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What is “:-!!” in C code?
...e can be evaluated to be 0, and if not, to fail the build.
The macro is somewhat misnamed; it should be something more like BUILD_BUG_OR_ZERO, rather than ...ON_ZERO. (There have been occasional discussions about whether this is a confusing name.)
You should read the expression like this:
sizeof(...
Unknown column in 'field list' error on MySQL Update query
... backtick (“`”). Otherwise MySQL "thinks" that you point to a column named "y".
See also MySQL 5 Documentation
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How to make type=“number” to positive numbers only
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@Bh00shan — If you type something that is invalid, it will get picked up when the form's submit button is clicked and the user will be prompted to fix it.
– Quentin
Jul 16 at 10:46
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What is “loose coupling?” Please provide examples
...al*salesTax;
return cartTotal;
}
}
Notice how the OrderTotal method (and thus the Order class) depends on the implementation details of the CartContents and the CartEntry classes. If we were to try to change this logic to allow for discounts, we'd likely have to change all 3 classes. A...
Does setWidth(int pixels) use dip or px?
...'re wondering how to use dips instead. The answer is in TypedValue.applyDimension(). Here's an example of how to convert dips to px in code:
// Converts 14 dip into its equivalent px
Resources r = getResources();
int px = Math.round(TypedValue.applyDimension(
TypedValue.COMPLEX_UNIT_DIP, 14,r...
How do I remove/delete a virtualenv?
I created an environment with the following command: virtualenv venv --distribute
16 Answers
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See what process is using a file in Mac OS X
...en processes in activity monitor but I think it's happening to quickly for me to see it. The reason for this is I'm using a framework and I think the system version of the framework is being used instead of the debug version and I'd like to see which process is touching it.
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Options for HTML scraping? [closed]
...ther HTML scraping packages I should be looking at? Python is not a requirement, I'm actually interested in hearing about other languages as well.
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How to change Android Studio's editor font?
Right now I am using the Darcula theme. I want to change the default font to something else. I go into Editor > Colors & Fonts > Font but all the options are greyed out. For Editor Font it shows Show only monospaced fonts as checked with Primary font as Monospaced, but neither o...
Reloading/refreshing Kendo Grid
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You can use
$('#GridName').data('kendoGrid').dataSource.read(); <!-- first reload data source -->
$('#GridName').data('kendoGrid').refresh(); <!-- refresh current UI -->
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