Bug 11428 – A simple std.array.array call at compile-time refused

I think this should work, I don't know if this is a regression: import std.array: array; const r1 = [""].array; // Error void main() { const r2 = [""].array; // OK } dmd 2.064beta4 gives: ...\dmd2\src\phobos\std\array.d(44): Error: returning a pointer to a local stack variable ...\dmd2\src\phobos\std\array.d(48): called from here: trustedGetAddr(result[i]) ...\dmd2\src\phobos\std\array.d(48): called from here: emplace(trustedGetAddr(result[i]), e) test.d(2): called from here: array([""])

It's not a regression, because array was not CTFE-able prior to 2.064. I say CTFE, because you are declaring a global static. This also recreates the issue: //---- import std.array: array; void main() { enum r1 = [""].array; // KO static const r2 = [""].array; // KO } //---- The "issue" seems to only happen if the element type is a string. I can't reproduce with other types. Further more, it only happens if the string is a literal. EG: //---- void main() { static const string r = ""; static const r1 = r.array; // OK static const r2 = [1].array; // OK static const r2 = [""].array; // ERROR } //---- Here is a reduced case. //---- T[] arr(T)(T[] input) { static T* getAddr(ref T t) { return &t; //Error: returning a pointer to a local stack variable } getAddr(input[0]); return input; } void main() { static const string r = ""; static const r1 = r.arr; // OK static const r2 = [1].arr; // OK static const r3 = [""].arr; // ERROR } //---- I can't really make any sense of this on my end. Maybe Don has an idea?

*** This issue has been marked as a duplicate of issue 11824 ***