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Is it possible to declare two variables of different types in a for loop?
Is it possible to declare two variables of different types in the initialization body of a for loop in C++?
8 Answers
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Permanently Set Postgresql Schema Path
I need to set schema path in Postgres so that I don't every time specify schema dot table e.g. schema2.table .
Set schema path:
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“find: paths must precede expression:” How do I specify a recursive search that also finds files in
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By way of example, you can see what's happening if you do echo *test.c ... the result won't be echo expanding the wildcard, but the shell itself. The simple lesson is if you're using wildcards, quote the filespec :-)
– Chris J
Jun 27 ...
How do I tar a directory of files and folders without including the directory itself?
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@Ivan if you replace . with * so the command will be cd my_directory/ && tar -zcvf ../my_dir.tgz * && cd .. then it will work as you expected.
– Anonymous
Mar 3 '15 at 2:47
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How to write log to file
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os.Open() must have worked differently in the past, but this works for me:
f, err := os.OpenFile("testlogfile", os.O_RDWR | os.O_CREATE | os.O_APPEND, 0666)
if err != nil {
log.Fatalf("error opening file: %v", err)
}
defer f.Close()
log.SetOutput(...
How to fix “Attempted relative import in non-package” even with __init__.py
...e fact that you need __init__.pys all the way down, and the __package__-modifying trickery (described below by BrenBarn) needed to allow these imports for executable scripts (e.g. when using a shebang and doing ./my_script.py at the Unix shell) would all be useful. This whole issue was quite tricky ...
What is the difference between an int and a long in C++?
Correct me if I am wrong,
9 Answers
9
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Where does Xcode 4 store Scheme Data?
...uld be stored in a file in the xcodeproj directory somewhere, but for the life of me I can't find which one.
1 Answer
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Hash function that produces short hashes?
...mospunk: encoding with base64 does nothing for collision resistance, since if hash(a) collides with hash(b) then base64(hash(a)) also collides with base64(hash(b)).
– Greg Hewgill
Nov 12 '13 at 18:37
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IBOutlet and IBAction
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IBAction resolves to void and IBOutlet resolves to nothing, but they signify to Xcode and Interface builder that these variables and methods can be used in Interface builder to link UI elements to your code.
If you're not going to be using Interface Builder at all, then you don't need them in you...