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How to specify a multi-line shell variable?
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set -e exits the shell if a command has an "unanticipated" non-zero exit status. By "unanticipated", I mean it runs in a context where you aren't specifically looking at its exit status. false by itself, for instance, would exit the shell. false || true wou...
Proper practice for subclassing UIView?
I'm working on some custom UIView-based input controls, and I'm trying to ascertain proper practice for setting up the view. When working with a UIViewController, it's fairly simple to use the loadView and related viewWill , viewDid methods, but when subclassing a UIView, the closest methosds I...
Making an iframe responsive
...ing this stackoverflow post titled "Can you make an iFrame responsive?", and one of the comments/answers led me to this jfiddle.
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Rails respond_with: how does it work?
I've been reading here and there about how cool the respond_with method is in Rails 3. But I can't even find a reference to it in either the Rails APIs or by searching the source. Can anyone either explain to me how it works (what options you can use, etc) or point me to the place it's actually im...
Netbeans: how to change @author
...e its value? If possible, I would like to change it by using Netbeans menu and not by editing some config files :) I'm using Netbeans 7.2
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How to copy an object in Objective-C
...copy a custom object that has objects of its own. I've been reading around and am a bit confused as to how to inherit NSCopying and how to use NSCopyObject.
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Should I add .vcxproj.filter files to source control?
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Previous versions of Visual Studio (at least versions 6.0 and 2008) store that information in their own project file (.dsp and .vcproj files respectively), which of course is good to add to SCC.
I cannot think of any reason to not include this .filter files in SCC
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UIButton remove all target-actions
...Target:action:forControlEvents:, pass nil for the target, NULL for action, and use a control mask that sets all bits (UIControlEventAllEvents).
Objective-C
[someControl removeTarget:nil
action:NULL
forControlEvents:UIControlEventAllEvents];
Swift 2
button.removeTarget(...
Html.Textbox VS Html.TextboxFor
What is the difference between Html.Textbox and Html.TextboxFor?
4 Answers
4
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Is volatile expensive?
...LoadLoad or a LoadStore barrier. Further down the page I see that LoadLoad and LoadStore are effectively no-ops on X86 CPUs. Does this mean that volatile read operations can be done without a explicit cache invalidation on x86, and is as fast as a normal variable read (disregarding the reordering co...