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Editorial Team
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Asked: 2026-06-06T12:01:25+00:00

Apparently there’s a maximum number of arguments for std::thread for the std::thread implementation in

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Apparently there’s a maximum number of arguments for std::thread for the std::thread implementation in the current MSVC 2012 RC.

This code compiles fine with both MSVC and g++ with -std=c++0x:

std::thread t = std::thread(printf, "%d, %d, %d, %d", 1, 2, 3, 4);
t.join();

But for more than 6 arguments, MSVC returns an error:

std::thread t = std::thread(printf, "%d, %d, %d, %d, %d", 1, 2, 3, 4, 5);
t.join();

error C2661: ‘std::thread::thread’ : no overloaded function takes 7
arguments

Is this somehow intended? Or maybe a bug in the MSVC implementation? Is it because there’s no support for variadic templates in MSVC yet?

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1 Answer

  1. Editorial Team

    MSVC2010 does not have variadic templates so they’re implemented with the help of the preprocessor.

    I think you can set a #define to set the number of arguments supported. I can check later, when i’m back at home, which one it is.

    EDIT:

    I just realized this is about 2012 version. As can bee read in VS connect bug report it still does not support variadic templates.

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