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 the documentation for a snapshot of the develop branch, built from commit 872cb29692.
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Global first

boost::xpressive::first — first is a lazy PolymorphicFunctionObject for accessing the first element of a std::pair<> in an xpressive semantic action.

Synopsis

// In header: <boost/xpressive/regex_actions.hpp>

function< op::first >::type const first;

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