Interface
Constructor
bitset()
Constructs a bitset with
all bits set to zero.
Constructor
bitset(
unsigned long value )
Constructs a bitset with
the first sizeof( value
) bits set to value .
Any remaining bits are set to zero.
Constructor
explicit
bitset( const string& str ,
size_t pos ,
size_t n )
Constructs a bitset with
the first n bits set to the string starting at str[
pos ] . If any of the characters in str[ pos...pos+n]
are not 0 or 1 ,
then an invalid_argument exception is thrown.
If the starting string offset pos exceeds the
length of str , then an out_of_range
exception is raised.
Throws: invalid_argument
, out_of_range
=
bitset<
N >& operator=( const bitset< N >& bits
)
Assigns bits
to bitset.
==
bool
operator==( const bitset< N >& bits
) const
Returns true
if bitset is equal to bits .
!=
bool
operator!=( const bitset< N >& bits
) const
Returns true
if bitset does not equal bits .
&=
bitset<
N >& operator&=( const bitset<N>& bits
)
Logically ANDs the bitset
with bits and returns a reference to the bitset.
|=
bitset<
N >& operator|=( const bitset<N>& bits
)
Logically ORs the bitset
with bits and returns a reference to the bitset.
^=
bitset<
N >& operator^=( const bitset<N>& bits
)
Logically XORs the bitset
with bits and returns a reference to the bitset.
<<=
bitset<
N >& operator<<=( size_t pos )
Logically shifts the
bitset's value to the left pos bits, and sets the
right-most bits to 0 . Returns a reference to
the bitset.
>>=
bitset<
N >& operator>>=( size_t pos )
Logically shifts the
bitset's value to the right pos bits, and sets the
left-most bits to 0 . Returns a reference to
the bitset.
<<
bitset<
N > operator<<( size_t pos )
const
Returns a bitset with a
value equivalent to bitset logically shifted left pos
bits.
>>
bitset<
N > operator>>( size_t pos )
const
Returns a bitset with a
value equivalent to bitset logically shifted right pos
bits.
~
bitset<
N > operator~() const
Returns the inverse of
bitset.
any
bool
any() const
Returns true
if any of the bitset's bits are set.
count
size_t
count() const
Returns the number of
bits that are set.
flip
bitset<
N >& flip()
Inverts all of the
bitset's bits, and returns a reference to the bitset.
flip
bitset<
N >& flip( size_t pos )
Inverts the bit at
position pos , and returns a reference to the
bitset. If pos is not a valid bit, an out_of_range
exception is raised.
Throws: out_of_range
none
bool
none() const
Returns true
if none of bitset's bits are set.
reset
bitset<
N >& reset()
Sets all of bitset's bits
to 0 and returns a reference to the bitset.
reset
bitset<
N >& reset( size_t pos )
Sets the bit at position pos
to 0 and returns a reference to the bitset. If pos
is not a valid bit, an out_of_range exception
is raised.
Throws: out_of_range
set
bitset<
N >& set()
Sets all the bitset's
bits to 1 , and returns a reference to the
bitset.
set
bitset<
N >& set( size_t pos ,
bool value )
Sets the bit at position pos
to value (default true
) and returns a reference to the bitset. If pos is
not a valid bit, an out_of_range exception is
raised.
Throws: out_of_range
size
size_t
size() const
Returns the number of
bits the bitset represents.
test
bool
test( size_t pos )
const
Returns true if the bit
at position pos is set. If pos
is not a valid bit, an out_of_range exception
is raised.
Throws: out_of_range
to_string
string
to_string() const
Returns a string
representing the bitset value, with each character representing one of the
bits. A character contains the value 1 if its
corresponding bit is set, or 0 otherwise.
to_ulong
unsigned
long to_ulong() const
Returns an unsigned long
representing the bitset value. If the bitset's value cannot be adequately
represented, an overflow_error exception is
raised.
Throws: overflow_error
