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Diffstat (limited to 'docs/units-and-global-variables.rst')
| -rw-r--r-- | docs/units-and-global-variables.rst | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/docs/units-and-global-variables.rst b/docs/units-and-global-variables.rst index 7d21f065..6ccc8407 100644 --- a/docs/units-and-global-variables.rst +++ b/docs/units-and-global-variables.rst @@ -70,6 +70,7 @@ Block and Transaction Properties ``msg.value`` can change for every **external** function call. This includes calls to library functions. +.. note:: If you want to implement access restrictions in library functions using ``msg.sender``, you have to manually supply the value of ``msg.sender`` as an argument. @@ -157,6 +158,9 @@ For more information, see the section on :ref:`address`. to make safe Ether transfers, always check the return value of ``send``, use ``transfer`` or even better: Use a pattern where the recipient withdraws the money. +.. note:: + The use of ``callcode`` is discouraged and will be removed in the future. + .. index:: this, selfdestruct Contract Related |