front doesn't compile for arrays of immutable data
Kenji Hara
k.hara.pg at gmail.com
Mon Jun 25 17:41:24 PDT 2012
On Monday, 25 June 2012 at 14:23:25 UTC, Roman D. Boiko wrote:
> import std.range;
> struct Element {
> //immutable // uncomment to break compilation
> int _i;
> this(int i) { _i = i; }
> }
> void main() {
> auto arr = [Element.init];
> arr.front;
> }
>
> Declaring _i immutable yields the following compilation error:
>
> /usr/include/x86_64-linux-gnu/dmd/phobos/std/array.d(460):
> Error: a[0LU] isn't mutable
> sample.d(11): Error: template instance
> std.array.front!(Element) error instantiating
>
> Is this a bug, or I misunderstand something?
This is a bug of the compiler, and it is already filed.
http://d.puremagic.com/issues/show_bug.cgi?id=6336
I've already posted a pull request to fix the bug, but it has
been hold a while.
Kenji Hara
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