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added transfer 0 clearification

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Fabian Vogelsteller 2017-06-21 08:39:20 +02:00 committed by Hudson Jameson
parent 36074618cf
commit 232013660b
1 changed files with 7 additions and 4 deletions
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EIPS/eip-token-standard.md
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@ -82,9 +82,10 @@ function balanceOf(address _owner) constant returns (uint256 balance)
#### transfer
Transfers `_value` amount of tokens to address `_to`.
The command should `throw` if the `_from` account balance has not enough tokens to spend.
Transfers `_value` amount of tokens to address `_to`, and should fire the `Transfer` event.
The function should `throw` if the `_from` account balance has not enough tokens to spend.
*Note* Transfers of 0 values should be treated as normal transfers and fire the `Transfer` event.
``` js
function transfer(address _to, uint256 _value) returns (bool success)
@ -94,11 +95,13 @@ function transfer(address _to, uint256 _value) returns (bool success)
#### transferFrom
Transfers `_value` amount of tokens from address `_from` to address `_to`.
Transfers `_value` amount of tokens from address `_from` to address `_to`, and should fire the `Transfer` event.
The `transferFrom` method is used for a withdraw workflow, allowing contracts to transfer tokens on your behalf.
This can be used for example to allow a contract to transfer tokens on your behalf and/or to charge fees in sub-currencies.
The command should `throw` unless the `_from` account has deliberately authorized the sender of the message via some mechanism.
The function should `throw` unless the `_from` account has deliberately authorized the sender of the message via some mechanism.
*Note* Transfers of 0 values should be treated as normal transfers and fire the `Transfer` event.
``` js
function transferFrom(address _from, address _to, uint256 _value) returns (bool success)