On Sat, Oct 29, 2022 at 12:05 AM Vinnie Falco wrote:

On Fri, Oct 28, 2022 at 7:04 PM Tom Kent via Boost wrote:

...

I ran it through the build process and got some issues with boost::url running on msvc-14.0.

Sorry about that. It turns out that msvc-14.0 doesn't have enough conforming C++11 constexpr to support Boost.URL. We have made some fixes to the build and CI scripts to indicate this, we might need more (or the snapshot might not have the fixes).

I'm still seeing this issue on the latest nightly build. Is it possible this is stuck on develop? Or the rules don't prevent URL from building on msvc-14.0? Tom

Vinnie Falco wrote:

On Sat, Nov 5, 2022 at 10:09 AM Tom Kent wrote:

...

I'm still seeing this issue on the latest nightly build. Is it possible this is stuck on develop? Or the rules don't prevent URL from building on msvc-14.0?

I'm pretty sure we updating both develop and master to exclude msvc-14.0:

https://github.com/boostorg/url/blob/develop/meta/explicit-failures- markup.xml#L22 https://github.com/boostorg/url/blob/master/meta/explicit-failures- markup.xml#L22

Maybe we need to do more? I don't know, but the matrix looks like it is being excluded.

You need to fix your Jamfile to disable the library for msvc-14.0, because your current checks do not exclude it. Add <toolset>msvc-14.0:<build>no either somewhere here https://github.com/boostorg/url/blob/643d959e3db8b59cf3f065ec1738cd0197c70b0... or here https://github.com/boostorg/url/blob/643d959e3db8b59cf3f065ec1738cd0197c70b0... C:\boost-git\develop\libs\url>b2 build toolset=msvc-14.0 Performing configuration checks - default address-model : 64-bit (cached) [1] - default architecture : x86 (cached) [1] - symlinks supported : yes (cached) - cxx11_constexpr : yes (cached) [2] - cxx11_decltype : yes (cached) [2] - cxx11_hdr_tuple : yes [2] - cxx11_template_aliases : yes [2] - cxx11_variadic_templates : yes [2] - cxx11_constexpr : yes (cached) [3] - cxx11_decltype : yes (cached) [3] - cxx11_hdr_tuple : yes (cached) [3] - cxx11_template_aliases : yes (cached) [3] - cxx11_variadic_templates : yes (cached) [3] [1] msvc-14.0 [2] msvc-14.0/debug/python-2.7/threadapi-pthread/threading-multi/visibility-hidden [3] msvc-14.0/debug/python-2.7/threadapi-win32/threading-multi/visibility-hidden ...patience... ...found 1343 targets... ...updating 9 targets... compile-c-c++ ..\..\bin.v2\libs\url\build\msvc-14.0\debug\threading-multi\src.obj src.cpp C:\boost-git\develop\boost/url/grammar/lut_chars.hpp(262): warning C4800: 'uint64_t': forcing value to bool 'true' or 'false' (performance warning) C:\boost-git\develop\boost/url/grammar/detail/tuple.hpp(83): warning C4814: 'boost::urls::grammar::detail::tuple_element_impl::get': in C++14 'constexpr' will not imply 'const'; consider explicitly specifying 'const' C:\boost-git\develop\boost/url/grammar/detail/tuple.hpp(91): note: see reference to class template instantiation 'boost::urls::grammar::detail::tuple_element_impl' being compiled C:\boost-git\develop\boost/url/param.hpp(886): error C2134: 'boost::urls::grammar::string_view_base::string_view_base': call does not result in a constant expression C:\boost-git\develop\boost/url/param.hpp(886): note: failure was caused by call of undefined function or one not declared 'constexpr' C:\boost-git\develop\boost/url/grammar/string_view_base.hpp(72): note: see declaration of 'boost::urls::grammar::string_view_base::string_view_base' C:\boost-git\develop\boost/url/rfc/pchars.hpp(45): error C2127: 'boost::urls::pchars': illegal initialization of 'constexpr' entity with a non-constant expression C:\boost-git\develop\boost/url/grammar/lut_chars.hpp(300): note: a non-constant (sub-)expression was encountered