Re: warning C4275, C4271when using boost::noncopyable

From: Roman Savchenko (gmstima_at_[hidden])
Date: 2020-05-14 11:46:19

I found an answer: it because noncopyable now inherit base_token.

Thanks,
Closed

чт, 14 мая 2020 г. в 13:30, Roman Savchenko <gmstima_at_[hidden]>:

> Hi,
>
> Thanks for response, but I do not want to use /MTd flag. And I'm sure that
> previous version of boost was compiled with /MD,
>
> Dump of file libboost_system-vc140-mt-gd-1_62.lib
>
> File Type: LIBRARY
>
>    Linker Directives
>    -----------------
>    /FAILIFMISMATCH:_MSC_VER=1900
>    /FAILIFMISMATCH:_ITERATOR_DEBUG_LEVEL=2
>    /FAILIFMISMATCH:RuntimeLibrary=MDd_DynamicDebug
>    /DEFAULTLIB:msvcprtd
>    /FAILIFMISMATCH:_CRT_STDIO_ISO_WIDE_SPECIFIERS=0
>    /DEFAULTLIB:uuid.lib
>    /DEFAULTLIB:uuid.lib
>    /DEFAULTLIB:MSVCRTD
>    /DEFAULTLIB:OLDNAMES
>
> Current version is compiled with /MD too:
> Dump of file .\libboost_system-vc140-mt-gd-x32-1_73.lib
>
> File Type: LIBRARY
>
>    Linker Directives
>    -----------------
>    /FAILIFMISMATCH:_MSC_VER=1900
>    /FAILIFMISMATCH:_ITERATOR_DEBUG_LEVEL=2
>    /FAILIFMISMATCH:RuntimeLibrary=MDd_DynamicDebug
>    /DEFAULTLIB:msvcprtd
>    /DEFAULTLIB:MSVCRTD
>    /DEFAULTLIB:OLDNAMES
>
>
>
>
> ср, 13 мая 2020 г. в 23:25, 😉 Good Guy 😉 via Boost-users <
> boost-users_at_[hidden]>:
>
>> On 13/05/2020 20:27, Roman Savchenko via Boost-users wrote:
>> > Hi All,
>> >
>> > I'm trying to update from boost 1.62 to boost 1.73. Boost 1.62 was
>> > built with VS15 140 toolchain with shared runtime (/MD) and as static
>> > lib. Boost 1.73 was built with VS19 140 toolchain with /MD and as
>> > static lib.
>>
>> Try using /MTd to see if it makes any difference.  See this article:
>>
>> <
>> https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-2-c4275?view=vs-2019
>> >
>>
>>
>> >
>> > I have a class:
>> >
>> > #include <boost/noncopyable.h>
>> >
>> > class __declspec(dllexport) A : private boost::noncopyable
>> >
>> > when I'm using 1.62 I do not have such warning.
>> > when I'm using 1.73 I do have such warning.
>> >
>> > I'll appreciate if anyone could help me to understand what I'm
>> > missing. Why does new version of header generate this warning?
>> >
>> > Thanks,
>> > Roman
>> >
>> > _______________________________________________
>> > Boost-users mailing list
>> > Boost-users_at_[hidden]
>> > https://lists.boost.org/mailman/listinfo.cgi/boost-users
>>
>>
>> --
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>