...I prefer to keep `const` here
    void f(ref T v) const { v = value; }
}

// I...

...the `foreach` variable, or both. Addressing only `const` on the `foreach` variable fixes the specific...

...of having a mutable reference to a const class is fundamentally different from trying to...

...is an incomplete fix. The example with `const` now works, but the same problem still...

https://issues.dlang.org/show_bug.cgi?id=24637

--- Comment #5 from Dlang Bot <dlang...

...const(char)[]) [0x83f9b75d5a3]
??:? void dmd.glue.generateCodeAndWrite(dmd.dmodule.Module[], const(char)*[],
const(char)[], const...

...d(77): Error:
expression `r` of type `const(__vector(int[4]))` does not have a...

...optimizations, but in general:

```D
void callee(const ref S x, S y) {
    y.bla...

...pointer points to may be modified (head const).

That leads me to the question for...

...24851 - Some members of CustomFloat can have const this" was merged into master:

- 8b051674ccad978a6668b074ac9c345c543c414a by...