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From:	Alberto Escrig Vidal <alberto DOT escrig AT itc DOT uji DOT es>
To:	The Cygwin Mailing List <cygwin AT cygwin DOT com>
Subject:	Re: Updated: gcc-7.3.0-2 (x86/x86_64)
Date:	Tue, 5 Jun 2018 18:07:29 +0000
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Some more imput: Problem (1) is related to getline. I prepared this minimal example after disecting a program that parses a text file which aborted under cygwin (despite it worked well compiled with g++-7 under ubuntu).


Thanks for the patch for problem (2) Ken!

________________________________
De: Alberto Escrig Vidal
Enviado: martes, 29 de mayo de 2018 19:32:39
Para: The Cygwin Mailing List
Asunto: Re: Updated: gcc-7.3.0-2 (x86/x86_64)



Thanks so much Jon!


I have noticed a couple of issues with g++-7.


1)


#include <string>
#include <iostream>
#include <sstream>

int main()
{
std::string Str;
std::stringstream ss("hello");
std::getline(ss,Str);
std::cout << Str;

return 0;
}

Compiling the above program with:

g++ -g -std=c++17 foo.cpp

Compiles just fine, but aborts when running it.

Running it with gdb:

Program received signal SIGABRT, Aborted.
0x6326126a in cygstdc++-6!_ZNSs7reserveEj () from /usr/bin/cygstdc++-6.dll

The program works fine if compiled with -std=c++14.

2)

This program fails to compile (it also failed with g++-6).

#include <shared_mutex>

int main() {}



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