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Are members of a C++ struct initialized to 0 by default?
...hot s; // receives no initialization
Snapshot s = {}; // value initializes all members
The second will make all members zero, the first leaves them at unspecified values. Note that it is recursive:
struct Parent { Snapshot s; };
Parent p; // receives no initialization
Parent p = {}; // value init...
resizes wrong; appears to have unremovable `min-width: min-content`
...scribed below is fixed as of Firefox 53 and the link to this answer has finally been removed from Bootstrap's documentation.
Also, my sincere apologies to the Mozilla contributors who had to block removing support for -moz-document partly due to this answer.
The fix
In WebKit and Firefox 53+, you...
Is having an 'OR' in an INNER JOIN condition a bad idea?
...is not smart enough to see it in the query you wrote (though they are logically equivalent).
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How can I set the Secure flag on an ASP.NET Session Cookie?
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There are two ways, one httpCookies element in web.config allows you to turn on requireSSL which only transmit all cookies including session in SSL only and also inside forms authentication, but if you turn on SSL on httpcookies you must also turn it on inside forms configuration to...
Easy way to test a URL for 404 in PHP?
...hat sometimes the URL's that I feed into my code return 404, which gums up all the rest of my code.
15 Answers
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Is it possible to include a file in your .gitconfig
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actually you don't need ~. this is because your .gitconfig-file still has to reside in ~/.gitconfig a relative path in the config would imply ~...
– robustus
Jul 18 '12 at 15:58
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Check if a table exists in Rails
...? 'kittens'
In Rails 2, 3 & 4 the API is about tables.
# Listing of all tables and views
ActiveRecord::Base.connection.tables
# Checks for existence of kittens table/view (Kitten model)
ActiveRecord::Base.connection.table_exists? 'kittens'
Getting the status of migrations:
# Tells you all...
How do I clone a subdirectory only of a Git repository?
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EDIT: As of Git 2.19, this is finally possible, as can be seen in this answer.
Consider upvoting that answer.
Note: in Git 2.19, only client-side support is implemented, server-side support is still missing, so it only works when cloning local repositories...
How can I get a list of build targets in Ant?
... the available built targets without having to search through the file manually. Does ant have a command for this - something like ant show-targets - that will make it list all the targets in the build file?
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Is there a CSS not equals selector?
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In CSS3, you can use the :not() filter, but not all browsers fully support CSS3 yet, so be sure you know what you're doing which is now
supported by all major browsers (and has been for quite some time; this is an old answer...).
Example:
<input type="text" value="wi...