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Added iterator support for DenseSet.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50235 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Ted Kremenek 2008-04-24 23:48:12 +00:00
parent 1e8586d175
commit ea33c8fed6
1 changed files with 38 additions and 4 deletions
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42
include/llvm/ADT/DenseSet.h
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@ -24,15 +24,14 @@ namespace llvm {
/// should be optimized later if there is a need.
template<typename ValueT, typename ValueInfoT = DenseMapInfo<ValueT> >
class DenseSet {
DenseMap<ValueT, char, ValueInfoT> TheMap;
typedef DenseMap<ValueT, char, ValueInfoT> MapTy;
MapTy TheMap;
public:
DenseSet(const DenseSet &Other) : TheMap(Other.TheMap) {}
explicit DenseSet(unsigned NumInitBuckets = 64) : TheMap(NumInitBuckets) {}
bool empty() const { return TheMap.empty(); }
unsigned size() const { return TheMap.size(); }
// TODO add iterators.
unsigned size() const { return TheMap.size(); }
void clear() {
TheMap.clear();
@ -54,6 +53,41 @@ public:
TheMap = RHS.TheMap;
return *this;
}
// Iterators.
class Iterator {
typename MapTy::iterator I;
public:
Iterator(const typename MapTy::iterator &i) : I(i) {}
ValueT& operator*() { return I->first; }
ValueT* operator->() { return &I->first; }
Iterator& operator++() { ++I; return *this; };
bool operator==(const Iterator& X) const { return I == X.I; }
};
class ConstIterator {
typename MapTy::const_iterator I;
public:
ConstIterator(const typename MapTy::const_iterator &i) : I(i) {}
const ValueT& operator*() { return I->first; }
const ValueT* operator->() { return &I->first; }
ConstIterator& operator++() { ++I; return *this; };
bool operator==(const ConstIterator& X) const { return I == X.I; }
};
typedef Iterator iterator;
typedef ConstIterator const_iterator;
iterator begin() { return Iterator(TheMap.begin()); }
iterator end() { return Iterator(TheMap.end()); }
const_iterator begin() const { return ConstIterator(TheMap.begin()); }
const_iterator end() const { return ConstIterator(TheMap.end()); }
};
} // end namespace llvm