[Issue 17210] DMD's Failure to Inline Calls in std.array.Appender.put Cause 3x Slowdown

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=17210

--- Comment #2 from Jack Stouffer <jack at jackstouffer.com> ---
BTW, making this @safe by changing the manual code to

            static if (isBasicType!U)
            {
                auto d = (() @trusted => _data.arr.ptr[0 .. len + 1])();
                d[len] = cast(Unqual!T) item;
                _data.arr = d;
            }

makes the code twice as slow as the other manual version

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