The count() function for STL datatypes returns unsigned, even where it's

only 1/0 result like std::set. Some of the LLVM ADT already return unsigned
count(), while others still return bool count().

In continuation to r197879, this patch modifies DenseMap, DenseSet, 
ScopedHashTable, ValueMap:: count() to return size_type instead of bool,
1 instead of true and 0 instead of false.

size_type is typedef-ed locally within each class to size_t.

http://reviews.llvm.org/D4018

Reviewed by dblaikie.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211350 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 5 insertions, 4 deletions

diff --git a/include/llvm/IR/ValueMap.h b/include/llvm/IR/ValueMap.h
index 17b0fe01b1..e459e4904c 100644
--- a/include/llvm/IR/ValueMap.h
+++ b/include/llvm/IR/ValueMap.h
@@ -87,6 +87,7 @@ public:
   typedef KeyT key_type;
   typedef ValueT mapped_type;
   typedef std::pair<KeyT, ValueT> value_type;
+  typedef size_t size_type;
 
   explicit ValueMap(unsigned NumInitBuckets = 64)
     : Map(NumInitBuckets), Data() {}
@@ -103,16 +104,16 @@ public:
   inline const_iterator end() const { return const_iterator(Map.end()); }
 
   bool empty() const { return Map.empty(); }
-  unsigned size() const { return Map.size(); }
+  size_type size() const { return Map.size(); }
 
   /// Grow the map so that it has at least Size buckets. Does not shrink
   void resize(size_t Size) { Map.resize(Size); }
 
   void clear() { Map.clear(); }
 
-  /// count - Return true if the specified key is in the map.
-  bool count(const KeyT &Val) const {
-    return Map.find_as(Val) != Map.end();
+  /// Return 1 if the specified key is in the map, 0 otherwise.

+  size_type count(const KeyT &Val) const {
+    return Map.find_as(Val) == Map.end() ? 0 : 1;
   }
 
   iterator find(const KeyT &Val) {