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When vectors are allocated, do they use memory on the heap or the stack?
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@flyrain: vectors clean up after themselves. Read up on RAII.
– Fred Foo
Sep 25 '13 at 12:08
1
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How to resize an image with OpenCV2.0 and Python2.6
...scipy.misc.imresize(image, 0.5)
There are obviously more options you can read in the documentation of those functions (cv2.resize, scipy.misc.imresize).
Update:
According to the SciPy documentation:
imresize is deprecated in SciPy 1.0.0, and
will be removed in 1.2.0. Use skimage.transform...
log4j vs logback [closed]
...f Log4j 2.0: http://www.grobmeier.de/the-new-log4j-2-0-05122012.html
When reading you will see that Log4j 2 was inspired by Logback but also by other logging frameworks. But the code base is different; it shares almost nothing with Log4j 1 and zero with Logback. This lead to some improvements like ...
Detecting when the 'back' button is pressed on a navbar
... are being popped")
}
}
That works fine. So what is causing the widespread myth that it doesn’t?
The problem seems to be due to an incorrect implementation of a different method, namely that the implementation of willMove(toParent:) forgot to call super.
If you implement willMove(toParent:) w...
NSObject +load and +initialize - What do they do?
...lize to all of a class's superclasses first (if the superclasses haven't already been sent initialize).
Example:
@interface Superclass : NSObject
@end
@interface Subclass : Superclass
@end
@implementation Superclass
+ (void)initialize {
NSLog(@"in Superclass initialize; self = %@", self);
}...
Difference between method and function in Scala
I read Scala Functions (part of Another tour of Scala ). In that post he stated:
9 Answers
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What is the use of Enumerable.Zip extension method in Linq?
... + words[i]
);
This is useful when you have data spread into simple, array-like lists, each with the same length and order, and each describing a different property of the same set of objects. Zip helps you knit those pieces of data together into a more coherent structure.
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Why is @autoreleasepool still needed with ARC?
...ahead and run a collect cycle now. Maybe you know there's a ton of objects ready to be cleared out, you have a loop that allocates a bunch of temp objects, so you "know" (or Instruments might tell you :) that adding a release pool around the loop would be a good idea.
– Graham ...
Unnamed/anonymous namespaces vs. static functions
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The C++ Standard reads in section 7.3.1.1 Unnamed namespaces, paragraph 2:
The use of the static keyword is
deprecated when declaring objects in a
namespace scope, the unnamed-namespace
provides a superior alternative.
Static ...
Is System.nanoTime() completely useless?
...ced timebase, so that shouldn't be an issue.
So, if Holmes's link can be read as implying that nanoTime calls clock_gettime(CLOCK_REALTIME), then it's safe-ish as of kernel 2.6.18 on x86, and always on PowerPC (because IBM and Motorola, unlike Intel, actually know how to design microprocessors).
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