22 General utilities library [utilities]

22.9 Bitsets [bitset]

22.9.1 Header <bitset> synopsis [bitset.syn]

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The header <bitset> defines a class template and several related functions for representing and manipulating fixed-size sequences of bits.
#include <string> // see [string.syn] #include <iosfwd> // for istream ([istream.syn]), ostream ([ostream.syn]), see [iosfwd.syn] namespace std { template<size_t N> class bitset; // [bitset.operators], bitset operators template<size_t N> constexpr bitset<N> operator&(const bitset<N>&, const bitset<N>&) noexcept; template<size_t N> constexpr bitset<N> operator|(const bitset<N>&, const bitset<N>&) noexcept; template<size_t N> constexpr bitset<N> operator^(const bitset<N>&, const bitset<N>&) noexcept; template<class charT, class traits, size_t N> basic_istream<charT, traits>& operator>>(basic_istream<charT, traits>& is, bitset<N>& x); template<class charT, class traits, size_t N> basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const bitset<N>& x); }