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 master branch, built from commit 01b856e70e.
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null_deleter

Header <boost/core/null_deleter.hpp>

Authors

  • Andrey Semashev

The header <boost/core/null_deleter.hpp> defines the boost::null_deleter function object, which can be used as a deleter with smart pointers such as unique_ptr or shared_ptr. The deleter doesn't do anything with the pointer provided upon deallocation, which makes it useful when the pointed object is deallocated elsewhere.

std::shared_ptr< std::ostream > make_stream()
{
    return std::shared_ptr< std::ostream >(&std::cout, boost::null_deleter());
}

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