Gnosis compilation contracts.

1 files changed, 102 insertions, 0 deletions

diff --git a/test/compilationTests/gnosis/Tokens/StandardToken.sol b/test/compilationTests/gnosis/Tokens/StandardToken.sol
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+++ b/test/compilationTests/gnosis/Tokens/StandardToken.sol
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+pragma solidity ^0.4.11;
+import "../Tokens/Token.sol";
+import "../Utils/Math.sol";
+
+
+/// @title Standard token contract with overflow protection
+contract StandardToken is Token {
+    using Math for *;
+
+    /*
+     *  Storage
+     */
+    mapping (address => uint) balances;
+    mapping (address => mapping (address => uint)) allowances;
+    uint totalTokens;
+
+    /*
+     *  Public functions
+     */
+    /// @dev Transfers sender's tokens to a given address. Returns success
+    /// @param to Address of token receiver
+    /// @param value Number of tokens to transfer
+    /// @return Was transfer successful?
+    function transfer(address to, uint value)
+        public
+        returns (bool)
+    {
+        if (   !balances[msg.sender].safeToSub(value)
+            || !balances[to].safeToAdd(value))
+            return false;
+        balances[msg.sender] -= value;
+        balances[to] += value;
+        Transfer(msg.sender, to, value);
+        return true;
+    }
+
+    /// @dev Allows allowed third party to transfer tokens from one address to another. Returns success
+    /// @param from Address from where tokens are withdrawn
+    /// @param to Address to where tokens are sent
+    /// @param value Number of tokens to transfer
+    /// @return Was transfer successful?
+    function transferFrom(address from, address to, uint value)
+        public
+        returns (bool)
+    {
+        if (   !balances[from].safeToSub(value)
+            || !allowances[from][msg.sender].safeToSub(value)
+            || !balances[to].safeToAdd(value))
+            return false;
+        balances[from] -= value;
+        allowances[from][msg.sender] -= value;
+        balances[to] += value;
+        Transfer(from, to, value);
+        return true;
+    }
+
+    /// @dev Sets approved amount of tokens for spender. Returns success
+    /// @param spender Address of allowed account
+    /// @param value Number of approved tokens
+    /// @return Was approval successful?
+    function approve(address spender, uint value)
+        public
+        returns (bool)
+    {
+        allowances[msg.sender][spender] = value;
+        Approval(msg.sender, spender, value);
+        return true;
+    }
+
+    /// @dev Returns number of allowed tokens for given address
+    /// @param owner Address of token owner
+    /// @param spender Address of token spender
+    /// @return Remaining allowance for spender
+    function allowance(address owner, address spender)
+        public
+        constant
+        returns (uint)
+    {
+        return allowances[owner][spender];
+    }
+
+    /// @dev Returns number of tokens owned by given address
+    /// @param owner Address of token owner
+    /// @return Balance of owner
+    function balanceOf(address owner)
+        public
+        constant
+        returns (uint)
+    {
+        return balances[owner];
+    }
+
+    /// @dev Returns total supply of tokens
+    /// @return Total supply
+    function totalSupply()
+        public
+        constant
+        returns (uint)
+    {
+        return totalTokens;
+    }
+}