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FallbackGasFunctions.sol

// 21,030
contract Fallback {
    uint deposits = 0;
}

// Transaction: 41,143
// Execution: 20,143
contract FallbackDeposit {
    uint deposits = 0;
    function() {
        deposits++;
    }
}

// Transaction: 21,071
// Execution: 71
contract FallbackConditionalFalse {
    uint deposits = 0;
    function() {
        if(false) {
            deposits++;
        }
    }
}

// Transaction: 41,163
// Execution: 20,163
contract FallbackConditionalTrue {
    uint deposits = 0;
    function() {
        if(true) {
            deposits++;
        }
    }
}

// Transaction cost: 41226 gas. 
// Execution cost: 20226 gas
contract FallbackMultiAccount {
    mapping (address => uint) balances;
    function() {
        balances[msg.sender] += msg.value;
    }
}

// Transaction cost: 186937 gas. 
// Execution cost: 165937 gas
contract FallbackStoreStruct {
    struct Request {
        uint a;
        uint b;
        uint c;
        uint d;
        uint e;
        uint f;
        uint g;
        uint h;
    }
    uint min;
    mapping (address => uint) balances;
    mapping (address => Request) requests;
    function() {
        balances[msg.sender] += msg.value;
        
        if(balances[msg.sender] >= min) {
            requests[msg.sender] = Request(0, 1, 2, 3, 4, 5, 6, 7);
        }
    }
}

// Transaction cost: 61671 gas. 
// Execution cost: 40671 gas.
contract FallbackStoreHash {
    uint min;
    mapping (address => uint) balances;
    mapping (address => bytes16) requests;
    function() {
        balances[msg.sender] += msg.value;
        
        if(balances[msg.sender] >= min) {
            requests[msg.sender] = bytes16(12345);
        }
    }
}