Invalid error error C2871 when using functions defined within nested namespaced in lambdas.

Invalid error error C2871 when using functions defined within nested namespaced in lambdas. by TheTFo

Closed

as Fixed

Type:	Bug
ID:	688198
Opened:	9/13/2011 2:02:19 PM
Access Restriction:	Public
Moderator Decision:	Sent to Engineering Team for consideration

Workaround(s)

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User(s) can reproduce this bug

I get error C2871 when I use function defined within nested namespaces in a lambda

Details (expand)

Visual Studio 2010 SP1

Empty Project, Build

#include <iostream>

namespace Outer
{
    namespace Middle
    {
        namespace Inner
        {
            void f(int) {}
        }
    }
}

int Harness()
{
    using namespace Outer;
    using namespace Outer::Middle;
    using namespace Outer::Middle::Inner;

    auto lam = []() {
        f(42);
    };

    return 0;
}

int main()
{
    return Harness();
}

English

Windows 7

English

1>------ Build started: Project: Sandbox, Configuration: Debug Win32 ------
1>Build started 9/13/2011 4:59:37 PM.
1>InitializeBuildStatus:
1> Touching "Debug\Sandbox.unsuccessfulbuild".
1>ClCompile:
1> main.cpp
1>c:\users\u0095655\documents\visual studio 2010\projects\sandbox\sandbox\main.cpp(21): error C2871: 'Inner' : a namespace with this name does not exist
1>c:\users\u0095655\documents\visual studio 2010\projects\sandbox\sandbox\main.cpp(21): error C2871: 'Middle' : a namespace with this name does not exist
1>c:\users\u0095655\documents\visual studio 2010\projects\sandbox\sandbox\main.cpp(22): error C3861: 'f': identifier not found
1>
1>Build FAILED.
1>
1>Time Elapsed 00:00:00.36
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

Successful build

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Posted by Microsoft on 9/14/2011 at 11:02 AM

Hi:
A fix for this issue has been checked into the compiler sources. The fix should show up in the next release of Visual C++.

Xiang Fan
Visual C++ Team

Posted by MS-Moderator10 [Feedback Moderator] on 9/13/2011 at 9:29 PM

Thanks for your feedback.

We are rerouting this issue to the appropriate group within the Visual Studio Product Team for triage and resolution. These specialized experts will follow-up with your issue.

Posted by MS-Moderator01 on 9/13/2011 at 2:43 PM

Thank you for your feedback, we are currently reviewing the issue you have submitted. If this issue is urgent, please contact support directly(http://support.microsoft.com)