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-rw-r--r--src/chain.h24
1 files changed, 12 insertions, 12 deletions
diff --git a/src/chain.h b/src/chain.h
index c5304b7d6f..1223539e73 100644
--- a/src/chain.h
+++ b/src/chain.h
@@ -221,9 +221,9 @@ public:
void SetNull()
{
- phashBlock = NULL;
- pprev = NULL;
- pskip = NULL;
+ phashBlock = nullptr;
+ pprev = nullptr;
+ pskip = nullptr;
nHeight = 0;
nFile = 0;
nDataPos = 0;
@@ -437,20 +437,20 @@ private:
std::vector<CBlockIndex*> vChain;
public:
- /** Returns the index entry for the genesis block of this chain, or NULL if none. */
+ /** Returns the index entry for the genesis block of this chain, or nullptr if none. */
CBlockIndex *Genesis() const {
- return vChain.size() > 0 ? vChain[0] : NULL;
+ return vChain.size() > 0 ? vChain[0] : nullptr;
}
- /** Returns the index entry for the tip of this chain, or NULL if none. */
+ /** Returns the index entry for the tip of this chain, or nullptr if none. */
CBlockIndex *Tip() const {
- return vChain.size() > 0 ? vChain[vChain.size() - 1] : NULL;
+ return vChain.size() > 0 ? vChain[vChain.size() - 1] : nullptr;
}
- /** Returns the index entry at a particular height in this chain, or NULL if no such height exists. */
+ /** Returns the index entry at a particular height in this chain, or nullptr if no such height exists. */
CBlockIndex *operator[](int nHeight) const {
if (nHeight < 0 || nHeight >= (int)vChain.size())
- return NULL;
+ return nullptr;
return vChain[nHeight];
}
@@ -465,12 +465,12 @@ public:
return (*this)[pindex->nHeight] == pindex;
}
- /** Find the successor of a block in this chain, or NULL if the given index is not found or is the tip. */
+ /** Find the successor of a block in this chain, or nullptr if the given index is not found or is the tip. */
CBlockIndex *Next(const CBlockIndex *pindex) const {
if (Contains(pindex))
return (*this)[pindex->nHeight + 1];
else
- return NULL;
+ return nullptr;
}
/** Return the maximal height in the chain. Is equal to chain.Tip() ? chain.Tip()->nHeight : -1. */
@@ -482,7 +482,7 @@ public:
void SetTip(CBlockIndex *pindex);
/** Return a CBlockLocator that refers to a block in this chain (by default the tip). */
- CBlockLocator GetLocator(const CBlockIndex *pindex = NULL) const;
+ CBlockLocator GetLocator(const CBlockIndex *pindex = nullptr) const;
/** Find the last common block between this chain and a block index entry. */
const CBlockIndex *FindFork(const CBlockIndex *pindex) const;