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| author | chriseth <chris@ethereum.org> | 2018-02-22 01:04:35 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-02-22 01:04:35 +0800 |
| commit | 20d8254029c2282ea3603433d94fe9018a4a69af (patch) | |
| tree | 6eff253684fe81228750cafb751eca2239cb7641 /docs/contracts.rst | |
| parent | 98324d6c89a87cbdc3154e3059c69a292d6ffe41 (diff) | |
| parent | 09887de266665c1233cd2aa853e8271e6af282db (diff) | |
| download | dexon-solidity-20d8254029c2282ea3603433d94fe9018a4a69af.tar.gz dexon-solidity-20d8254029c2282ea3603433d94fe9018a4a69af.tar.zst dexon-solidity-20d8254029c2282ea3603433d94fe9018a4a69af.zip | |
Merge pull request #3427 from duaraghav8/patch-3
Abstract Contracts: Add note about function type
Diffstat (limited to 'docs/contracts.rst')
| -rw-r--r-- | docs/contracts.rst | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/docs/contracts.rst b/docs/contracts.rst index afc32b16..368b7819 100644 --- a/docs/contracts.rst +++ b/docs/contracts.rst @@ -1053,6 +1053,17 @@ but they can be used as base contracts:: If a contract inherits from an abstract contract and does not implement all non-implemented functions by overriding, it will itself be abstract. +Note that a function without implementation is different from a :ref:`Function Type <function_types>` even though their syntax looks very similar. + +Example of function without implementation (a function declaration):: + + function foo(address) external returns (address); + +Example of a Function Type (a variable declaration, where the variable is of type ``function``):: + + function(address) external returns (address) foo; + + .. index:: ! contract;interface, ! interface contract ********** |