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 2022. The current version is 1.89.0.
polymorphic_cast was suggested
by Bjarne Stroustrup in "The C++ Programming Language".
polymorphic_downcast was contributed
by Dave Abrahams.
polymorphic_pointer_downcast
was contributed by Boris
Rasin and polymorphic_pointer_cast
by Antony Polukhin.
polymorphic_downcast overload
for references was contributed by Julien Delacroix.
An old numeric_cast that was
contributed by Kevlin
Henney is now superseded by the Boost
Numeric Conversion Library