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Is there any advantage of using map over unordered_map in case of trivial keys?
...) is serialized. Allocating (small) blocks in large quantities in a multithreaded application is very expensive.
– ROAR
Feb 4 '10 at 3:06
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Overloading Macro on Number of Arguments
...mp; Roland Illig here: https://groups.google.com/group/comp.std.c/browse_thread/thread/77ee8c8f92e4a3fb/346fc464319b1ee5?pli=1
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Ruby class instance variable vs. class variable
I read " When do Ruby instance variables get set? " but I'm of two minds when to use class instance variables.
7 Answers
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“Insufficient Storage Available” even there is lot of free space in device memory
...t part is:
The OS knows how much memory it needs to run the apps you already have. This is a perfect example.
Now you may be able to "fool" the OS by force closing some apps that
are sitting in RAM. This will increase your "bucket" of memory which
may let you install an app, but remembe...
Knight's Shortest Path on Chessboard
...ust know
common algorithms including Dijkstra's.
A good starting point is reading
Introduction to Algorithms ISBN 0-262-03384-4.
Or you could try wikipedia, http://en.wikipedia.org/wiki/List_of_algorithms
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Can I add jars to maven 2 build classpath without installing them?
... | | - ${artifactId}-${version}.jar
To elaborate more on this you can read this blog post.
Use Maven to install to project repo
Instead of creating this structure by hand I recommend to use a Maven plugin to install your jars as artifacts. So, to install an artifact to an in-project repository ...
How to work with complex numbers in C?
...aginary is cimag(a). carg(a) is for complex argument.
To directly access (read/write) real an imag part you may use this unportable GCC-extension:
__real__ a = 1.4;
__imag__ a = 2.0;
float b = __real__ a;
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HTTP vs HTTPS performance
...major differences in performance between http and https? I seem to recall reading that HTTPS can be a fifth as fast as HTTP. Is this valid with the current generation webservers/browsers? If so, are there any whitepapers to support it?
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What are 'get' and 'set' in Swift?
I'm learning Swift and I'm reading The Swift Programming Language from Apple, I have no Objective C background (only PHP, JS, and other but no Obj C)
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When would you use a WeakHashMap or a WeakReference?
...at the cache should
always contain a reference to any
image which is already in memory. With
ordinary strong references, though,
that reference itself will force the
image to remain in memory, which
requires you to somehow determine when
the image is no longer needed in
memory and re...