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| author | chriseth <chris@ethereum.org> | 2018-01-03 22:30:01 +0800 |
|---|---|---|
| committer | chriseth <chris@ethereum.org> | 2018-04-12 19:09:38 +0800 |
| commit | 344a388d4461abd7369ea44b123f5afe549dc8f7 (patch) | |
| tree | 46af2bf9ec5fa6aee5a0fafff3c01a50f79ffd51 /docs/miscellaneous.rst | |
| parent | aa715f8759934ac68b76a2bef84c460b68be636a (diff) | |
| download | dexon-solidity-344a388d4461abd7369ea44b123f5afe549dc8f7.tar.gz dexon-solidity-344a388d4461abd7369ea44b123f5afe549dc8f7.tar.zst dexon-solidity-344a388d4461abd7369ea44b123f5afe549dc8f7.zip | |
Update documentation.
Diffstat (limited to 'docs/miscellaneous.rst')
| -rw-r--r-- | docs/miscellaneous.rst | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/docs/miscellaneous.rst b/docs/miscellaneous.rst index c5178b51..8270727f 100644 --- a/docs/miscellaneous.rst +++ b/docs/miscellaneous.rst @@ -333,8 +333,9 @@ Global Variables - ``tx.origin`` (``address``): sender of the transaction (full call chain) - ``assert(bool condition)``: abort execution and revert state changes if condition is ``false`` (use for internal error) - ``require(bool condition)``: abort execution and revert state changes if condition is ``false`` (use for malformed input or error in external component) +- ``require(bool condition, string message)``: abort execution and revert state changes if condition is ``false`` (use for malformed input or error in external component). Also provide error message. - ``revert()``: abort execution and revert state changes -- ``revert(string)``: abort execution and revert state changes providing an explanatory string +- ``revert(string message)``: abort execution and revert state changes providing an explanatory string - ``blockhash(uint blockNumber) returns (bytes32)``: hash of the given block - only works for 256 most recent blocks - ``keccak256(...) returns (bytes32)``: compute the Ethereum-SHA-3 (Keccak-256) hash of the :ref:`(tightly packed) arguments <abi_packed_mode>` - ``sha3(...) returns (bytes32)``: an alias to ``keccak256`` |