This has been formally requested several times. For example:
https://github.com/golang/go/issues/20443
https://github.com/golang/go/issues/22876
I'm also willing to bet you are basing your request on experience with a
language such as C. Adopting ideas from other languages is fine but
blindly, and simplistically, shoehorning a feature from another language
almost never has a satisfying result.
On Sun, Apr 11, 2021 at 4:33 PM 'Vladimir Efanov' via golang-nuts <
golang-nuts@googlegroups.com> wrote:
> Hi Go-Masters
>
> It will be very useful to get constant arrays in Golang.
> Programmers asked about it for years .
>
> For now we all should write not exported array definitions
> and exported functions to get read access to it.
>
> *What we need*
> const *M*yArray = [n]T = {...} or initMyArrayFunc()
>
> *What we have*
> // -----------------------------------
> var ws = [256]bool{' ': true, '\t': true, '\n\: true, '\r\: true}
> // IsWhitespace checks
> func IsWhitespace(c byte) bool {
> return whitespace[c]
> }
> // -----------------------------------
> var letter = [256]bool{
> 'A': true, 'B': true, 'C': true, 'D': true, 'E': true, 'F': true,
> ...
> }
> // IsLetterASCII checks a start of an ASCII identifier
> func IsLetterASCII(c byte) bool {
> return letter[c] // 'A'-'Z', 'a'-'z', '_'
> }
> and so on ...
>
>
>
> --
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> .
>
--
Kurtis Rader
Caretaker of the exceptional canines Junior and Hank
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