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Subject: Re: g++ std::map initializing raises segmentation fault.
To: cygwin AT cygwin DOT com
References: <20170706 DOT 212622 DOT 2189310858003243560 DOT trueroad AT trueroad DOT jp>
From: Marco Atzeri <marco DOT atzeri AT gmail DOT com>
Message-ID: <fbd18c39-f4bb-6660-d881-3ea2db19e898@gmail.com>
Date: Fri, 7 Jul 2017 14:51:29 +0200
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On 06/07/2017 14:26, Masamichi Hosoda wrote:
> Hello,
>
> On Cygwin 2.8.1 x86_64, I've found that g++ std:map initializing
> may raise segmentation fault.
> The binary compiled with cygwin-devel-2.8.0-1
> does not raise segmentation fault
> even if on Cygwin 2.8.1 x86_64 environments.
>
> So I suspect cygwin-devel-2.8.1-1 is the cause.
>
> Here's sample code for reproduce.
>
> ```
> // foo.cc
> // g++ -std=c++11 foo.cc
>
> #include<iostream>
> #include<map>
>
> std::map<int, int> m
> {
>   { 1, 1},
>   { 2, 2}
> };
>
> int main ()
> {
>   std::cout << "Hello World!" << std::endl;
> }
> ```
>
> I've reproduced it on both Windows 7 64 bit and Windows 10 64 bit.
>
> ```
> $ ./a
> Segmentation fault (core dumped)
>

I can not replicate.

$ uname -svr
CYGWIN_NT-6.1 2.8.1(0.312/5/3) 2017-07-03 14:11

$ ./a.exe
Hello World!


Please provide your cygcheck.out as attachment
> Problem reports:       http://cygwin.com/problems.html

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