For this exercise, you will write a program to convert numbers to different base

Question

For this exercise, you will write a program to convert numbers to different bases. For example:

FF16 = 25510 = 3778 = 111111112 = C321 = 7336

Your program will prompt the user to enter a number and the base of the number. It will then ask what base to convert the number to. Your program will handle bases 2-36.

Your program should include the following features:

- If the user enters a base outside the range, display an error message and make the user reenter the base.

- If the number doesn’t match the base the user typed in (i.e., the character A is invalid for a base 10 numbers), display an error message and have the user reenter all of the information again.

- The number displayed to the user should be displayed in uppercase.

- Be sure your output is self-documenting. For example: FF(base 16) = 255(base 10).

Hints:

- The maximum digit that can be in a number is one less than its base. For example, 7 is the maximum digit in a base 8 number, and 1 is the maximum digit in a base 2 number.

- Convert all numbers to base 10 first and then convert them to the desired base.

- Since the number is entered into a character array, each digit is a character. You must convert this ASCII value to the appropriate value for that base. For example, A is value 10, B is value 11; to calculate these values, use the ASCII value for the alphabetic character and subtract 55. This works because A is ASCII value 65, B is ASCII value 66. If the character in the array happens to be a digit (i.e., numeral), use the same philosophy but subtract 48.

If you are unsure how to change bases, please review Chapter 1.

Explanation / Answer

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

main()

{

                char string[1024];

                int length;

                printf("ASCII Input: ");

                gets(string);

                printf(" ");

                printf(" ");

                printf("Decimal Ouput:");

                for(length = 0; length < strlen(string); length++)

                {

                                printf("%d ", string[length]);

                }

                printf(" ");

                printf("Hexadecimal Output: ");

                for(length = 0; length < strlen(string); length++)

                {

                                printf("%x ", string[length]);

                }

                printf(" ");

                printf("Octal Output:");

                for(length = 0; length < strlen(string); length++)

                {

                                printf("%o ", string[length]);

                }

                printf(" ");

                printf(" ");

                system("pause");

                return 0;

}

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