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Hidden features of C
I know there is a standard behind all C compiler implementations, so there should be no hidden features. Despite that, I am sure all C developers have hidden/secret tricks they use all the time.
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Detect whether there is an Internet connection available on Android [duplicate]
... should to use HttpURLConnection to some host, ping some host (e.g. google.com) or try to use InetAddress.getByName(hostName).isReachable(timeOut)
– Dimon
Aug 13 '14 at 14:10
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git - skipping specific commits when merging
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If you want to merge most but not all of the commits on branch "maint" to "master", for instance, you can do this. It requires some work---- as mentioned above, the usual use case is to merge everything from a branch--- but sometimes it happens that you made a change to...
Hidden features of Scala
...g pattern matching and extractors. Whenever you define a val or var, what comes after the keyword is not simply an identifier but rather a pattern. That's why this works:
val (a, b, c) = (1, 3.14159, "Hello, world")
The right hand expression creates a Tuple3[Int, Double, String] which can match...
Is it possible to do a sparse checkout without checking out the whole repository first?
...list sub-folders to checkout
# they are checked out immediately after this command, no need to run git pull
Note that it requires git version 2.25 installed. Read more about it here: https://github.blog/2020-01-17-bring-your-monorepo-down-to-size-with-sparse-checkout/
UPDATE:
The above git clone...
Variable declaration placement in C
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It compiles successfully because GCC allows the declaration of s as a GNU extension, even though it's not part of the C89 or ANSI standard. If you want to adhere strictly to those standards, you must pass the -pedantic flag.
Th...
Key hash for Android-Facebook app
...le path. If u didn't find, then do a search in C:/ and use the Path in the command in next step.
detect your keytool.exe path and go to that dir/ in command prompt and run this command in 1 line-
$ keytool -exportcert -alias androiddebugkey -keystore "C:\Documents and Settings\Administrator.andr...
Preferred method to store PHP arrays (json_encode vs serialize)
...ve array of data in a flat file for caching purposes. I might occasionally come across the need to convert it to JSON for use in my web app but the vast majority of the time I will be using the array directly in PHP.
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How do I use vim registers?
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Registers in Vim let you run actions or commands on text stored within them. To access a register, you type "a before a command, where a is the name of a register. If you want to copy the current line into register k, you can type
"kyy
Or you can append to a r...
Tablix: Repeat header rows on each page not working - Report Builder 3.0
... this video shows how to set it exactly as the answer described: youtube.com/watch?v=WAO819-gkKw
– shrimp rice
Oct 9 '13 at 16:11
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