diff options
| -rw-r--r-- | docs/units-and-global-variables.rst | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/docs/units-and-global-variables.rst b/docs/units-and-global-variables.rst index aa3551bf..ee9d60d6 100644 --- a/docs/units-and-global-variables.rst +++ b/docs/units-and-global-variables.rst @@ -124,9 +124,10 @@ Address Related For more information, see the section on :ref:`address`. .. warning:: - Since it is possible for calls to ``send`` to fail, such as - if there are insufficient funds, it is good practice to - check the return value whenever calling ``send``. + There are some dangers in using ``send``: The transfer fails if the call stack depth is at 1023 + (this can always be forced by the caller) and it also fails if the recipient runs out of gas. So in order + to make safe Ether transfers, always check the return value of ``send`` or even better: + Use a pattern where the recipient withdraws the money. .. index:: this, selfdestruct |