Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
This is an older version of Boost and was released in 2018. The current version is 1.90.0.
All the value based traits in this library conform to MPL's requirements for an Integral Constant type.
Please note that these types no longer inherit from mpl::true_ or
mpl::false_ etc, and the library will no longer
implicitly include any MPL header. However there is an implicit conversion
from integral_constant to the
corresponding MPL types, therefore tag-dispatching that uses MPL types in function
overloads will still work as before.