Changes in directory llvm/include/llvm/ADT:
SetVector.h updated: 1.11 -> 1.12
---
Log message:
Convert SetVector to be a true adapter class and add SmallSetVector.
---
Diffs of the changes: (+22 -5)
SetVector.h | 27 ++++++++++++++++++++++-----
1 files changed, 22 insertions(+), 5 deletions(-)
Index: llvm/include/llvm/ADT/SetVector.h
diff -u llvm/include/llvm/ADT/SetVector.h:1.11
llvm/include/llvm/ADT/SetVector.h:1.12
--- llvm/include/llvm/ADT/SetVector.h:1.11 Tue Jan 16 20:22:18 2007
+++ llvm/include/llvm/ADT/SetVector.h Sat Feb 3 17:56:03 2007
@@ -12,31 +12,35 @@
// visited later but in a deterministic order (insertion order). The interface
// is purposefully minimal.
//
+// This file defines SetVector and SmallSetVector, which performs no
allocations
+// if the SetVector has less than a certain number of elements.
+//
//===----------------------------------------------------------------------===//
#ifndef LLVM_ADT_SETVECTOR_H
#define LLVM_ADT_SETVECTOR_H
-#include <set>
+#include "llvm/ADT/SmallSet.h"
#include <vector>
#include <cassert>
#include <algorithm>
namespace llvm {
-/// This class provides a way to keep a set of things that also has the
+/// This adapter class provides a way to keep a set of things that also has the
/// property of a deterministic iteration order. The order of iteration is the
/// order of insertion.
/// @brief A vector that has set insertion semantics.
-template <typename T>
+template <typename T, typename Vector = std::vector<T>,
+ typename Set = std::set<T> >
class SetVector {
public:
typedef T value_type;
typedef T key_type;
typedef T& reference;
typedef const T& const_reference;
- typedef std::set<value_type> set_type;
- typedef std::vector<value_type> vector_type;
+ typedef Set set_type;
+ typedef Vector vector_type;
typedef typename vector_type::const_iterator iterator;
typedef typename vector_type::const_iterator const_iterator;
typedef typename vector_type::size_type size_type;
@@ -144,6 +148,19 @@
vector_type vector_; ///< The vector.
};
+/// SmallSetVector - A SetVector that performs no allocations if smaller than
+/// a certain size.
+template <typename T, unsigned N>
+class SmallSetVector : public SetVector<T, SmallVector<T, N>, SmallSet<T, N> >
{
+ SmallSetVector() {}
+
+ /// @brief Initialize a SmallSetVector with a range of elements
+ template<typename It>
+ SmallSetVector(It Start, It End) {
+ this->insert(Start, End);
+ }
+};
+
} // End llvm namespace
// vim: sw=2 ai
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