Homework 3, A multiple base calculator.

Short Description:

This assignment is worth 20 points.

Goals

• Modified an existing program to perform another task.

Formal Description

Your program should support the following operations:

• Add two numbers (+)
• Multiply two numbers (*)
• Convert a number from one base to a different base (%)
• Compare two numbers (<, > =)
• Quit (!).

• base: an integer between 2 and 35
• number: a string which contains digits 0-9 and A-Z, digits will be less than the specified base.

To add two numbers

• The input will be in the form of number base + number base = base
• Example: 1100 2 + A 16 = 5
• Read in the the first number and base and convert this to base 10
• read in the +
• read in the second number and base, convert these to base 10
• Perform the operation in base 10
• Convert the sum to the output base
• Print the output number, on a line followed by a newline character.

For Convert

• The input will be in the form of number base % base
• Convert the input number to base 10
• Convert the base 100 number to the new base
• Output the new number on a line followed by a newline character.

• The input will be in the form number base operator number base
• Where operator will be '<', '>', or '='
• Convert the two numbers to base 10
• Perform the comparison
• Print "TRUE" if the statement is true, or "FALSE" if the statement is false"

• the input will be "!"
• Your program should exit.

1100 2 + A 16 = 5
1100 2 * A 16 = 5
1100 2 % 12
1100 2 < A 16
1100 2 > A 16
1100 2 =  A 16
!

42
440 
10
FALSE
TRUE
FALSE

Discussion

• You should NOT prompt for input
• You must start with the code in single.C.
• You may not modify IntToNum, StringToInt, DigitToChar, CharToDigit. I don't care.
• You are not responsible for errors in the four routines mentioned above, nor are you responsible for input errors.
• You should use functions and a modular design to accomplish this program.
• We will revisit this program on future assignments.

Required Files

Submission