...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
functionname
functionname — References a function with the given name
If a function (or overloaded function) with the given,
possibly-qualified name is found, this generates a link to that
function. Lookups obey currently-active using-class
and using-namespace
directives to aid in the search, along with searching within the
current scope.