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Best way to check if object exists in Entity Framework?
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hi. how can we check if it exists and after that select all its data?
– virtouso
Apr 7 '15 at 1:27
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Is optimisation level -O3 dangerous in g++?
...n undefined behavior, due to relying more strictly on the rules, and especially corner cases, of the language(s).
As a personal note, I am running production software in the financial sector for many years now with -O3 and have not yet encountered a bug that would not have been there if I would hav...
Why extend the Android Application class?
... are many uses of extending application class. One very useful is to catch all uncaught exceptions in you application. SO this is something which can be very handy
– png
Jun 18 '14 at 9:56
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Android Studio vs Eclipse + ADT Plugin? [closed]
...ut AFAIK, there is still no support for HTML/CSS/JS (which is helpful with all these hybrid frameworks these days).
For the sake of keeping this answer short, I have opted to remove all previous (and outdated) statements, instead of just striking them. Feel free to browse the edit-history if you'...
How to kill a child process after a given timeout in Bash?
I have a bash script that launches a child process that crashes (actually, hangs) from time to time and with no apparent reason (closed source, so there isn't much I can do about it). As a result, I would like to be able to launch this process for a given amount of time, and kill it if it did not re...
Why does integer overflow on x86 with GCC cause an infinite loop?
...efined behavior, it means it. Anything can happen. "Anything" includes "usually integers wrap around, but on occasion weird stuff happens".
Yes, on x86 CPUs, integers usually wrap the way you expect. This is one of those exceptions. The compiler assumes you won't cause undefined behavior, and optim...
What does threadsafe mean?
... safe" and so I ended up writing a delegate (sample from MSDN helped) and calling it instead.
11 Answers
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Parsing JSON with Unix tools
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There are a number of tools specifically designed for the purpose of manipulating JSON from the command line, and will be a lot easier and more reliable than doing it with Awk, such as jq:
curl -s 'https://api.github.com/users/lambda' | jq -r '.name'
You can...
What is an SDL renderer?
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SDL_Window
SDL_Window is the struct that holds all info about the Window itself: size, position, full screen, borders etc.
SDL_Renderer
SDL_Renderer is a struct that handles all rendering. It is tied to a SDL_Window so it can only render within that SDL_Window. It als...
Are loops really faster in reverse?
I've heard this quite a few times. Are JavaScript loops really faster when counting backward? If so, why? I've seen a few test suite examples showing that reversed loops are quicker, but I can't find any explanation as to why!
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