manojgupta added a comment.
We also use Wno-enum-constexpr-conversion in ChromeOS. There are many packages
that break with this warning. One of them is boost which is used in many other
packages.
The errors in boost were:
./boost/mpl/aux_/integral_wrapper.hpp:73:31: error: integer value -1 is
outside the valid range of values [0, 3] for this enumeration type
[-Wenum-constexpr-conversion]
./boost/mpl/aux_/static_cast.hpp:24:47: note: expanded from macro
'BOOST_MPL_AUX_STATIC_CAST'
# define BOOST_MPL_AUX_STATIC_CAST(T, expr) static_cast<T>(expr)
^
I do not think boost upstream has updated these files, I see they were last
updated 3 years back.
https://github.com/boostorg/mpl/blob/master/include/boost/mpl/aux_/static_cast.hpp
and
https://github.com/boostorg/mpl/blob/master/include/boost/mpl/aux_/integral_wrapper.hpp
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D150226/new/
https://reviews.llvm.org/D150226
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