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Update block.go

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Fix bound check in block.tx(txNum int)
This commit is contained in:
Yuchuan 2019-11-29 16:36:56 +08:00 committed by John C. Vernaleo
parent 0af7fd2595
commit e3017c9aab
1 changed files with 1 additions and 1 deletions
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2
block.go
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@ -114,7 +114,7 @@ func (b *Block) Hash() *chainhash.Hash {
func (b *Block) Tx(txNum int) (*Tx, error) {
// Ensure the requested transaction is in range.
numTx := uint64(len(b.msgBlock.Transactions))
if txNum < 0 || uint64(txNum) > numTx {
if txNum < 0 || uint64(txNum) >= numTx {
str := fmt.Sprintf("transaction index %d is out of range - max %d",
txNum, numTx-1)
return nil, OutOfRangeError(str)