Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
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Coding Standards
This is an older version of Boost and was released in 2024. The current version is 1.91.0.
Defined in header <boost/static_string/static_string.hpp>
template< std::size_t N, typename CharT, typename Traits> std::basic_ostream< CharT, Traits >& operator<<( std::basic_ostream< CharT, Traits >& os, const basic_static_string< N, CharT, Traits >& s);