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44 lines
1.0 KiB
44 lines
1.0 KiB
// pragma solidity ^0.4.24;
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library Lib{
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struct MyStruct{
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mapping(address => uint) maps;
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}
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function deleteSt(MyStruct[1] storage st) internal {
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delete st[0];
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}
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}
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contract Balances {
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struct BalancesStruct{
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address owner;
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mapping(address => uint) balances;
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}
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mapping(uint => BalancesStruct) public stackBalance;
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function createBalance(uint idx) public {
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require(stackBalance[idx].owner == address(0));
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BalancesStruct storage str = stackBalance[idx];
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str.owner = msg.sender;
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}
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function deleteBalance(uint idx) public {
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require(stackBalance[idx].owner == msg.sender);
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delete stackBalance[idx];
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}
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function setBalance(uint idx, address addr, uint val) public {
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require(stackBalance[idx].owner == msg.sender);
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stackBalance[idx].balances[addr] = val;
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}
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function getBalance(uint idx, address addr) public view returns(uint){
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return stackBalance[idx].balances[addr];
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}
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}
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