Simplify LiveInterval::print().

[oota-llvm.git] / include / llvm / ADT / STLExtras.h

diff --git a/include/llvm/ADT/STLExtras.h b/include/llvm/ADT/STLExtras.h
index acfeae5473166c4bc98ba06a3116cfba1438177e..58a23d886f8e9e18578385183cac4d520ee3ffcd 100644 (file)
--- a/include/llvm/ADT/STLExtras.h
+++ b/include/llvm/ADT/STLExtras.h
@@ -17,10 +17,11 @@
 #ifndef LLVM_ADT_STLEXTRAS_H
 #define LLVM_ADT_STLEXTRAS_H
 
+#include <cstddef> // for std::size_t
+#include <cstdlib> // for qsort
 #include <functional>
+#include <iterator>
 #include <utility> // for std::pair
-#include <cstring> // for std::size_t
-#include "llvm/ADT/iterator.h"
 
 namespace llvm {
 
@@ -28,6 +29,23 @@ namespace llvm {
 //     Extra additions to <functional>
 //===----------------------------------------------------------------------===//
 
+template<class Ty>
+struct identity : public std::unary_function<Ty, Ty> {
+  Ty &operator()(Ty &self) const {
+    return self;
+  }
+  const Ty &operator()(const Ty &self) const {
+    return self;
+  }
+};
+
+template<class Ty>
+struct less_ptr : public std::binary_function<Ty, Ty, bool> {
+  bool operator()(const Ty* left, const Ty* right) const {
+    return *left < *right;
+  }
+};
+
 template<class Ty>
 struct greater_ptr : public std::binary_function<Ty, Ty, bool> {
   bool operator()(const Ty* left, const Ty* right) const {
@@ -178,25 +196,21 @@ inline ItTy prior(ItTy it)
 //   // do stuff
 // else
 //   // do other stuff
-
-namespace
-{
-  template <typename T1, typename T2>
-  struct tier {
-    typedef T1 &first_type;
-    typedef T2 &second_type;
-
-    first_type first;
-    second_type second;
-
-    tier(first_type f, second_type s) : first(f), second(s) { }
-    tier& operator=(const std::pair<T1, T2>& p) {
-      first = p.first;
-      second = p.second;
-      return *this;
-    }
-  };
-}
+template <typename T1, typename T2>
+struct tier {
+  typedef T1 &first_type;
+  typedef T2 &second_type;
+
+  first_type first;
+  second_type second;
+
+  tier(first_type f, second_type s) : first(f), second(s) { }
+  tier& operator=(const std::pair<T1, T2>& p) {
+    first = p.first;
+    second = p.second;
+    return *this;
+  }
+};
 
 template <typename T1, typename T2>
 inline tier<T1, T2> tie(T1& f, T2& s) {
@@ -217,7 +231,7 @@ inline T *array_endof(T (&x)[N]) {
 
 /// Find the length of an array.
 template<class T, std::size_t N>
-inline size_t array_lengthof(T (&x)[N]) {
+inline size_t array_lengthof(T (&)[N]) {
   return N;
 }
 
@@ -231,11 +245,11 @@ static inline int array_pod_sort_comparator(const void *P1, const void *P2) {
     return 1;
   return 0;
 }
-  
+
 /// get_array_pad_sort_comparator - This is an internal helper function used to
 /// get type deduction of T right.
 template<typename T>
-static int (*get_array_pad_sort_comparator(const T &X)) 
+static int (*get_array_pad_sort_comparator(const T &))
              (const void*, const void*) {
   return array_pod_sort_comparator<T>;
 }
@@ -262,7 +276,37 @@ static inline void array_pod_sort(IteratorTy Start, IteratorTy End) {
   qsort(&*Start, End-Start, sizeof(*Start),
         get_array_pad_sort_comparator(*Start));
 }
-  
+
+template<class IteratorTy>
+static inline void array_pod_sort(IteratorTy Start, IteratorTy End,
+                                  int (*Compare)(const void*, const void*)) {
+  // Don't dereference start iterator of empty sequence.
+  if (Start == End) return;
+  qsort(&*Start, End-Start, sizeof(*Start), Compare);
+}
+
+//===----------------------------------------------------------------------===//
+//     Extra additions to <algorithm>
+//===----------------------------------------------------------------------===//
+
+/// For a container of pointers, deletes the pointers and then clears the
+/// container.
+template<typename Container>
+void DeleteContainerPointers(Container &C) {
+  for (typename Container::iterator I = C.begin(), E = C.end(); I != E; ++I)
+    delete *I;
+  C.clear();
+}
+
+/// In a container of pairs (usually a map) whose second element is a pointer,
+/// deletes the second elements and then clears the container.
+template<typename Container>
+void DeleteContainerSeconds(Container &C) {
+  for (typename Container::iterator I = C.begin(), E = C.end(); I != E; ++I)
+    delete I->second;
+  C.clear();
+}
+
 } // End llvm namespace
 
 #endif