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author | obscuren <geffobscura@gmail.com> | 2014-02-15 06:56:09 +0800 |
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committer | obscuren <geffobscura@gmail.com> | 2014-02-15 06:56:09 +0800 |
commit | f6d1bfe45bf3709d7bad40bf563b5c09228622e3 (patch) | |
tree | df48311a5a494c66c74dcd51f1056cc699f01507 /ethutil/big.go | |
parent | c2fb9f06ad018d01ce335c82b3542de16045a32d (diff) | |
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The great merge
Diffstat (limited to 'ethutil/big.go')
-rw-r--r-- | ethutil/big.go | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/ethutil/big.go b/ethutil/big.go new file mode 100644 index 000000000..979078bef --- /dev/null +++ b/ethutil/big.go @@ -0,0 +1,37 @@ +package ethutil + +import ( + "math/big" +) + +var BigInt0 *big.Int = big.NewInt(0) + +// True +var BigTrue *big.Int = big.NewInt(1) + +// False +var BigFalse *big.Int = big.NewInt(0) + +// Returns the power of two integers +func BigPow(a, b int) *big.Int { + c := new(big.Int) + c.Exp(big.NewInt(int64(a)), big.NewInt(int64(b)), big.NewInt(0)) + + return c +} + +// Like big.NewInt(uint64); this takes a string instead. +func Big(num string) *big.Int { + n := new(big.Int) + n.SetString(num, 0) + + return n +} + +// Like big.NewInt(uint64); this takes a byte buffer instead. +func BigD(data []byte) *big.Int { + n := new(big.Int) + n.SetBytes(data) + + return n +} |