Re: [go-nuts] When would you use single quotes?
> > The UTF8 encoding of that codepoint is three bytes. So the rune will > still occupy 4 bytes, even if the last byte holds no data? > A rune has nothing to do with UTF-8. A rune stores the codepoint which is totally independent of any encoding (like UTF-8, UTF-16, UTF-23, EBCDIC, whatnot). A rune is an integer, the number of the codepoint. An integer is stored in a certain number of bytes. Asking "So the rune will still occupy 4 bytes, even if the last byte holds no data?" is like asking "So the number 12 will still occupy 8 bits, even if the last 5 bits hold no data?". Yes. An integer is stored in 8 bytes (64bit architecture) and this is true even for "small" integers which would "fit" into one byte. A rune is an integer. It has nothing to do with UTF. V. -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [go-nuts] When would you use single quotes?
Thank you both for your answers. It is much appreciated. The UTF8 encoding of that codepoint is three bytes. So the rune will still occupy 4 bytes, even if the last byte holds no data? I'm sorry for the school boy question! Thank you. On Thu, 7 Feb 2019, 10:52 Tamás Gulácsi A rune is an int32, so it takes 4 bytes by definition. > A string in a struct with position, length and backing array of bytes. The > backing array here consumes 3 bytes, but tge position and length occupies > space too, so the string of that rune occupies more than 3 bytes after all. > > -- > You received this message because you are subscribed to a topic in the > Google Groups "golang-nuts" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/golang-nuts/-bvJLkhX_dY/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > golang-nuts+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > On Thu, 7 Feb 2019, 10:52 Tamás Gulácsi A rune is an int32, so it takes 4 bytes by definition. > A string in a struct with position, length and backing array of bytes. The > backing array here consumes 3 bytes, but tge position and length occupies > space too, so the string of that rune occupies more than 3 bytes after all. > > -- > You received this message because you are subscribed to a topic in the > Google Groups "golang-nuts" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/golang-nuts/-bvJLkhX_dY/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > golang-nuts+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [go-nuts] When would you use single quotes?
A rune is an int32, so it takes 4 bytes by definition. A string in a struct with position, length and backing array of bytes. The backing array here consumes 3 bytes, but tge position and length occupies space too, so the string of that rune occupies more than 3 bytes after all. -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [go-nuts] When would you use single quotes?
On Thu, Feb 7, 2019 at 11:25 AM Jamie Caldwell wrote: > But why would you use one over the other? Why does Go support being able to assign a codepoint using single quotes? `type rune` vs type `string` not the same, but is bit like `type byte` vs `type []byte`. The serve very different purposes. One cannot do the same things with `byte` that can be done with `[]byte`. > Also, why do they take more than three bytes each? `rune` is an alias of `int32`, hence 4 bytes. `string` is a two word struct, hence 2*size of pointer. 8 or 16 bytes. -- -j -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [go-nuts] When would you use single quotes?
Thank you for getting back to me, but I don't think you have answered my question. I understand they are a rune and string respectively. But *why* would you use one over the other? Why does Go support being able to assign a codepoint using single quotes? Also, why do they take more than three bytes each? Thank you. On Wed, 6 Feb 2019 at 23:30, Wagner Riffel wrote: > '⌘' is of type rune (aka int32), "⌘" and `⌘` are of type string, both > takes more than 3 bytes. > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [go-nuts] When would you use single quotes?
'⌘' is of type rune (aka int32), "⌘" and `⌘` are of type string, both takes more than 3 bytes. -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
