[Bug c++/56991] constexpr std::initializer_list rejects too complex initialization

["mizvekov at gmail dot com" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56991

--- Comment #2 from Matheus Izvekov <mizvekov at gmail dot com> 2013-04-18 08:10:19 UTC ---
I get also a similar bug:

#include <initializer_list>

//is accepted by gcc
constexpr std::initializer_list<int> good1 = { 1, 2, 3 };

struct foo { int a, b; };

//still ok
constexpr foo good2 = { 1, 2 };

//gcc rejects this
constexpr std::initializer_list<foo> bad = { { 1, 2 }, { 3, 4} };

Compiling this gives a similar error:

test.cc:12:64: error: ‘const std::initializer_list<foo>{((const foo*)(&
_ZGRL3bad0)), 2u}’ is not a constant expression
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From: "morwenn29 at hotmail dot fr" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/56991] constexpr std::initializer_list rejects too complex initialization
Date: Thu, 18 Apr 2013 08:12:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?idV991

--- Comment #3 from Morwenn <morwenn29 at hotmail dot fr> 2013-04-18 08:12:44 UTC ---
(In reply to comment #1)
> I don't see the compiler *crashing*, I see it *rejecting* the snippet.

Indeed, sorry for the poor formulation.