- Solidity Tutorial
- Solidity - Home
- Solidity - Overview
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- Solidity - Basic Syntax
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- Solidity - Ether Units
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- Solidity - Style Guide
- Solidity Functions
- Solidity - Functions
- Solidity - Function Modifiers
- Solidity - View Functions
- Solidity - Pure Functions
- Solidity - Fallback Function
- Function Overloading
- Mathematical Functions
- Cryptographic Functions
- Solidity Common Patterns
- Solidity - Withdrawal Pattern
- Solidity - Restricted Access
- Solidity Advanced
- Solidity - Contracts
- Solidity - Inheritance
- Solidity - Constructors
- Solidity - Abstract Contracts
- Solidity - Interfaces
- Solidity - Libraries
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- Solidity Useful Resources
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Solidity - Function Overloading
You can have multiple definitions for the same function name in the same scope. The definition of the function must differ from each other by the types and/or the number of arguments in the argument list. You cannot overload function declarations that differ only by return type.
Following example shows the concept of a function overloading in Solidity.
Example
pragma solidity ^0.5.0;
contract Test {
function getSum(uint a, uint b) public pure returns(uint){
return a + b;
}
function getSum(uint a, uint b, uint c) public pure returns(uint){
return a + b + c;
}
function callSumWithTwoArguments() public pure returns(uint){
return getSum(1,2);
}
function callSumWithThreeArguments() public pure returns(uint){
return getSum(1,2,3);
}
}
Run the above program using steps provided in Solidity First Application chapter.
Click callSumWithTwoArguments button first and then callSumWithThreeArguments button to see the result.
Output
0: uint256: 3 0: uint256: 6
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