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openzeppelin-contracts-upgradeable
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俞永鹏
openzeppelin-contracts-upgradeable
Commits
e7933fce
Commit
e7933fce
authored
Aug 11, 2016
by
Manuel Araoz
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fix token style
parent
83acbbbb
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1 changed file
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9 additions
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2 deletions
+9
-2
Token.sol
contracts/Token.sol
+9
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contracts/Token.sol
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e7933fce
...
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@@ -4,8 +4,8 @@
// Everything throws instead of returning false on failure.
import 'ERC20.sol';
contract Token is ERC20
{
contract Token is ERC20
{
mapping( address => uint ) _balances;
mapping( address => mapping( address => uint ) ) _approvals;
uint _supply;
...
...
@@ -14,12 +14,15 @@ contract Token is ERC20
_balances[msg.sender] = initial_balance;
_supply = initial_balance;
}
function totalSupply() constant returns (uint supply) {
return _supply;
}
function balanceOf( address who ) constant returns (uint value) {
return _balances[who];
}
function transfer( address to, uint value) returns (bool ok) {
if( _balances[msg.sender] < value ) {
throw;
...
...
@@ -32,6 +35,7 @@ contract Token is ERC20
Transfer( msg.sender, to, value );
return true;
}
function transferFrom( address from, address to, uint value) returns (bool ok) {
// if you don't have enough balance, throw
if( _balances[from] < value ) {
...
...
@@ -51,14 +55,17 @@ contract Token is ERC20
Transfer( from, to, value );
return true;
}
function approve(address spender, uint value) returns (bool ok) {
_approvals[msg.sender][spender] = value;
Approval( msg.sender, spender, value );
return true;
}
function allowance(address owner, address spender) constant returns (uint _allowance) {
return _approvals[owner][spender];
}
function safeToAdd(uint a, uint b) internal returns (bool) {
return (a + b >= a);
}
...
...
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