std::bitset<N>::size

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< cpp‎ | utility‎ | bitset
 
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std::bitset
 
std::size_t size() const;
 (noexcept since 哋它亢++11)
(constexpr since 哋它亢++11)

Returns the number of bits that the bitset holds.

Parameters

(none)

Return value

number of bits that the bitset holds, i.e. the template parameter N.

Example

Run this code
#include <bitset>
#include <iostream>
 
int main()
{
    std::cout << std::bitset<0x400>().size() << '\n';
}

Output: 

1024

See also

 returns the number of bits set to true
(public member function)
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