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When is TCP option SO_LINGER (0) required?
...erstand the formal meaning of the option. In some legacy code I'm handling now, the option is used. The customer complains about RST as response to FIN from its side on connection close from its side.
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Storing Data in MySQL as JSON
...these two if MySQL doesn't cut it for you. They should have grown a lot by now.
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Fastest way to replace NAs in a large data.table
...= function(dt) remove_na(dt)
f_gdata = function(dt, un = 0) gdata::NAToUnknown(dt, un)
f_dowle = function(dt) { # see EDIT later for more elegant solution
na.replace = function(v,value=0) { v[is.na(v)] = value; v }
for (i in names(dt))
eval(parse(text=paste("dt[,",i,":=na.replace(",i,"...
How can I declare and use Boolean variables in a shell script?
....
Footnotes
Miku's answer has since been edited and no longer contains (known) flaws.
Not an exhaustive list.
A valid command in this context means a command that exists. It doesn't matter if the command is used correctly or incorrectly. E.g. man woman would still be considered a valid command, ev...
What is the basic difference between the Factory and Abstract Factory Design Patterns? [closed]
...an IFruitFactory or an IJuiceFactory, without requiring your warehouse to know anything about fruits or juices.
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Is there a better way to express nested namespaces in C++ within the header
...ce, ...) VA_SELECT(NAMESPACE_END_HELPER, _Namespace, __VA_ARGS__)
Now you can do this:
NAMESPACE_BEGIN(Foo, Bar, Baz)
class X { };
NAMESPACE_END(Baz, Bar, Foo) // order doesn't matter, NAMESPACE_END(a, b, c) would work equally well
Foo::Bar::Baz::X x;
For nesting deeper than three lev...
Does a const reference class member prolong the life of a temporary?
...x(temp);
cout << sandbox.member << endl;
return 0;
}
Now temp will pass out of scope at the end of main() instead of at the end of the constructor. However, this is bad practice. Your member variable should never be a reference to a variable that exists outside of the instance....
Why java.io.File doesn't have a close() method?
...g like RandomAccessFileStream could be better, but it's many year too late now.
– maaartinus
Jan 20 '11 at 20:48
7
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Rebase a single Git commit
...the new location. I suppose rebase would have taken care of that, but by now I've pushed upstream so I can't test that. In any case, beware if you have a similar situation.
– waldyrious
Dec 18 '15 at 10:49
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How can I send an email by Java application using GMail, Yahoo, or Hotmail?
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I'd like to know more about that spam limit... I do have to send several emails, should I split them in groups? wait for a specified amount of time? Anybody knows the details of google mails limitations?
– opensas
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