_height = get_float("Enter the height for some imaginary rectangle");
32
33 cout << my_input << endl;
34
35 cout << check_valid_input(my_input, MIN_VALUE, MAX_VALUE) << endl;
36
37 cout << calc_rect_area(sample_width, sample_height) << endl;
38
39 return 0;
40 }
41
42 float get_float(string message)
43 {
44 float check = atof(message.c_str());
45 return check;
46 }
47
48 float check_valid_input(float check, float low, float high)
49 {
50 float neg = -1.0;
51
52 if(check >= low && check <= high)
53 {
54 return check;
55 }
56 else
57 {
58 return neg;
59 }
60 }
61
62 float calc_rect_area(float width, float height)
63 {
64 if (height == 0)
65 return 0;
66 else
67 return width + calc_rect_area(width, --height);
68 }
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