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Facebook Architecture [closed]
I have been scrounging for articles/info about the architecture at Facebook, the challenges & ways they tackle them. What they use & why they use. How do they scale & what are the design decisions for what they do etc. Main underpinning being to learn. Knowing about sites which handles such massive ...
symbol(s) not found for architecture i386
When trying to compile with Xcode, I am getting the following error:
18 Answers
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Difference between an API and SDK
I am trying to explain to a non-developer the difference between an API an SDK. I need to explain why a commercial fingerprint software vendor will likely not provide an SDK, although they may certainly have used one.
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How to write to Console.Out during execution of an MSTest test
Context:
We have some users reporting issues with a file upload feature in our web application. It only happens occasionally and without any special pattern. We have been trying to figure it out for a long time, adding debug information anywhere we can think it might help, crawling the logs etc, b...
Compiling problems: cannot find crt1.o
... and that's 64bit. You need the 32bit support files. For that, you need to install them
sudo apt install gcc-multilib
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Fastest way to determine if record exists
As the title suggests... I'm trying to figure out the fastest way with the least overhead to determine if a record exists in a table or not.
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Is there an MD5 Fixed Point where md5(x) == x?
Is there a fixed point in the MD5 transformation, i.e. does there exist x such that md5(x) == x ?
7 Answers
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What's the most efficient way to erase duplicates and sort a vector?
...odd Gardner; a std::set might be a good idea here. Even if you're stuck using vectors, if you have enough duplicates, you might be better off creating a set to do the dirty work.
Let's compare three approaches:
Just using vector, sort + unique
sort( vec.begin(), vec.end() );
vec.erase( unique( v...
Is there any particular difference between intval and casting to int - `(int) X`?
Is there any particular difference between intval and (int)?
7 Answers
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Prevent user from seeing previously visited secured page after logout
...currently the end user is able to do that by the browser back button, visiting browser history or even by re-entering the URL in browser's address bar.
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