Number Convertor

Golang

In my first graduate year, a professor assigned us to write a number converter in C(here). I liked the project, but I did not like C, so I decided to make this program again in GO.

Input

The input can be in binary, signed number, unsigned number, or hex as long as it is not out range of int32. You can input a number from 2,147,483,647 to 4,294,967,295, it is considered as an unsigned int32.

0x123  // a hex number
0b110  // a binary number
35     // a digital number
-10    // a digital number

Output

The output will print out 5 differernt types of number as following:

(signed) -3
(unsigned) 4294967293
(binary) 0b11111111111111111111111111111101
(binary) 1111 1111 1111 1111 1111 1111 1111 1101
(hex) 0xfffffffd

Error Handling

If the input format is not correct, or it’s too big or too small for int32, it tells

429496729323 is too big or too small(for int32).

0c123 is not a valid digital number

Using Go Routines

This project is just for me to practice, so I used unbuffered channels:

	bi := make(chan string)
	bih := make(chan string)
	hex := make(chan string)

	go func() {
		bi <- toBinary(un)
	}()

	go func() {
		bih <- toHumanReadBinary(un)
	}()

	go func() {
		hex <- toHex(un)
	}()