From: Daniel Dunbar <daniel@zuster.org>
Date: Mon, 29 Jun 2009 23:28:55 +0000 (+0000)
Subject: Add SMLoc::isValid method.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=9146d0e89c051ea7accf185d97317306c2532c27;p=oota-llvm.git

Add SMLoc::isValid method.
 - To support using SMLoc as a sentinel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74474 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/Support/SourceMgr.h b/include/llvm/Support/SourceMgr.h
index 25775cb7441..4170c8d6dc6 100644
--- a/include/llvm/Support/SourceMgr.h
+++ b/include/llvm/Support/SourceMgr.h
@@ -30,6 +30,8 @@ public:
   SMLoc() : Ptr(0) {}
   SMLoc(const SMLoc &RHS) : Ptr(RHS.Ptr) {}
   
+  bool isValid() const { return Ptr != 0; }
+
   bool operator==(const SMLoc &RHS) const { return RHS.Ptr == Ptr; }
   bool operator!=(const SMLoc &RHS) const { return RHS.Ptr != Ptr; }