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How to set environment variables in Jenkins?
...ajorVersion" | python -c 'import sys,re,os; print("VERSION_NUMBER="+re.findall(r"[\d+\.]+", sys.stdin.read())[0]+os.environ["BUILD_NUMBER"])'
– kenny_k
Jun 19 '15 at 6:52
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makefile:4: *** missing separator. Stop
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make has a very stupid relationship with tabs. All actions of every rule are identified by tabs. And, no, four spaces don't make a tab. Only a tab makes a tab.
To check, I use the command cat -e -t -v makefile_name.
It shows the presence of tabs with ^I and line endings ...
StringBuilder vs String concatenation in toString() in Java
...o builder?
At the point where you're concatenating in a loop - that's usually when the compiler can't substitute StringBuilder by itself.
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How to find out which processes are using swap space in Linux?
...to htop
because I don't know a reliable way to get this information (actually,
I don't think it's possible to get an exact number, because of shared
pages).
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Modern way to filter STL container?
...and if it returns true it copies the value to bar.
The std::back_inserter allows us to actually insert new elements at the end of bar (using push_back()) with an iterator without having to resize it to the required size first.
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How can I access an internal class from an external assembly?
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answered May 28 '09 at 13:32
Marc Gravell♦Marc Gravell
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How to extract the year from a Python datetime object?
...se).
One key thing to note is that the time components can differ between 32-bit and 64-bit pythons in some python versions (2.5.x tree I think). So you will find things like hour/min/sec on some 64-bit platforms, while you get hour/minute/second on 32-bit.
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Do I really have a car in my garage? [duplicate]
...List<Vehicle> v = new ArrayList<>(); // init with sum
v.addAll(cars);
v.addAll(boats);
return v;
}
// all vehicles method
public getAveragePriceAfterYears(int years) {
List<Vehicle> vehicules = getVehicles();
int s = 0;
for(Vehicle v : vehicules) {
/...
Oracle: how to UPSERT (update or insert into a table?)
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@chotchki: really? An explanation would be helpful.
– Tony Andrews
Sep 29 '11 at 8:51
15
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Explaining Python's '__enter__' and '__exit__'
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Using these magic methods (__enter__, __exit__) allows you to implement objects which can be used easily with the with statement.
The idea is that it makes it easy to build code which needs some 'cleandown' code executed (think of it as a try-finally block). Some more ex...