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 2015. The current version is 1.89.0.
boost::algorithm::first_finder — "First" finder
// In header: <boost/algorithm/string/finder.hpp> template<typename RangeT> unspecified first_finder(const RangeT & Search); template<typename RangeT, typename PredicateT> unspecified first_finder(const RangeT & Search, PredicateT Comp);