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Posted to dev@mesos.apache.org by "Benjamin Mahler (JIRA)" <ji...@apache.org> on 2014/03/27 19:11:14 UTC
[jira] [Updated] (MESOS-1055) Add explicit to single argument
constructors
[ https://issues.apache.org/jira/browse/MESOS-1055?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Benjamin Mahler updated MESOS-1055:
-----------------------------------
Fix Version/s: (was: 0.18.0)
0.19.0
> Add explicit to single argument constructors
> --------------------------------------------
>
> Key: MESOS-1055
> URL: https://issues.apache.org/jira/browse/MESOS-1055
> Project: Mesos
> Issue Type: Improvement
> Components: c++ api
> Reporter: Dominic Hamon
> Assignee: Bernd Mathiske
> Priority: Minor
> Labels: c++, newbie
> Fix For: 0.19.0
>
>
> From the google style guide:
> Normally, if a constructor takes one argument, it can be used as a conversion. For instance, if you define Foo::Foo(string name) and then pass a string to a function that expects a Foo, the constructor will be called to convert the string into a Foo and will pass the Foo to your function for you. This can be convenient but is also a source of trouble when things get converted and new objects created without you meaning them to. Declaring a constructor explicit prevents it from being invoked implicitly as a conversion.
> Implicit conversions should be the exception to avoid unwanted and unexpected behaviour.
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