Golang string end character

Question

I'm a newbie in Golang, so I'm playing with some algorithms and i have a little problem. In java for insert an end string in char array I can do like this:

String str = "Mr John Smith    ";
char[] arr = str.toCharArray();
arr[12] = '\0';

But in Golang I'm trying like this:

str := []byte("Mr John Smith    ")
str[12] = '\0'

But this code didn't work

Possible duplicate of Is there anyway to create null terminated string in Go? — icza
– icza, Commented Mar 3, 2017 at 23:23

Mr_Pink · Accepted Answer · 2017-03-03 17:34:03Z

6

That's not a valid syntax for a rune literal with a 0 value. You can use the hex escape sequence

str[12] = '\x00'

If you really need an octal value, it requires 3 digits

str[12] = '\000'

Or just assign a literal 0

str[12] = 0

You can see the valid rune literal escape sequences in the specification: https://golang.org/ref/spec#Rune_literals

answered Mar 3, 2017 at 17:34

Mr_Pink

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