RefRange doesn’t work if range primitives are not const

[dlangBugzillaToGithub]

ogion.art reported this on 2024-10-09T12:12:53Z

Transfered from https://issues.dlang.org/show_bug.cgi?id=24801

Description

import std.range;

unittest {
    static struct R
    {
        int front() => 0;
        void popFront() {}
        bool empty() => false;
    }
    R range;
    auto r = RefRange!R(&range);
}

src/phobos/std/range/package.d(12407): Error: mutable method `onlineapp.__unittest_L3_C1.R.front` is not callable using a `const` object
app.d(6):        Consider adding `const` or `inout` here
src/phobos/std/range/package.d(12433): Error: mutable method `onlineapp.__unittest_L3_C1.R.empty` is not callable using a `const` object
app.d(8):        Consider adding `const` or `inout` here
app.d(11): Error: template instance `std.range.RefRange!(R)` error instantiating

[dlangBugzillaToGithub]

dlang-bot commented on 2024-10-09T12:30:19Z

@Ogi-kun updated dlang/phobos pull request #9056 "Fix issue 24801 - `RefRange` doesn’t work if range primitives are not `const`" fixing this issue:

- Fix Bugzilla issue 24801 - `RefRange` doesn’t work if range primitives are not `const`

https://github.com/dlang/phobos/pull/9056