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 b6e16e2d9b.
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Global front

boost::xpressive::front — front is a lazy PolymorphicFunctionObject for fetching the front element of a sequence in an xpressive semantic action.

Synopsis

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

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

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