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Fix coredump on undriven vector[-1].

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Wilson Snyder
2014-04-29 21:09:44 -04:00
parent c5aabb3c6e
commit 8f4f4eb5ae
2 changed files with 35 additions and 1 deletions
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src/V3Undriven.cpp
+1 -1
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@@ -75,7 +75,7 @@ public:
private:
// METHODS
inline bool bitNumOk(int bit) const { return (bit*FLAGS_PER_BIT < (int)m_flags.size()); }
inline bool bitNumOk(int bit) const { return bit>=0 && (bit*FLAGS_PER_BIT < (int)m_flags.size()); }
inline bool usedFlag(int bit) const { return m_usedWhole || m_flags[bit*FLAGS_PER_BIT + FLAG_USED]; }
inline bool drivenFlag(int bit) const { return m_drivenWhole || m_flags[bit*FLAGS_PER_BIT + FLAG_DRIVEN]; }
enum BitNamesWhich { BN_UNUSED, BN_UNDRIVEN, BN_BOTH };