Windows error messages used for errno codes

[Lars T. Kyllingstad <lars.kyllingstad@…>]

Consider the following:

using namespace boost::system;
system_error e(errc::resource_unavailable_try_again, system_category());
std::cout << e.what() << std::endl;

This should print something along the lines of "Resource unavailable", but instead it prints "An attempt was made to load a program with an incorrect format".

The value of errc::resource_unavailable_try_again is 11, or EAGAIN. What is printed, however, is the message for the Windows system error code ERROR_BAD_FORMAT, which is also 11.

I encountered this while using boost::thread. I got the above message when I ran out of memory during thread creation.

[Lars T. Kyllingstad <lars.kyllingstad@…>]

I forgot to say, I am compiling with Visual Studio 2010 on Windows 7.

[s.cheban@…]

Try system_error e(errc::resource_unavailable_try_again, generic_category());