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	Wed, 30 Oct 2024 09:14:32 -0700 (PDT)
Message-ID:	<764d17ab-a660-4e89-8fd3-175e93f11507@gmail.com>
Date:	Wed, 30 Oct 2024 17:14:27 +0100
MIME-Version:	1.0
User-Agent:	Mozilla Thunderbird
Subject:	Re: g++ 12 -std=gnu++20
To:	cygwin AT cygwin DOT com
References:	<48e51b50-63db-4b14-b321-46942e40862e AT SystematicSW DOT ab DOT ca>
	<3805509C-51BA-46F9-95A3-007CE99B014A AT unified-streaming DOT com>
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From:	=?utf-8?q?Csaba_R=C3=A1duly_via_Cygwin?= <cygwin AT cygwin DOT com>
Reply-To:	=?UTF-8?Q?Csaba_R=C3=A1duly?= <rcsaba AT gmail DOT com>
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On 30/10/2024 17:00, Dimitry Andric via Cygwin wrote:
> #include<string>
> #include<cassert>
>
> constexpr bool foo()
> {
>    std::string str2{"abcwe"};
>    return str2.size()==5;
> }
>
> static_assert(foo());
>
> int main()
> {
>    assert(foo());
> }

Seems like _GLIBCXX_USE_CXX11_ABI is not defined by default.

Csaba

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