Struct bit_set::BitSet [−][src]
pub struct BitSet<B = u32> { /* fields omitted */ }
Implementations
Creates a new BitSet
with initially no contents, able to
hold nbits
elements without resizing.
Examples
use bit_set::BitSet;
let mut s = BitSet::with_capacity(100);
assert!(s.capacity() >= 100);
Creates a new BitSet
from the given bit vector.
Examples
extern crate bit_vec;
extern crate bit_set;
fn main() {
use bit_vec::BitVec;
use bit_set::BitSet;
let bv = BitVec::from_bytes(&[0b01100000]);
let s = BitSet::from_bit_vec(bv);
// Print 1, 2 in arbitrary order
for x in s.iter() {
println!("{}", x);
}
}
Returns the capacity in bits for this bit vector. Inserting any element less than this amount will not trigger a resizing.
Examples
use bit_set::BitSet;
let mut s = BitSet::with_capacity(100);
assert!(s.capacity() >= 100);
Reserves capacity for the given BitSet
to contain len
distinct elements. In the case
of BitSet
this means reallocations will not occur as long as all inserted elements
are less than len
.
The collection may reserve more space to avoid frequent reallocations.
Examples
use bit_set::BitSet;
let mut s = BitSet::new();
s.reserve_len(10);
assert!(s.capacity() >= 10);
Reserves the minimum capacity for the given BitSet
to contain len
distinct elements.
In the case of BitSet
this means reallocations will not occur as long as all inserted
elements are less than len
.
Note that the allocator may give the collection more space than it requests. Therefore
capacity can not be relied upon to be precisely minimal. Prefer reserve_len
if future
insertions are expected.
Examples
use bit_set::BitSet;
let mut s = BitSet::new();
s.reserve_len_exact(10);
assert!(s.capacity() >= 10);
Consumes this set to return the underlying bit vector.
Examples
use bit_set::BitSet;
let mut s = BitSet::new();
s.insert(0);
s.insert(3);
let bv = s.into_bit_vec();
assert!(bv[0]);
assert!(bv[3]);
Returns a reference to the underlying bit vector.
Examples
use bit_set::BitSet;
let mut s = BitSet::new();
s.insert(0);
let bv = s.get_ref();
assert_eq!(bv[0], true);
Truncates the underlying vector to the least length required.
Examples
use bit_set::BitSet;
let mut s = BitSet::new();
s.insert(32183231);
s.remove(32183231);
// Internal storage will probably be bigger than necessary
println!("old capacity: {}", s.capacity());
// Now should be smaller
s.shrink_to_fit();
println!("new capacity: {}", s.capacity());
Iterator over each usize stored in the BitSet
.
Examples
use bit_set::BitSet;
let s = BitSet::from_bytes(&[0b01001010]);
// Print 1, 4, 6 in arbitrary order
for x in s.iter() {
println!("{}", x);
}
Iterator over each usize stored in self
union other
.
See union_with for an efficient in-place version.
Examples
use bit_set::BitSet;
let a = BitSet::from_bytes(&[0b01101000]);
let b = BitSet::from_bytes(&[0b10100000]);
// Print 0, 1, 2, 4 in arbitrary order
for x in a.union(&b) {
println!("{}", x);
}
pub fn intersection<'a>(&'a self, other: &'a Self) -> Intersection<'a, B>ⓘNotable traits for Intersection<'a, B>impl<'a, B: BitBlock> Iterator for Intersection<'a, B> type Item = usize;
pub fn intersection<'a>(&'a self, other: &'a Self) -> Intersection<'a, B>ⓘNotable traits for Intersection<'a, B>impl<'a, B: BitBlock> Iterator for Intersection<'a, B> type Item = usize;
impl<'a, B: BitBlock> Iterator for Intersection<'a, B> type Item = usize;
Iterator over each usize stored in self
intersect other
.
See intersect_with for an efficient in-place version.
Examples
use bit_set::BitSet;
let a = BitSet::from_bytes(&[0b01101000]);
let b = BitSet::from_bytes(&[0b10100000]);
// Print 2
for x in a.intersection(&b) {
println!("{}", x);
}
pub fn difference<'a>(&'a self, other: &'a Self) -> Difference<'a, B>ⓘNotable traits for Difference<'a, B>impl<'a, B: BitBlock> Iterator for Difference<'a, B> type Item = usize;
pub fn difference<'a>(&'a self, other: &'a Self) -> Difference<'a, B>ⓘNotable traits for Difference<'a, B>impl<'a, B: BitBlock> Iterator for Difference<'a, B> type Item = usize;
impl<'a, B: BitBlock> Iterator for Difference<'a, B> type Item = usize;
Iterator over each usize stored in the self
setminus other
.
