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Date: Wed, 30 Oct 2024 17:14:27 +0100
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Subject: Re: g++ 12 -std=gnu++20
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From: =?utf-8?q?Csaba_R=C3=A1duly_via_Cygwin?= <cygwin AT cygwin DOT com>
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Sender: "Cygwin" <cygwin-bounces~archive-cygwin=delorie DOT com AT cygwin DOT com>

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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