Global variables

[gast128]

Hello all,

tried to debug our startup code and get a lot of hits in initialization code of Boost.Container due to some global static variables:

• static const vector_uninitialized_size_t vector_uninitialized_size = vector_uninitialized_size_t();
• static const ordered_range_t ordered_range = ordered_range_t();
• static const ordered_unique_range_t ordered_unique_range = ordered_unique_range_t();
• static const default_init_t default_init = default_init_t();
• static const value_init_t value_init = value_init_t();
• static piecewise_construct_t piecewise_construct = BOOST_CONTAINER_DOC1ST(unspecified, *std_piecewise_construct_holder<>::dummy);

Can these be turned into inline constexpr for C++17 and higher; e.g.:

• BOOST_INLINE_CONSTEXPR vector_uninitialized_size_t vector_uninitialized_size = vector_uninitialized_size_t();
• BOOST_INLINE_CONSTEXPR ordered_range_t ordered_range = ordered_range_t();
• etc.

I think BOOST_INLINE_CONSTEXPR expands to 'inline constexpr' when available and otherwise to 'const'. It may miss the 'static const' case though. Perhaps there is a Boost guideline.

Using Boost 1.79 but it seems not changed since then.