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how to provide a swap function for my class?
...wap'
// more code ...
}
Is the proper way to provide a swap function for your class.
namespace Foo {
class Bar{}; // dummy
void swap(Bar& lhs, Bar& rhs) {
// ...
}
}
If swap is now used as shown in 1), your function will be found. Also, you may make that function a friend if y...
Performant Entity Serialization: BSON vs MessagePack (vs JSON)
Recently I've found MessagePack , an alternative binary serialization format to Google's Protocol Buffers and JSON which also outperforms both.
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Android: upgrading DB version and adding new table
I've already created sqlite tables for my app, but now I want to add a new table to the database.
5 Answers
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Definition of a Balanced Tree
...ring if someone might be able to clarify the definition of a balanced tree for me. I have that "a tree is balanced if each sub-tree is balanced and the height of the two sub-trees differ by at most one.
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Regular expression matching a multiline block of text
...
My impression is that the target files will conform to a definite (and repeating) pattern of empty vs. non-empty lines, so it shouldn't be necessary to specify [A-Z], but it probably won't hurt, either.
– Alan Moore
Feb 25 '09 at 21:...
Better way of getting time in milliseconds in javascript?
...ate a new Date object every frame. While I am not too worried about the performance implications of this, I am having some problems with the reliability of the exact time returned by this object.
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Is there a way to cause git-reflog to show a date alongside each entry?
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@Marco it seems you would have to use a custom format: git reflog --format='%C(auto)%h %<|(17)%gd %C(blue)%ci%C(reset) %s'. I have added an alias for this: github.com/blueyed/dotfiles/commit/…
– blueyed
Nov 23 '14 at 12:13
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Why does sys.exit() not exit when called inside a thread in Python?
... method Deestan described you can call os._exit (notice the underscore). Before using it make sure that you understand that it does no cleanups (like calling __del__ or similar).
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What is an 'endpoint' in Flask?
.../greeting/<name>')
def give_greeting(name):
return 'Hello, {0}!'.format(name)
Note that the function you referred to (add_url_rule) achieves the same goal, just without using the decorator notation. Therefore, the following is the same:
# No "route" decorator here. We will add routing u...
enum.values() - is an order of returned enums deterministic
...dinal position as a serialization mechanism (ie, don't store it in the db) for this reason.
– Matt
Aug 13 '12 at 13:23
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