C++ Bitsets give the programmer a set of bits as a data structure. Bitsets can be manipulated by various binary operators such as logical AND, OR, and so on.
The size of a C++ bitset is fixed at compile-time, and the size is the template parameter to the bitset. If you wanted to use a bitset whose size you can fix at runtime, you can use dynamic_bitset from the Boost library.
| Constructors | create new bitsets |
| Operators | compare and assign bitsets |
| any | true if any bits are set |
| count | returns the number of set bits |
| flip | reverses the bitset |
| none | true if no bits are set |
| reset | sets a single bit or all bits to zero |
| set | sets a single bit or all bits |
| size | number of bits that the bitset can hold |
| test | returns the value of a given bit |
| to_string | string representation of the bitset |
| to_ulong | returns an integer representation of the bitset |