Add ImmutableList::contains(). Patch by Rui Paulo!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134545 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky 2011-07-06 21:59:48 +00:00
parent d1689ae4b1
commit 298bc9a1a5

View File

@ -103,6 +103,14 @@ public:
/// isEmpty - Returns true if the list is empty.
bool isEmpty() const { return !X; }
bool contains(const T& V) const {
for (iterator I = begin(), E = end(); I != E; ++I) {
if (*I == V)
return true;
}
return false;
}
/// isEqual - Returns true if two lists are equal. Because all lists created
/// from the same ImmutableListFactory are uniqued, this has O(1) complexity
/// because it the contents of the list do not need to be compared. Note