1  /*
 2  * FILE : f3.cpp
 3  * PROJECT : SENG1000 - FOCUSED ASSIGNMENT 3
 4  * PROGRAMMER : Tian Yang
 5  * FIRST VERSION : 2024-02-01
 6  * DESCRIPTION :
 7  * This program calls a function to get a number from the user and displays whether the
 8  * number is greater than or less than or equal to 1000.
 9  */
10  
11  #include <stdio.h>
12  #include <stdbool.h>
13  
14  int getNum(void);
15  bool isGreaterThan(int);
16  
17  int main(int argc, char* argv[])
18  {
19  	printf("Please enter a number: ");
20  	int num = getNum();
21  
22  	if (isGreaterThan(num))
23  	{
24  		printf("%d is greater than 1000.\n", num);
25  	}
26  	else
27  	{
28  		printf("%d is less than or equal 1000.\n", num);
29  	}
30  
31  	return 0;
32  }
33  
34  //
35  // FUNCTION : isGreaterThan
36  // DESCRIPTION :
37  // This function compares a number with 1000.
38  // PARAMETERS :
39  // int num : this num is compared with 1000.
40  // RETURNS :
41  // bool : if is num greater than 1000.
42  //
43  bool isGreaterThan(int num)
44  {
45  	return num > 1000; // Check if the input number is greater than 1000.
46  }
47  
48  //
49  // FUNCTION : getNum
50  // DESCRIPTION :
51  // This function gets user-entered number.
52  // PARAMETERS :
53  // void : nothing input.
54  // RETURNS :
55  // int : return the number that user entered.
56  //
57  #pragma warning(disable: 4996) // required by Visual Studio
58  int getNum(void)
59  {
60  	/* the array is 121 bytes in size; we'll see in a later lecture how we can
61  	improve this code */
62  	char record[121] = { 0 }; /* record stores the string */
63  	int number = 0;
64  	/* NOTE to student: brace this function consistent with your others */
65  	/* use fgets() to get a string from the keyboard */
66  	fgets(record, 121, stdin);
67  	/* extract the number from the string; sscanf() returns a number
68  	* corresponding with the number of items it found in the string */
69  	if (sscanf(record, "%d", &number) != 1)
70  	{
71  		/* if the user did not enter a number recognizable by
72  		* the system, set number to -1 */
73  		number = -1;
74  	}
75  	return number;
76  }