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boost::algorithm::all_of
// In header: <boost/algorithm/cxx11/all_of.hpp> template<typename InputIterator, typename Predicate> BOOST_CXX14_CONSTEXPR bool all_of(InputIterator first, InputIterator last, Predicate p);
| ![[Note]](../../../../../../doc/src/images/note.png) | Note | 
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| returns true on an empty range | 
| ![[Note]](../../../../../../doc/src/images/note.png) | Note | 
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| This function is part of the C++2011 standard library. | 
| Parameters: | 
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| Returns: | true if all elements in [first, last) satisfy the predicate 'p' |