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| author | Yoichi Hirai <i@yoichihirai.com> | 2017-03-04 01:25:50 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-03-04 01:25:50 +0800 |
| commit | cfbbd89dafca57e450f6b4433eb258e6a7f52310 (patch) | |
| tree | 52a31928bfbe1c32ada53ec1008438a931cb2c98 /docs/control-structures.rst | |
| parent | 6bfd894f46d12f78e2ea49a58f96763a077bcf49 (diff) | |
| parent | 4b1e8111cc2469808d08e1718d3edd64b2cc4484 (diff) | |
| download | dexon-solidity-cfbbd89dafca57e450f6b4433eb258e6a7f52310.tar.gz dexon-solidity-cfbbd89dafca57e450f6b4433eb258e6a7f52310.tar.zst dexon-solidity-cfbbd89dafca57e450f6b4433eb258e6a7f52310.zip | |
Merge pull request #1702 from ethereum/assertError
Change effect of assert to invalid opcode.
Diffstat (limited to 'docs/control-structures.rst')
| -rw-r--r-- | docs/control-structures.rst | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/docs/control-structures.rst b/docs/control-structures.rst index ebc45965..83d3eac9 100644 --- a/docs/control-structures.rst +++ b/docs/control-structures.rst @@ -399,10 +399,9 @@ Currently, Solidity automatically generates a runtime exception in the following While a user-provided exception is generated in the following situations: #. Calling ``throw``. -#. The condition of ``assert(condition)`` is not met. Internally, Solidity performs a revert operation (instruction ``0xfd``) when a user-provided exception is thrown. In contrast, it performs an invalid operation (instruction ``0xfe``) if a runtime exception is encountered. In both cases, this causes the EVM to revert all changes made to the state. The reason for this is that there is no safe way to continue execution, because an expected effect did not occur. Because we want to retain the atomicity of transactions, the safest thing to do is to revert all changes and make the whole transaction -(or at least call) without effect.
\ No newline at end of file +(or at least call) without effect. |