Purity issue on merge-2.064 branch

[Hackerpilot]

I'm getting the following error when using an LDC compiled from 4006fbb:

/usr/local/include/d/std/array.d(2222): Error: pure function 'std.array.Appender!string.Appender.ensureAddable' cannot call impure function 'core.stdc.string.memcpy'
/usr/local/include/d/std/range.d(614): Error: static assert  "Cannot put a string into a Appender!string"
/usr/local/include/d/std/format.d(2185):        instantiated from here: put!(Appender!string, string)
/usr/local/include/d/std/format.d(1907):        instantiated from here: formatRange!(Appender!string, string[], char)
/usr/local/include/d/std/conv.d(107):        instantiated from here: formatValue!(Appender!string, string[], char)
/usr/local/include/d/std/conv.d(866):        ... (4 instantiations, -v to show) ...
/usr/local/include/d/std/algorithm.d(8411):        instantiated from here: text!(string, string, string, string[], string)
stdx/lexer.d(327):        instantiated from here: sort!("a < b", cast(SwapStrategy)0, string[])

This same call to sort() during CTFE works with DMD.

[redstar]

Thanks for the report. What are you trying to compile (or better, do you have a small test case)?

[Hackerpilot]

import std.algorithm;
import std.stdio;

string f(string[] args)
{
    return `"whatever"`;
}

string[] arr(R)(R r)
{
    string[] s;
    foreach (i; r)
        s ~= i;
    return s;
}

enum items = ["abc", "def"];
enum a = f(arr(sort(items)));

void main(string[] args)
{
    mixin ("auto b = [" ~ a ~ "];");
    writeln(b);
}

[dnadlinger]

Seems like this issues has been fixed in Git master (2.065-based). You example code compiles fine for me.