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What is the canonical way to check for errors using the CUDA runtime API?
... see it is often suggested that the return status of every API call should checked for errors. The API documentation contains functions like cudaGetLastError , cudaPeekAtLastError , and cudaGetErrorString , but what is the best way to put these together to reliably catch and report errors without...
Ioc/DI - Why do I have to reference all layers/assemblies in application's entry point?
...eference EntityFramework library in my MVC3 app, only my business layer which would reference my DAL/Repo layer.
Yes, that's exactly the situation DI works so hard to avoid :)
With tightly coupled code, each library may only have a few references, but these again have other references, creating a...
Algorithm to compare two images
Given two different image files (in whatever format I choose), I need to write a program to predict the chance if one being the illegal copy of another. The author of the copy may do stuff like rotating, making negative, or adding trivial details (as well as changing the dimension of the image).
...
How to use the same C++ code for Android and iOS?
...r even four years after I write it, in this four years a lot of things has changed, so I decided to update my answer to fit better our current reality. The answer idea does not change; the implementation has changed a little. My English also has changed, it has improved a lot, so the answer is more ...
xkcd style graphs in MATLAB
....
This solution relies on two key functions: EXPORT_FIG from the file exchange to get an anti-aliased screenshot, and IMTRANSFORM to get a transformation.
%# define plot data
x = 1:0.1:10;
y1 = sin(x).*exp(-x/3) + 3;
y2 = 3*exp(-(x-7).^2/2) + 1;
%# plot
fh = figure('color','w');
hold on
plot(x,...
Class does not implement its superclass's required members
...'t want to be NSCoding compliant, this is an option. I've taken this approach with a lot of my SpriteKit code, as I know I won't be loading it from a storyboard.
Another option you can take which works rather well is to implement the method as a convenience init, like so:
convenience required in...
Where does Scala look for implicits?
...f it can't, it will complain. One can pass these parameters explicitly, which is how one uses breakOut, for example (see question about breakOut, on a day you are feeling up for a challenge).
In this case, one has to declare the need for an implicit, such as the foo method declaration:
def foo[T](...
What do linkers do?
...understand what happens "under the hood" when you convert a source file (such as a C or C++ file) into an executable file (an executable file is a file that can be executed on your machine or someone else's machine running the same machine architecture).
Under the hood, when a program is compiled,...
Concurrent vs serial queues in GCD
...cides whether the tasks are executed in order or in paralel;; (2)the dispatch type (sync or async) is only saying whether the execution goes OR doesn't go to the next instruction? I mean, if I dispatch a task SYNC the code will block until that tasks finishes, no matter what queue it's executed on?
...
C++ performance vs. Java/C#
... understanding is that C/C++ produces native code to run on a particular machine architecture. Conversely, languages like Java and C# run on top of a virtual machine which abstracts away the native architecture. Logically it would seem impossible for Java or C# to match the speed of C++ because of...