On Sun, 9 Jul 2017 09:55:22 -0700 Vinnie Falco via Boost wrote:
VFvB> 1. The one in is a header-only port of zlib to
VFvB> modern-ish C++11. There is a warning "‘*((void*)& old_flush +4)’ may
...
VFvB> For #1 The variable is not used uninitialized, I believe it is a false
VFvB> positive cause by the implementation of boost::optional. I have spent
VFvB> a lot of time trying to fix this, to no avail - if someone smarter
VFvB> than me can offer a patch I would be grateful.
There is a workaround mentioned at
http://www.boost.org/doc/libs/1_64_0/libs/optional/doc/html/boost_optional/t...
Otherwise you can just use gcc pragmas to suppress this warning locally, I
don't think there is anything else to do (FWIW this issue is tracked in
https://svn.boost.org/trac10/ticket/12513)
Regards,
VZ
