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
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The Comparison operators: ==,
!=, <,
<=, >=
and >= work generically
on all Fusion sequences. Comparison operators are "short- circuited":
elementary comparisons start from the first elements and are performed
only until the result is clear.
#include <boost/fusion/sequence/comparison.hpp> #include <boost/fusion/include/comparison.hpp>