Is it possible to disable bool operator<(float,int)
Can I, in C++, disable or force an explicit cast in operator< when comparing integer and floating types? Using operator< between integer and float types can easily lead to bugs in quantitative code. I tried bool operator<(double, int) = delete; but it expects one of the types to be a class or enum. How do I make the below fail to compile with a type error?
int main()
if (3.0 < 4)
std::cout << "X" << std::endl;
else
std::cout << "Y" << std::endl;
return 0;
c++
asked Nov 13 '18 at 21:41
CarbonCarbon
1,4211926
add a comment |
Can I, in C++, disable or force an explicit cast in operator< when comparing integer and floating types? Using operator< between integer and float types can easily lead to bugs in quantitative code. I tried bool operator<(double, int) = delete; but it expects one of the types to be a class or enum. How do I make the below fail to compile with a type error?
int main()
if (3.0 < 4)
std::cout << "X" << std::endl;
else
std::cout << "Y" << std::endl;
return 0;
c++
asked Nov 13 '18 at 21:41
CarbonCarbon
1,4211926
It cannot be done natively. But you can look into various external tests.
– Mooing Duck
Nov 13 '18 at 21:43
Nuts. Do you mean taking a static analysis approach?
– Carbon
Nov 13 '18 at 21:43
I don't see the applicability of being able to do this. It's really a contract between the programmer and the compiler to not do stupid things. The end-client can't touch this.
– DeiDei
Nov 13 '18 at 21:59
In quant finance it's very common to have business users doing dev. I clean up.
– Carbon
Nov 13 '18 at 22:37
add a comment |
Can I, in C++, disable or force an explicit cast in operator< when comparing integer and floating types? Using operator< between integer and float types can easily lead to bugs in quantitative code. I tried bool operator<(double, int) = delete; but it expects one of the types to be a class or enum. How do I make the below fail to compile with a type error?
int main()
if (3.0 < 4)
std::cout << "X" << std::endl;
else
std::cout << "Y" << std::endl;
return 0;
c++
asked Nov 13 '18 at 21:41
CarbonCarbon
1,4211926
Can I, in C++, disable or force an explicit cast in operator< when comparing integer and floating types? Using operator< between integer and float types can easily lead to bugs in quantitative code. I tried bool operator<(double, int) = delete; but it expects one of the types to be a class or enum. How do I make the below fail to compile with a type error?
int main()
if (3.0 < 4)
std::cout << "X" << std::endl;
else
std::cout << "Y" << std::endl;
return 0;
c++
c++
asked Nov 13 '18 at 21:41
CarbonCarbon
1,4211926
asked Nov 13 '18 at 21:41
CarbonCarbon
1,4211926
asked Nov 13 '18 at 21:41
CarbonCarbon
1,4211926
asked Nov 13 '18 at 21:41
CarbonCarbon
1,4211926
asked Nov 13 '18 at 21:41
CarbonCarbon
1,4211926
1,4211926
It cannot be done natively. But you can look into various external tests.
– Mooing Duck
Nov 13 '18 at 21:43
Nuts. Do you mean taking a static analysis approach?
– Carbon
Nov 13 '18 at 21:43
I don't see the applicability of being able to do this. It's really a contract between the programmer and the compiler to not do stupid things. The end-client can't touch this.
– DeiDei
Nov 13 '18 at 21:59
In quant finance it's very common to have business users doing dev. I clean up.
– Carbon
Nov 13 '18 at 22:37
add a comment |
It cannot be done natively. But you can look into various external tests.
– Mooing Duck
Nov 13 '18 at 21:43
Nuts. Do you mean taking a static analysis approach?
– Carbon
Nov 13 '18 at 21:43
I don't see the applicability of being able to do this. It's really a contract between the programmer and the compiler to not do stupid things. The end-client can't touch this.
– DeiDei
Nov 13 '18 at 21:59
In quant finance it's very common to have business users doing dev. I clean up.
– Carbon
Nov 13 '18 at 22:37
It cannot be done natively. But you can look into various external tests.
– Mooing Duck
Nov 13 '18 at 21:43
It cannot be done natively. But you can look into various external tests.
– Mooing Duck
Nov 13 '18 at 21:43
Nuts. Do you mean taking a static analysis approach?
– Carbon
Nov 13 '18 at 21:43
Nuts. Do you mean taking a static analysis approach?
– Carbon
Nov 13 '18 at 21:43
I don't see the applicability of being able to do this. It's really a contract between the programmer and the compiler to not do stupid things. The end-client can't touch this.
– DeiDei
Nov 13 '18 at 21:59
I don't see the applicability of being able to do this. It's really a contract between the programmer and the compiler to not do stupid things. The end-client can't touch this.
– DeiDei
Nov 13 '18 at 21:59
In quant finance it's very common to have business users doing dev. I clean up.
– Carbon
Nov 13 '18 at 22:37
In quant finance it's very common to have business users doing dev. I clean up.
– Carbon
Nov 13 '18 at 22:37
add a comment |
1 Answer
1
active
oldest
votes
It's not possible to change the behaviour of built-in operators. You will have to detect this situation via compiler warnings or other code analysis tools.
answered Nov 13 '18 at 21:44
M.MM.M
105k11116237
add a comment |
Your Answer
StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "1"
;
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: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
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
);
);
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%2fstackoverflow.com%2fquestions%2f53289940%2fis-it-possible-to-disable-bool-operatorfloat-int%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
It's not possible to change the behaviour of built-in operators. You will have to detect this situation via compiler warnings or other code analysis tools.
answered Nov 13 '18 at 21:44
M.MM.M
105k11116237
add a comment |
It's not possible to change the behaviour of built-in operators. You will have to detect this situation via compiler warnings or other code analysis tools.
answered Nov 13 '18 at 21:44
M.MM.M
105k11116237
add a comment |
It's not possible to change the behaviour of built-in operators. You will have to detect this situation via compiler warnings or other code analysis tools.
answered Nov 13 '18 at 21:44
M.MM.M
105k11116237
It's not possible to change the behaviour of built-in operators. You will have to detect this situation via compiler warnings or other code analysis tools.
answered Nov 13 '18 at 21:44
M.MM.M
105k11116237
answered Nov 13 '18 at 21:44
M.MM.M
105k11116237
answered Nov 13 '18 at 21:44
M.MM.M
105k11116237
answered Nov 13 '18 at 21:44
M.MM.M
105k11116237
105k11116237
add a comment |
add a comment |
Thanks for contributing an answer to Stack Overflow!
- 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.
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%2fstackoverflow.com%2fquestions%2f53289940%2fis-it-possible-to-disable-bool-operatorfloat-int%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
It cannot be done natively. But you can look into various external tests.
– Mooing Duck
Nov 13 '18 at 21:43
Nuts. Do you mean taking a static analysis approach?
– Carbon
Nov 13 '18 at 21:43
I don't see the applicability of being able to do this. It's really a contract between the programmer and the compiler to not do stupid things. The end-client can't touch this.
– DeiDei
Nov 13 '18 at 21:59
In quant finance it's very common to have business users doing dev. I clean up.
– Carbon
Nov 13 '18 at 22:37