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authorobscuren <geffobscura@gmail.com>2014-02-28 19:21:12 +0800
committerobscuren <geffobscura@gmail.com>2014-02-28 19:21:12 +0800
commit839bd73fbb525f6c51e4205ce6519b6154cda2f0 (patch)
tree8bbb80d53425cfdb0391798eea77ff3af09ffe78 /ethutil/big.go
parent30ee32a7254658878b35c6a89e463427f99bd1b4 (diff)
parent3f7ec1a83fe13dc934d92a405ff01b0be6c04ac0 (diff)
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Merge branch 'release/0.3.0'
Diffstat (limited to 'ethutil/big.go')
-rw-r--r--ethutil/big.go15
1 files changed, 15 insertions, 0 deletions
diff --git a/ethutil/big.go b/ethutil/big.go
index 979078bef..1a3902fa3 100644
--- a/ethutil/big.go
+++ b/ethutil/big.go
@@ -35,3 +35,18 @@ func BigD(data []byte) *big.Int {
return n
}
+
+func BigToBytes(num *big.Int, base int) []byte {
+ ret := make([]byte, base/8)
+
+ return append(ret[:len(ret)-len(num.Bytes())], num.Bytes()...)
+}
+
+// Functions like the build in "copy" function
+// but works on big integers
+func BigCopy(src *big.Int) (ret *big.Int) {
+ ret = new(big.Int)
+ ret.Add(ret, src)
+
+ return
+}