Unused variables warning in address.call return tuple (bool, bytes memory)
2
I have the following code fragment.
function forward(address destination, bytes memory data) public {
(bool res, bytes memory retData) = destination.call(data);
assert(res);
}
Since retData is not used, I am getting the following warning (compiled with solidity 0.5.0):
Compilation warnings encountered:
/Users/ivica/Documents/deka/hekate.reloaded/digits-node/contracts/IdentityProxy.sol:55:20:
Warning: Unused local variable.
(bool res, bytes memory retData) = destination.call(data);
^------------------^
Question: how to get rid of it?
solidity
asked Dec 25 '18 at 6:52
ivicaaivicaa
5,4681938
add a comment |
2
I have the following code fragment.
function forward(address destination, bytes memory data) public {
(bool res, bytes memory retData) = destination.call(data);
assert(res);
}
Since retData is not used, I am getting the following warning (compiled with solidity 0.5.0):
Compilation warnings encountered:
/Users/ivica/Documents/deka/hekate.reloaded/digits-node/contracts/IdentityProxy.sol:55:20:
Warning: Unused local variable.
(bool res, bytes memory retData) = destination.call(data);
^------------------^
Question: how to get rid of it?
solidity
asked Dec 25 '18 at 6:52
ivicaaivicaa
5,4681938
add a comment |
2
2
2
I have the following code fragment.
function forward(address destination, bytes memory data) public {
(bool res, bytes memory retData) = destination.call(data);
assert(res);
}
Since retData is not used, I am getting the following warning (compiled with solidity 0.5.0):
Compilation warnings encountered:
/Users/ivica/Documents/deka/hekate.reloaded/digits-node/contracts/IdentityProxy.sol:55:20:
Warning: Unused local variable.
(bool res, bytes memory retData) = destination.call(data);
^------------------^
Question: how to get rid of it?
solidity
asked Dec 25 '18 at 6:52
ivicaaivicaa
5,4681938
I have the following code fragment.
function forward(address destination, bytes memory data) public {
(bool res, bytes memory retData) = destination.call(data);
assert(res);
}
Since retData is not used, I am getting the following warning (compiled with solidity 0.5.0):
Compilation warnings encountered:
/Users/ivica/Documents/deka/hekate.reloaded/digits-node/contracts/IdentityProxy.sol:55:20:
Warning: Unused local variable.
(bool res, bytes memory retData) = destination.call(data);
^------------------^
Question: how to get rid of it?
solidity
solidity
asked Dec 25 '18 at 6:52
ivicaaivicaa
5,4681938
asked Dec 25 '18 at 6:52
ivicaaivicaa
5,4681938
asked Dec 25 '18 at 6:52
ivicaaivicaa
5,4681938
asked Dec 25 '18 at 6:52
ivicaaivicaa
5,4681938
asked Dec 25 '18 at 6:52
ivicaaivicaa
5,4681938
5,4681938
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
2
Does this work for you?
pragma solidity ^0.5.2;
contract Test {
function forward(address destination, bytes memory data) public {
(bool res, ) = destination.call(data);
assert(res);
}
}
Basically we are omitting the second assignment.
answered Dec 25 '18 at 6:56
Shawn TabriziShawn Tabrizi
5,1322522
add a comment |
Your Answer
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "642"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fethereum.stackexchange.com%2fquestions%2f64567%2funused-variables-warning-in-address-call-return-tuple-bool-bytes-memory%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
2
Does this work for you?
pragma solidity ^0.5.2;
contract Test {
function forward(address destination, bytes memory data) public {
(bool res, ) = destination.call(data);
assert(res);
}
}
Basically we are omitting the second assignment.
answered Dec 25 '18 at 6:56
Shawn TabriziShawn Tabrizi
5,1322522
add a comment |
2
Does this work for you?
pragma solidity ^0.5.2;
contract Test {
function forward(address destination, bytes memory data) public {
(bool res, ) = destination.call(data);
assert(res);
}
}
Basically we are omitting the second assignment.
answered Dec 25 '18 at 6:56
Shawn TabriziShawn Tabrizi
5,1322522
add a comment |
2
2
2
Does this work for you?
pragma solidity ^0.5.2;
contract Test {
function forward(address destination, bytes memory data) public {
(bool res, ) = destination.call(data);
assert(res);
}
}
Basically we are omitting the second assignment.
answered Dec 25 '18 at 6:56
Shawn TabriziShawn Tabrizi
5,1322522
Does this work for you?
pragma solidity ^0.5.2;
contract Test {
function forward(address destination, bytes memory data) public {
(bool res, ) = destination.call(data);
assert(res);
}
}
Basically we are omitting the second assignment.
answered Dec 25 '18 at 6:56
Shawn TabriziShawn Tabrizi
5,1322522
answered Dec 25 '18 at 6:56
Shawn TabriziShawn Tabrizi
5,1322522
answered Dec 25 '18 at 6:56
Shawn TabriziShawn Tabrizi
5,1322522
answered Dec 25 '18 at 6:56
Shawn TabriziShawn Tabrizi
5,1322522
5,1322522
add a comment |
add a comment |
draft saved
draft discarded
Thanks for contributing an answer to Ethereum Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fethereum.stackexchange.com%2fquestions%2f64567%2funused-variables-warning-in-address-call-return-tuple-bool-bytes-memory%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
