C++ Bitset Library - set() Function

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Description

The C++ function std::bitset::set() set single bit from bitset to either one or zero.

Declaration

Following is the declaration for std::bitset::set() function form std::bitset header.

C++98

 bitset& set (size_t pos, bool val = true); 

C++11

 bitset& set (size_t pos, bool val = true); 

Parameters

• pos − Position of the bit whose value is flipped.

• val − Value to be set.

Return value

Returns this pointer.

Exceptions

Throws out_of_range exception if pos is greater than or equal to bitset size.

Example

The following example shows the usage of std::bitset::set() function.

 #include <iostream> #include <bitset> using namespace std; int main(void) { bitset<4> b; cout << "Before set operation b = " << b << endl; b.set(0, 1); cout << "After set operation b = " << b << endl; return 0; } 

Let us compile and run the above program, this will produce the following result −

 Before set operation b = 0000 After set operation b = 0001