Converting from an integer to its binary representation

binary go numeric
cobie picture cobie · Dec 14, 2012 · Viewed 44.1k times · Source

Has anyone got an idea if there is any inbuilt functionality in Go for converting from any one of the numeric types to its binary number form.

For example, if 123 was the input, the string "1111011" would be the output.

Answer

I Hate Lazy picture I Hate Lazy · Dec 14, 2012

The strconv package has FormatInt, which accepts an int64 and lets you specify the base.

n := int64(123)

fmt.Println(strconv.FormatInt(n, 2)) // 1111011

DEMO:

Related questions

How do I dump the struct into the byte array without reflection?

I already found encoding/binary package to deal with it, but it depended on reflect package so it didn't work with uncapitalized(that is, unexported) struct fields. However I spent a week to find that problem out, I still have …

Read More
Reading binary file and looping over each byte

In Python, how do I read in a binary file and loop over each byte of that file?

Read More
What does the 'b' character do in front of a string literal?

Apparently, the following is the valid syntax: my_string = b'The string' I would like to know: What does this b character in front of the string mean? What are the effects of using it? What are appropriate situations to use …

Read More