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fixes in withdraw() and msg

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ethers 2015-12-28 16:36:48 -08:00
parent 8f9f9e53e8
commit 43138aef5c
1 changed files with 8 additions and 8 deletions
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16
solidity.html.markdown
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@ -7,7 +7,7 @@ contributors:
Solidity lets you program on [Ethereum](https://www.ethereum.org/), a
blockchain-based virtual machine that allows the creation and
computation of smart contracts, without needing centralized or trusted parties.
execution of smart contracts, without needing centralized or trusted parties.
Solidity is a statically typed, contract programming language that has
similarities to Javascript and C. Like objects in OOP, each contract contains
@ -52,7 +52,7 @@ contract SimpleBank { // CamelCase
// Constructor, can receive one or many variables here; only one allowed
function AcmeBank() {
// msg provides contract messager's address and amount
// msg provides details about the message that's sent to the contract
// msg.sender is contract caller (address of contract creator)
owner = msg.sender;
}
@ -77,12 +77,12 @@ contract SimpleBank { // CamelCase
if(balances[msg.sender] >= withdrawAmount) {
balances[msg.sender] -= withdrawAmount;
if (!msg.sender.send(withdrawAmount)) {
balances[msg.sender] += withdrawAmount; // to be safe
if (!msg.sender.send(withdrawAmount)) {
balances[msg.sender] += withdrawAmount; // to be safe
}
}
return balances[msg.sender];
}
return balances[msg.sender];
}
/// @notice Get balance
@ -277,7 +277,7 @@ this.someFunction(); // calls func externally via call, not via internal jump
// ** msg - Current message received by the contract ** **
msg.sender; // address of sender
msg.value; // amount of gas provided to this contract in wei
msg.value; // amount of ether provided to this contract in wei
msg.data; // bytes, complete call data
msg.gas; // remaining gas