there is no warning number '4351'

Line 53 in 9a6d79b

    
           #pragma warning(disable: 4351) //  new behavior: elements of array will be default initialized

MSVC seems unsupport this warning

iam use MSVC 19/ 14.29.30133
cl.exe
Microsoft (R) C/C++ Optimizing Compiler Version 19.29.30146 for x64
with -std:c++20

so i got

boost/system/detail/error_category.hpp(53): warning C4619: #pragma warning: there is no warning number '4351'

I can't reproduce this. I'm trying the following program

#include <boost/system.hpp>
#include <iostream>

int main()
{
	std::cout << _MSC_FULL_VER << std::endl;
}

under VS 2019, and there's no warning. (The output is 192930146, so it's the same version of the compiler.)

yes i have the same _MSC_FULL_VER output
let me do small research about warning

iam enable many warning for cl.exe
so with /w14619
i got - there is no warning number '4351'

Yes, it looks like 4619 is disabled by default. There's another warning, 4616, for warning numbers that are even more invalid. :-)

It seems that warning 4351 has been removed in VS 2015 and later, so I'll disable it only for earlier versions.

ok will wait fix in upstream

Should be fixed with 7ae6b31.

i mean at master of boost
https://github.com/boostorg/boost/tree/master/libs
system @ 9a6d79b 8 days ago
still not update

Yes, I will update master as well, once CI passes on develop.

it seems ok, can be close issue