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List of Delphi language features and version in which they were introduced/deprecated
... bit AnsiChar/AnsiString support in enable on Linux.
C++Builder and Delphi now use the same ABI for all calls.
Delphi 10.2 Tokyo
Support for Linux server apps (Intel 64-bit using LLVM and ARC).
Assigning a dynamic arrays to a pointer using the @ operator is only allowed when hard-casting the a...
Re-sign IPA (iPhone)
...is built into the binary, so you can only resign using the same app ID. I know I was not able to resign with a different app ID.
– Michael Baltaks
Dec 5 '11 at 21:12
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Computational complexity of Fibonacci Sequence
I understand Big-O notation, but I don't know how to calculate it for many functions. In particular, I've been trying to figure out the computational complexity of the naive version of the Fibonacci sequence:
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Git push failed, “Non-fast forward updates were rejected”
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This command worked me, however I'd like to know, why this doesn't: git pull? The remote is equal to origin, so it actually runs: git pull origin. Shouldn't it update all the branches?
– Karlen Kishmiryan
Apr 15 '15 at 13:35
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Regular expression for floating point numbers
...tion.)
That said, most regex engines (actually, all of them, as far as I know) would accept \.. Most likely, there's an issue with escaping.
The Trouble with Escaping
Some languages have built-in support for regexes, such as JavaScript. For those languages that don't, escaping can be a problem.
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Swift: Convert enum value to String?
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Not sure in which Swift version this feature was added, but right now (Swift 2.1) you only need this code:
enum Audience : String {
case public
case friends
case private
}
let audience = Audience.public.rawValue // "public"
When strings are used for raw values, the implic...
How to copy Docker images from one host to another without using a repository
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I used the image id instead of the name:tag Now I'm sitting here, loaded the image and have a <none> for REPOSITORY and TAG. What is the right way to bring the name and tag back? @wisbucky
– Ulfhetnar
Jan 10 '18 at 7:37
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How to avoid mysql 'Deadlock found when trying to get lock; try restarting transaction'
...each connection will wait for the other to release the key -> deadlock.
Now, if you changed your queries such that the connections would lock the keys at the same order, ie:
connection 1: locks key(1), locks key(2);
connection 2: locks key(1), locks key(2);
it will be impossible to get a deadlo...
Format timedelta to string
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As you know, you can get the total_seconds from a timedelta object by accessing the .seconds attribute.
Python provides the builtin function divmod() which allows for:
s = 13420
hours, remainder = divmod(s, 3600)
minutes, seconds =...
How do I install from a local cache with pip?
... downloaded and added to the PIP_DOWNLOAD_CACHE directory. For instance, I now have quite a few Django packages.
This doesn't remove the need for network access, as stated in the pip news, so it's not the answer for creating new virtualenvs on the airplane, but it's still great.
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