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-rw-r--r--src/base58.h11
1 files changed, 7 insertions, 4 deletions
diff --git a/src/base58.h b/src/base58.h
index 985b0447c0..266412c861 100644
--- a/src/base58.h
+++ b/src/base58.h
@@ -173,14 +173,16 @@ protected:
~CBase58Data()
{
- memset(&vchData[0], 0, vchData.size());
+ if (!vchData.empty())
+ memset(&vchData[0], 0, vchData.size());
}
void SetData(int nVersionIn, const void* pdata, size_t nSize)
{
nVersion = nVersionIn;
vchData.resize(nSize);
- memcpy(&vchData[0], pdata, nSize);
+ if (!vchData.empty())
+ memcpy(&vchData[0], pdata, nSize);
}
void SetData(int nVersionIn, const unsigned char *pbegin, const unsigned char *pend)
@@ -201,7 +203,8 @@ public:
}
nVersion = vchTemp[0];
vchData.resize(vchTemp.size() - 1);
- memcpy(&vchData[0], &vchTemp[1], vchData.size());
+ if (!vchData.empty())
+ memcpy(&vchData[0], &vchTemp[1], vchData.size());
memset(&vchTemp[0], 0, vchTemp.size());
return true;
}
@@ -221,7 +224,7 @@ public:
int CompareTo(const CBase58Data& b58) const
{
if (nVersion < b58.nVersion) return -1;
- if (nVersion < b58.nVersion) return 1;
+ if (nVersion > b58.nVersion) return 1;
if (vchData < b58.vchData) return -1;
if (vchData > b58.vchData) return 1;
return 0;