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Preallocate space for the answer in Base58Encode.

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Benchmarks show this makes Base58Encode twice as fast.
This commit is contained in:
David Hill 2014-04-16 20:43:01 -04:00
parent e622fde7e7
commit 190c86b2bf
1 changed files with 1 additions and 1 deletions
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2
base58.go
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@ -53,7 +53,7 @@ func Base58Encode(b []byte) string {
x := new(big.Int) x := new(big.Int)
x.SetBytes(b) x.SetBytes(b)
answer := make([]byte, 0) answer := make([]byte, 0, len(b)*136/100)
for x.Cmp(bigZero) > 0 { for x.Cmp(bigZero) > 0 {
mod := new(big.Int) mod := new(big.Int)
x.DivMod(x, bigRadix, mod) x.DivMod(x, bigRadix, mod)