std::bitset::set

 

C++

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std::bitset

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bitset::bitset

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

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

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

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

bitset::set

bitset::reset

bitset::flip

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bitset::to_ulong

bitset::to_ullong (C++11)

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std::hash (C++11)

 

bitset<N>& set();	(1)
bitset<N>& set( size_t pos, bool value = true );	(2)

Sets all bits to true or to specified value.

1) Sets all bits to true.

2) Sets the bit at position pos to the value value.

Parameters

pos	-	the position of the bit to set (right-to-left)
value	-	the value to set the bit to

Return value

*this

Exceptions

1)

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

2) Throws std::out_of_range if pos does not correspond to a valid position within the bitset.

Example

Run this code

#include <iostream>
#include <bitset>
 
int main()
{
    std::bitset<8> b;
    for (size_t i = 1; i < b.size(); i += 2) {
        b.set(i);
    }
    std::cout << b << '\n';
}

Output:

10101010

See also

reset	sets bits to false (public member function)
flip	toggles the values of bits (public member function)