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doc: remove "prior to Homestead" descriptions #1214

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doc: remove "prior to Homestead" descriptions #1214

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4 changes: 1 addition & 3 deletions docs/contracts.rst
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Expand Up @@ -885,7 +885,6 @@ Libraries

Libraries are similar to contracts, but their purpose is that they are deployed
only once at a specific address and their code is reused using the ``DELEGATECALL``
(``CALLCODE`` until Homestead)
feature of the EVM. This means that if library functions are called, their code
is executed in the context of the calling contract, i.e. ``this`` points to the
calling contract, and especially the storage from the calling contract can be
Expand Down Expand Up @@ -976,8 +975,7 @@ are all compiled as calls (``DELEGATECALL``) to an external
contract/library. If you use libraries, take care that an
actual external function call is performed.
``msg.sender``, ``msg.value`` and ``this`` will retain their values
in this call, though (prior to Homestead, ``msg.sender`` and
``msg.value`` changed, though).
in this call, though.

The following example shows how to use memory types and
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Actually I think we should extend this with an explanation: "because of the use of CALLCODE and not DELEGATECALL"

internal functions in libraries in order to implement
Expand Down