BitcoinLib v0.4.7

View Source BitcoinLib.Script.Opcodes.Stack.Dup (BitcoinLib v0.4.7)

Based on https://en.bitcoin.it/wiki/Script

Word OP_DUP Opcode 118 Hex 0x76 Input x Output x x Description Duplicates the top stack item.

Link to this section Summary

Types

t()

Functions

encode()

Returns <<0x76>>

execute(opcode, stack)

Duplicates the top stack item.

v()

Returns 0x76

Link to this section Types

Link to this type

t()

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@type t() :: BitcoinLib.Script.Opcodes.Stack.Dup

Link to this section Functions

Link to this function

encode()

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Returns <<0x76>>

examples

 Examples 

iex> BitcoinLib.Script.Opcodes.Stack.Dup.encode()
<<0x76>>
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execute(opcode, stack)

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@spec execute(t(), list()) :: {:ok, list()} | {:error, binary()}

Duplicates the top stack item.

examples

 Examples 

iex> stack = [4, 3]
...> %BitcoinLib.Script.Opcodes.Stack.Dup{}
...> |> BitcoinLib.Script.Opcodes.Stack.Dup.execute(stack)
{:ok, [4, 4, 3]}
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v()

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@spec v() :: 118

Returns 0x76

examples

 Examples 

iex> BitcoinLib.Script.Opcodes.Stack.Dup.v()
0x76