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How to create ENUM type in SQLite?
...e, Seq) VALUES ('R',2);
INSERT INTO PriceType(Type, Seq) VALUES ('H',3);
Now the enumeration values are available directly in the Price table as they would be using an ENUM: you don’t need to join to the PriceType table to get the Type values, you only need to use it if you want to determine the...
How to raise a ValueError?
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Did you know that, if you don't want to use the message, you can just raise ValueError instead of raise ValueError()?
– Tomasz Gandor
Sep 20 '19 at 15:14
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Copy constructor versus Clone()
...ow clone, thus the interface is semantically broken as your callers won't know whether the call will deep or shallow clone the object.
Instead, you should define your own IDeepCloneable (and IShallowCloneable) interfaces with DeepClone() (and ShallowClone()) methods.
You can define two interfaces,...
Script parameters in Bash
...h bar.sh $1
# cat foo2.sh
bash bar.sh "$1"
# bar.sh
echo "1-$1" "2-$2"
Now invoke:
$ bash foo.sh "a b"
1-a 2-b
$ bash foo2.sh "a b"
1-a b 2-
When you invoke foo.sh "a b" then it invokes bar.sh a b (two arguments), and with foo2.sh "a b" it invokes bar.sh "a b" (1 argument). Always have in mi...
How is TeamViewer so fast?
...m/talk/libjingle/developer_guide. They used to (and may still do, I don't know) use it for GChat, Hangouts etc.
– Jamie Edwards
Dec 17 '15 at 9:14
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dd: How to calculate optimal blocksize? [closed]
...dmittedly, it's been a while since I did that. I use a mebibyte by default now, or just let dd pick the size.)
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Why are static variables considered evil?
...n't be tested, then it IS bad design; because if I can't test it, I can't know that it works. Would you buy a car if the salesperson told you "The design of this model prevents it from being tested, so I don't know if it actually runs"? Testability is so crucial for software (as well as cars), tha...
With arrays, why is it the case that a[5] == 5[a]?
...from a, which is the same as *(a + 5), and from elementary school math we know those are equal (addition is commutative).
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How to set the maxAllowedContentLength to 500MB while running on IIS7?
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500MB = 524288000 which is now less than 4294967295
– Amr Elgarhy
Oct 26 '10 at 10:01
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Linux bash: Multiple variable assignment
...ent was about the reason why the read happens in a subshell, and I realize now I misread what you wrote. I thought you meant that the subshell was created because you used the curly braces around the compound statement. But! The reason you gave that example was to avoid forking, and but won't the su...