22 General utilities library [utilities]

22.9 Bitsets [bitset]

22.9.4 bitset operators [bitset.operators]

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template<size_t N> constexpr bitset<N> operator&(const bitset<N>& lhs, const bitset<N>& rhs) noexcept;
1
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Returns: bitset<N>(lhs) &= rhs.
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template<size_t N> constexpr bitset<N> operator|(const bitset<N>& lhs, const bitset<N>& rhs) noexcept;
2
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Returns: bitset<N>(lhs) |= rhs.
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template<size_t N> constexpr bitset<N> operator^(const bitset<N>& lhs, const bitset<N>& rhs) noexcept;
3
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Returns: bitset<N>(lhs) ^= rhs.
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template<class charT, class traits, size_t N> basic_istream<charT, traits>& operator>>(basic_istream<charT, traits>& is, bitset<N>& x);
4
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A formatted input function ([istream.formatted]).
5
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Effects: Extracts up to N characters from is.
Stores these characters in a temporary object str of type basic_string<charT, traits>, then evaluates the expression x = bitset<N>(str).
Characters are extracted and stored until any of the following occurs:
  • (5.1)
    N characters have been extracted and stored;
  • (5.2)
    end-of-file occurs on the input sequence;
  • (5.3)
    the next input character is neither is.widen('0') nor is.widen('1') (in which case the input character is not extracted).
6
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If N > 0 and no characters are stored in str, ios_base​::​failbit is set in the input function's local error state before setstate is called.
7
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Returns: is.
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template<class charT, class traits, size_t N> basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const bitset<N>& x);
8
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Returns: os << x.template to_string<charT, traits, allocator<charT>>( use_facet<ctype<charT>>(os.getloc()).widen('0'), use_facet<ctype<charT>>(os.getloc()).widen('1')) (see [ostream.formatted]).