See difference_with for an efficient in-place version.
Examples
use bit_set::BitSet;
let a = BitSet::from_bytes(&[0b01101000]);
let b = BitSet::from_bytes(&[0b10100000]);
// Print 1, 4 in arbitrary order
for x in a.difference(&b) {
println!("{}", x);
}
// Note that difference is not symmetric,
// and `b - a` means something else.
// This prints 0
for x in b.difference(&a) {
println!("{}", x);
}
pub fn symmetric_difference<'a>(
&'a self,
other: &'a Self
) -> SymmetricDifference<'a, B>ⓘNotable traits for SymmetricDifference<'a, B>impl<'a, B: BitBlock> Iterator for SymmetricDifference<'a, B> type Item = usize;
pub fn symmetric_difference<'a>(
&'a self,
other: &'a Self
) -> SymmetricDifference<'a, B>ⓘNotable traits for SymmetricDifference<'a, B>impl<'a, B: BitBlock> Iterator for SymmetricDifference<'a, B> type Item = usize;
impl<'a, B: BitBlock> Iterator for SymmetricDifference<'a, B> type Item = usize;
Iterator over each usize stored in the symmetric difference of self
and other
.
See symmetric_difference_with for
an efficient in-place version.
Examples
use bit_set::BitSet;
let a = BitSet::from_bytes(&[0b01101000]);
let b = BitSet::from_bytes(&[0b10100000]);
// Print 0, 1, 4 in arbitrary order
for x in a.symmetric_difference(&b) {
println!("{}", x);
}
Unions in-place with the specified other bit vector.
Examples
use bit_set::BitSet;
let a = 0b01101000;
let b = 0b10100000;
let res = 0b11101000;
let mut a = BitSet::from_bytes(&[a]);
let b = BitSet::from_bytes(&[b]);
let res = BitSet::from_bytes(&[res]);
a.union_with(&b);
assert_eq!(a, res);
Intersects in-place with the specified other bit vector.
Examples
use bit_set::BitSet;
let a = 0b01101000;
let b = 0b10100000;
let res = 0b00100000;
let mut a = BitSet::from_bytes(&[a]);
let b = BitSet::from_bytes(&[b]);
let res = BitSet::from_bytes(&[res]);
a.intersect_with(&b);
assert_eq!(a, res);
Makes this bit vector the difference with the specified other bit vector in-place.
Examples
use bit_set::BitSet;
let a = 0b01101000;
let b = 0b10100000;
let a_b = 0b01001000; // a - b
let b_a = 0b10000000; // b - a
let mut bva = BitSet::from_bytes(&[a]);
let bvb = BitSet::from_bytes(&[b]);
let bva_b = BitSet::from_bytes(&[a_b]);
let bvb_a = BitSet::from_bytes(&[b_a]);
bva.difference_with(&bvb);
assert_eq!(bva, bva_b);
let bva = BitSet::from_bytes(&[a]);
let mut bvb = BitSet::from_bytes(&[b]);
bvb.difference_with(&bva);
assert_eq!(bvb, bvb_a);
Makes this bit vector the symmetric difference with the specified other bit vector in-place.
Examples
use bit_set::BitSet;
let a = 0b01101000;
let b = 0b10100000;
let res = 0b11001000;
let mut a = BitSet::from_bytes(&[a]);
let b = BitSet::from_bytes(&[b]);
let res = BitSet::from_bytes(&[res]);
a.symmetric_difference_with(&b);
assert_eq!(a, res);
Returns true
if this set contains the specified integer.
Returns true
if the set has no elements in common with other
.
This is equivalent to checking for an empty intersection.
Returns true
if the set is a superset of another.
Adds a value to the set. Returns true
if the value was not already
present in the set.
Trait Implementations
Extends a collection with the contents of an iterator. Read more
extend_one
)Extends a collection with exactly one element.
extend_one
)Reserves capacity in a collection for the given number of additional elements. Read more
Creates a value from an iterator. Read more
This method returns an ordering between self
and other
values if one exists. Read more
This method tests less than (for self
and other
) and is used by the <
operator. Read more
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
Auto Trait Implementations
impl<B> RefUnwindSafe for BitSet<B> where
B: RefUnwindSafe,
impl<B> UnwindSafe for BitSet<B> where
B: UnwindSafe,
Blanket Implementations
Mutably borrows from an owned value. Read more