std::bitset

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C++ Standard Library
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Utilities library
Type support (basic types, RTTI, type traits) Dynamic memory management Error handling Program utilities Variadic functions Date and time Function objects initializer_list (C++11) bitset hash (C++11) Relational operators rel_ops::operator!= rel_ops::operator> rel_ops::operator<= rel_ops::operator>= Pairs and tuples pair tuple (C++11) piecewise_construct_t (C++11) piecewise_construct (C++11) Swap, forward and move swap forward (C++11) move (C++11) move_if_noexcept (C++11) declval (C++11)
std::bitset
Member types bitset::reference Member functions bitset::bitset bitset::operator= bitset::operator== bitset::operator!= Element access bitset::operator[] bitset::test bitset::all bitset::any bitset::none (C++11)   bitset::count Capacity bitset::size Modifiers bitset::operator&= bitset::operator|= bitset::operator^= bitset::operator~ bitset::operator<<= bitset::operator>>= bitset::operator<< bitset::operator>> bitset::set bitset::reset bitset::flip Conversions bitset::to_string bitset::to_ulong bitset::to_ullong (C++11) Non-member functions operator& operator| operator^ operator<< operator>> Helper classes std::hash (C++11)

Defined in header <bitset>
template< size_t N > class bitset;

The class template bitset represents a fixed-size sequence of bits. Bitsets can be manipulated by usual logic operators, converted to and from strings and integers.

Contents 1 Member types 2 Member functions 2.1 Element access 2.2 Capacity 2.3 Modifiers 2.4 Conversions 3 Non-member functions 4 Helper classes

[edit] Member types

reference	proxy class representing a reference to a bit (class)

[edit] Member functions

(constructor)	constructs the bitset (public member function)
operator=	assigns the contents (public member function)
operator== operator!=	compares the contents (public member function)
Element access
operator[]	accesses specific bit (public member function)
test	accesses specific bit (public member function)
all any none (C++11)	checks if all, any or none bits are set to true (public member function)
count	returns the number of bits set to true (public member function)
Capacity
size	returns the size number of bits that the bitset can hold (public member function)
Modifiers
operator&= operator|= operator^= operator~	performs binary AND, OR, XOR and NOT (public member function)
operator<<= operator>>= operator<< operator>>	performs binary shift left and shift right (public member function)
set	sets bits to true or given value (public member function)
reset	sets bits to false (public member function)
flip	toggles the values of bits (public member function)
Conversions
to_string	returns a string representation of the data (public member function)
to_ulong	returns an unsigned long integer representation of the data (public member function)
to_ullong (C++11)	returns an unsigned long long integer representation of the data (public member function)

[edit] Non-member functions

operator& operator| operator^	performs binary logic operations on bitsets (function)
operator<< operator>>	performs stream input and output of bitsets (function)

[edit] Helper classes

std::hash<std::bitset> (C++11)	hash support for std::bitset (class template specialization)