std::bitset::all, std::bitset::any, std::bitset::none

 

C++

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std::bitset

Member types

bitset::reference

Member functions

bitset::bitset

bitset::operator==bitset::operator!=

Element access

bitset::operator[]

bitset::test

bitset::allbitset::anybitset::none (C++11)

bitset::count

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bitset::operator&=bitset::operator|=bitset::operator^=bitset::operator~

bitset::operator<<=bitset::operator>>=bitset::operator<<bitset::operator>>

bitset::set

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bitset::to_string

bitset::to_ulong

bitset::to_ullong (C++11)

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operator&operator|operator^

operator<<operator>>

Helper classes

std::hash (C++11)

 

bool all() const;	(1)	(since C++11)
bool any() const;	(2)
bool none() const;	(3)

Checks if all, any or none of the bits are set to true.

1) Checks if all bits are set to true

2) Checks if any bits are set to true

3) Checks if none of the bits are set to true

Parameters

(none)

Return value

1) true if all bits are set to true, otherwise false

2) true if any of the bits are set to true, otherwise false

3) true if none of the bits are set to true, otherwise false

Exceptions

(none)	(until C++11)
noexcept specification:   noexcept	(since C++11)

Example

Run this code

#include <iostream>
#include <bitset>
 
int main()
{
    std::bitset<4> b1("0000");
    std::bitset<4> b2("0101");
    std::bitset<4> b3("1111");
 
    std::cout << "bitset\t" << "all\t" << "any\t" << "none\n";
    std::cout << b1 << '\t' << b1.all() << '\t' << b1.any() << '\t' << b1.none() << '\n';
    std::cout << b2 << '\t' << b2.all() << '\t' << b2.any() << '\t' << b2.none() << '\n';
    std::cout << b3 << '\t' << b3.all() << '\t' << b3.any() << '\t' << b3.none() << '\n';
}

Output:

bitset  all     any     none
0000    0       0       1
0101    0       1       0
1111    1       1       0