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Added peek(n)

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obscuren 2014-02-20 23:10:16 +01:00
parent 059ad35215
commit 504d356232
1 changed files with 16 additions and 0 deletions
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16
ethchain/stack.go
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@ -159,6 +159,22 @@ func (st *Stack) Popn() (*big.Int, *big.Int) {
return ints[0], ints[1]
}
func (st *Stack) Peek() *big.Int {
s := len(st.data)
str := st.data[s-1]
return str
}
func (st *Stack) Peekn() (*big.Int, *big.Int) {
s := len(st.data)
ints := st.data[s-2:]
return ints[0], ints[1]
}
func (st *Stack) Push(d *big.Int) {
st.data = append(st.data, d)
}