Object/Archive: Give Child a operator < for map.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144757 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 8 insertions, 0 deletions

diff --git a/include/llvm/Object/Archive.h b/include/llvm/Object/Archive.h
index b12b17e1f5..9e1369a5c6 100644
--- a/include/llvm/Object/Archive.h
+++ b/include/llvm/Object/Archive.h
@@ -34,6 +34,10 @@ public:
       return (Parent == other.Parent) && (Data.begin() == other.Data.begin());
     }
 
+    bool operator <(const Child &other) const {
+      return Data.begin() < other.Data.begin();
+    }
+
     Child getNext() const;
     error_code getName(StringRef &Result) const;
     int getLastModified() const;
@@ -64,6 +68,10 @@ public:
       return !(*this == other);
     }
 
+    bool operator <(const child_iterator &other) const {
+      return child < other.child;
+    }
+
     child_iterator& operator++() {  // Preincrement
       child = child.getNext();
       return *this;