├── BitcollarERC20.sol
└── README.md


/BitcollarERC20.sol:
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 1 | /**
 2 |  *Submitted for verification at Etherscan.io on 2019-06-16
 3 | */
 4 | 
 5 | pragma solidity ^0.4.16;
 6 | 
 7 | interface tokenRecipient { function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData) public; }
 8 | 
 9 | contract TokenERC20 {
10 |     string public name;
11 |     string public symbol;
12 |     uint8 public decimals = 18;
13 |     uint256 public totalSupply;
14 |     mapping (address => uint256) public balanceOf;
15 |     mapping (address => mapping (address => uint256)) public allowance;
16 |     event Transfer(address indexed from, address indexed to, uint256 value);
17 |     event Burn(address indexed from, uint256 value);
18 | 
19 |     
20 |     function TokenERC20(uint256 initialSupply, string tokenName, string tokenSymbol) public {
21 |         totalSupply = initialSupply * 10 ** uint256(decimals);
22 |         balanceOf[msg.sender] = totalSupply;  
23 |         name = tokenName;
24 |         symbol = tokenSymbol;
25 |     }
26 | 
27 |    
28 |     function _transfer(address _from, address _to, uint _value) internal {
29 |         require(_to != 0x0);
30 |         require(balanceOf[_from] >= _value);
31 |         require(balanceOf[_to] + _value > balanceOf[_to]);
32 | 
33 |         
34 |         uint previousBalances = balanceOf[_from] + balanceOf[_to];
35 |         balanceOf[_from] -= _value;
36 |         balanceOf[_to] += _value;
37 |         Transfer(_from, _to, _value);
38 |         assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
39 |     }
40 | 
41 |     
42 |     function transfer(address _to, uint256 _value) public {
43 |         _transfer(msg.sender, _to, _value);
44 |     }
45 | 
46 |     
47 |     function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
48 |         require(_value <= allowance[_from][msg.sender]);     // Check allowance
49 |         allowance[_from][msg.sender] -= _value;
50 |         _transfer(_from, _to, _value);
51 |         return true;
52 |     }
53 | 
54 |     
55 |     function approve(address _spender, uint256 _value) public
56 |         returns (bool success) {
57 |         allowance[msg.sender][_spender] = _value;
58 |         return true;
59 |     }
60 | 
61 |     
62 |     function approveAndCall(address _spender, uint256 _value, bytes _extraData)
63 |         public
64 |         returns (bool success) {
65 |         tokenRecipient spender = tokenRecipient(_spender);
66 |         if (approve(_spender, _value)) {
67 |             spender.receiveApproval(msg.sender, _value, this, _extraData);
68 |             return true;
69 |         }
70 |     }
71 | 
72 |     
73 |     function burn(uint256 _value) public returns (bool success) {
74 |         require(balanceOf[msg.sender] >= _value);   // Check if the sender has enough
75 |         balanceOf[msg.sender] -= _value;            // Subtract from the sender
76 |         totalSupply -= _value;                      // Updates totalSupply
77 |         Burn(msg.sender, _value);
78 |         return true;
79 |     }
80 | 
81 |     
82 |     function burnFrom(address _from, uint256 _value) public returns (bool success) {
83 |         require(balanceOf[_from] >= _value);                // Check if the targeted balance is enough
84 |         require(_value <= allowance[_from][msg.sender]);    // Check allowance
85 |         balanceOf[_from] -= _value;                         // Subtract from the targeted balance
86 |         allowance[_from][msg.sender] -= _value;             // Subtract from the sender's allowance
87 |         totalSupply -= _value;                              // Update totalSupply
88 |         Burn(_from, _value);
89 |         return true;
90 |     }
91 | }
92 | 


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/README.md:
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1 | # Tokeninformation


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