Merge pull request #1180 from jgarzik/sign-compare

Fix final sign comparison warnings

1 files changed, 6 insertions, 6 deletions

diff --git a/src/main.h b/src/main.h
index c48b57b93c..965100d6d4 100644
--- a/src/main.h
+++ b/src/main.h
@@ -138,8 +138,8 @@ public:
     }
 
     IMPLEMENT_SERIALIZE( READWRITE(FLATDATA(*this)); )
-    void SetNull() { nFile = -1; nBlockPos = 0; nTxPos = 0; }
-    bool IsNull() const { return (nFile == -1); }
+    void SetNull() { nFile = (unsigned int) -1; nBlockPos = 0; nTxPos = 0; }
+    bool IsNull() const { return (nFile == (unsigned int) -1); }
 
     friend bool operator==(const CDiskTxPos& a, const CDiskTxPos& b)
     {
@@ -178,8 +178,8 @@ public:
 
     CInPoint() { SetNull(); }
     CInPoint(CTransaction* ptxIn, unsigned int nIn) { ptx = ptxIn; n = nIn; }
-    void SetNull() { ptx = NULL; n = -1; }
-    bool IsNull() const { return (ptx == NULL && n == -1); }
+    void SetNull() { ptx = NULL; n = (unsigned int) -1; }
+    bool IsNull() const { return (ptx == NULL && n == (unsigned int) -1); }
 };
 
 
@@ -194,8 +194,8 @@ public:
     COutPoint() { SetNull(); }
     COutPoint(uint256 hashIn, unsigned int nIn) { hash = hashIn; n = nIn; }
     IMPLEMENT_SERIALIZE( READWRITE(FLATDATA(*this)); )
-    void SetNull() { hash = 0; n = -1; }
-    bool IsNull() const { return (hash == 0 && n == -1); }
+    void SetNull() { hash = 0; n = (unsigned int) -1; }
+    bool IsNull() const { return (hash == 0 && n == (unsigned int) -1); }
 
     friend bool operator<(const COutPoint& a, const COutPoint& b)
     {