* Why is popen from stdio.h disabled with -std=c++11?
@ 2017-01-30 16:41 Пётр Б.
2017-01-30 17:38 ` Yaakov Selkowitz
0 siblings, 1 reply; 2+ messages in thread
From: Пётр Б. @ 2017-01-30 16:41 UTC (permalink / raw)
To: cygwin
See usr/include/stdio.h:343 (2016.12.16)
Why is popen from stdio.h disabled with -std=c++11? I am trying to
grasp it and I can't. It is exposed if -std=c11 but not for c++11.
What is the problem and can it be solved?
Why does -std=c++11 prevent POSIX visibility?
MinGW exposes popen as _popen, could it be an option for Cygwin?
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* Re: Why is popen from stdio.h disabled with -std=c++11?
2017-01-30 16:41 Why is popen from stdio.h disabled with -std=c++11? Пётр Б.
@ 2017-01-30 17:38 ` Yaakov Selkowitz
0 siblings, 0 replies; 2+ messages in thread
From: Yaakov Selkowitz @ 2017-01-30 17:38 UTC (permalink / raw)
To: cygwin
On 2017-01-30 10:41, ÐÑÑÑ Ð. wrote:
> Why is popen from stdio.h disabled with -std=c++11? I am trying to
> grasp it and I can't.
>
> It is exposed if -std=c11 but not for c++11.
No, it's not, you get an implicit function declaration warning in C.
C++ is simply less forgiving (which is not a bad thing in this case).
> What is the problem and can it be solved?
Use -std=gnu++11, or -D_DEFAULT_SOURCE with -std=c++11.
> Why does -std=c++11 prevent POSIX visibility?
Because it means ISO standard C++, which popen is not.
> MinGW exposes popen as _popen, could it be an option for Cygwin?
Absolutely not, that is an MSVC-ism.
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Yaakov
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2017-01-30 16:41 Why is popen from stdio.h disabled with -std=c++11? Пётр Б.
2017-01-30 17:38 ` Yaakov Selkowitz
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