diff options
Diffstat (limited to 'docs/control-structures.rst')
| -rw-r--r-- | docs/control-structures.rst | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/docs/control-structures.rst b/docs/control-structures.rst index a3af41dd..a2d34274 100644 --- a/docs/control-structures.rst +++ b/docs/control-structures.rst @@ -113,8 +113,8 @@ actual contract has not been created yet. Functions of other contracts have to be called externally. For an external call, all function arguments have to be copied to memory. -When calling functions -of other contracts, the amount of Wei sent with the call and the gas can be specified:: +When calling functions of other contracts, the amount of Wei sent with the call and +the gas can be specified with special options ``.value()`` and ``.gas()``, respectively:: contract InfoFeed { function info() payable returns (uint ret) { return 42; } @@ -127,8 +127,8 @@ of other contracts, the amount of Wei sent with the call and the gas can be spec function callFeed() { feed.info.value(10).gas(800)(); } } -The modifier ``payable`` has to be used for ``info``, because otherwise, -we would not be able to send Ether to it in the call ``feed.info.value(10).gas(800)()``. +The modifier ``payable`` has to be used for ``info``, because otherwise, the `.value()` +option would not be available. Note that the expression ``InfoFeed(addr)`` performs an explicit type conversion stating that "we know that the type of the contract at the given address is ``InfoFeed``" and @@ -235,7 +235,7 @@ creation-dependencies are not possible. } } -As seen in the example, it is possible to forward Ether to the creation, +As seen in the example, it is possible to forward Ether to the creation using the ``.value()`` option, but it is not possible to limit the amount of gas. If the creation fails (due to out-of-stack, not enough balance or other problems), an exception is thrown. |