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| -rw-r--r-- | docs/miscellaneous.rst | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/docs/miscellaneous.rst b/docs/miscellaneous.rst index c0c7cb1b..7225144a 100644 --- a/docs/miscellaneous.rst +++ b/docs/miscellaneous.rst @@ -87,10 +87,14 @@ Solidity always places new objects at the free memory pointer and memory is neve Layout of Call Data ******************* -When a Solidity contract is deployed and when it is called from an -account, the input data is assumed to be in the format in :ref:`the ABI -specification <ABI>`. The ABI specification requires arguments to be padded to multiples of 32 -bytes. The internal function calls use a different convention. +The input data for a function call is assumed to be in the format defined by the :ref:`ABI +specification <ABI>`. Among others, the ABI specification requires arguments to be padded to multiples of 32 +bytes. The internal function calls use a different convention. + +Arguments for the constructor of a contract are directly appended at the end of the +contract's code, also in ABI encoding. The constructor will access them through a hard-coded offset, and +not by using the ``codesize`` opcode, since this of course changes when appending +data to the code. .. index: variable cleanup |