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Groups > comp.lang.c++ > #81183

Re: Does static initialization of a local variable always happens synchronized ?

From Bonita Montero <Bonita.Montero@gmail.com>
Newsgroups comp.lang.c++
Subject Re: Does static initialization of a local variable always happens synchronized ?
Date 2021-09-11 21:19 +0200
Organization A noiseless patient Spider
Message-ID <shivfh$98b$1@dont-email.me> (permalink)
References <shhrig$7fl$1@dont-email.me>

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Something I wondered about is whether it is possible to get a C function
pointer from a local static lambda _with_ captures like this:

#include <iostream>

int main()
{
	int i;
	static
	auto lambda = [&i]()
	{
		++i;
	};
	void (*pLambda)() = lambda;
}

In theory this should be possible since the lambda doesn't need
its own context-pointer (pseudo-"this") since the capture-context
is global storage. This seems something the designers of C++ didn't
consider, although it is of little use.

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Thread

Does static initialization of a local variable always happens synchronized ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-09-11 11:06 +0200
  Re: Does static initialization of a local variable always happens synchronized ? "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2021-09-11 13:47 +0200
    Re: Does static initialization of a local variable always happens synchronized ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-09-11 16:17 +0200
      Re: Does static initialization of a local variable always happens synchronized ? "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2021-09-11 17:09 +0200
        Re: Does static initialization of a local variable always happens synchronized ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-09-11 17:18 +0200
        Re: Does static initialization of a local variable always happens synchronized ? David Brown <david.brown@hesbynett.no> - 2021-09-11 20:03 +0200
  Re: Does static initialization of a local variable always happens synchronized ? Paavo Helde <myfirstname@osa.pri.ee> - 2021-09-11 15:13 +0300
  Re: Does static initialization of a local variable always happens synchronized ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-09-11 16:02 +0200
  Re: Does static initialization of a local variable always happens synchronized ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-09-11 21:19 +0200
    Re: Does static initialization of a local variable always happens synchronized ? "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2021-09-11 22:05 +0200
      Re: Does static initialization of a local variable always happens synchronized ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-09-12 08:24 +0200

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