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Why use apparently meaningless do-while and if-else statements in macros?
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#define BAR(X) do { \
int i = f(X); \
if (i > 4) g(i); \
} while (0)
You don't have to use do ... while, you could cook up something with if ... else as well, although when if ... else expands inside of an if ... else it leads to a "dangling else", which could make an existing dangling el...
AngularJS : What is a factory?
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answered May 16 '13 at 20:12
Jonathan PalumboJonathan Palumbo
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Hyphenated html attributes with asp.net mvc
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202
Use an underscore in the data attribute name, and it'll magically handle it for you, converting...
document.getElementById vs jQuery $()
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1035
Not exactly!!
document.getElementById('contents'); //returns a HTML DOM Object
var contents ...
git undo all uncommitted or unsaved changes
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1704
This will unstage all files you might have staged with git add:
git reset
This will revert a...
Can I assume (bool)true == (int)1 for any C++ compiler?
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edited Apr 27 '10 at 21:14
Joe
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ans...
What is the difference between Reader and InputStream?
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dimo414
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answered Dec 6 '10 at 14:54
Berin Lorits...
Git merge left HEAD marks in my files
...D <-+ remove the bits here
digits:[0-9]+ |
{ return digits.join(""); } |
======= <-+
sign:"-"* digits:[0-9]+
{ return sign + digits.join(""); }
>>>&...
How to sum a variable by group
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404
Using aggregate:
aggregate(x$Frequency, by=list(Category=x$Category), FUN=sum)
Category x
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How can I sharpen an image in OpenCV?
...f frame into image: (both cv::Mat)
cv::GaussianBlur(frame, image, cv::Size(0, 0), 3);
cv::addWeighted(frame, 1.5, image, -0.5, 0, image);
The parameters there are something you need to adjust for yourself.
There's also Laplacian sharpening, you should find something on that when you google.
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