https://issues.dlang.org/show_bug.cgi?id=22561
Issue ID: 22561
Summary: only().joiner fails with immutable element type
Product: D
Version: D2
Hardware: x86_64
OS: Linux
Status: NEW
Severity: normal
Priority: P1
Component: phobos
Assignee: [email protected]
Reporter: [email protected]
import std;
immutable struct Foo {
int[] r;
}
void main() {
auto foo = [5].map!(a => only(Foo(null))).joiner;
}
expected: compiles
got: flood of errors
/dlang/dmd/linux/bin64/../../src/phobos/std/algorithm/iteration.d-mixin-3601(3616):
Error: cannot modify struct instance `this._current` of type
`OnlyResult!(immutable(Foo))` because it contains `const` or `immutable`
members
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