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Add SMLoc::isValid method.

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- To support using SMLoc as a sentinel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74474 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar 2009-06-29 23:28:55 +00:00
parent 0faea04e8f
commit 9146d0e89c
1 changed files with 2 additions and 0 deletions
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2
include/llvm/Support/SourceMgr.h
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@ -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; }