35 lines
992 B
Solidity
35 lines
992 B
Solidity
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// Do not use this; it is only for an example in the docs
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contract MyToken {
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event Transfer(address indexed from, address indexed to, uint amount);
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mapping (address => uint256) _balances;
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constructor(uint256 totalSupply) {
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emit Transfer(address(0), msg.sender, totalSupply);
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_balances[msg.sender] = totalSupply;
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}
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// Read-Only Functions
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function balanceOf(address owner) public view returns (uint256) {
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return _balances[owner];
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}
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function decimals() public pure returns (uint8) {
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return 18;
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}
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function symbol() public pure returns (string memory) {
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return "MyToken";
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}
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// Authenticated Functions
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function transfer(address to, uint amount) public returns (bool) {
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require(_balances[msg.sender] >= amount, "insufficient token balance");
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_balances[msg.sender] -= amount;
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_balances[to] += amount;
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emit Transfer(msg.sender, to, amount);
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return true;
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}
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}
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