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Where does gcc look for C and C++ header files?
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`gcc -print-prog-name=cc1plus` -v
This command asks gcc which C++ preprocessor it is using, and then asks that preprocessor where it looks for includes.
You will get a reliable answer for your specific setup.
Likewise, for the C preprocessor:
`gcc -print-prog-name=...
deciding among subprocess, multiprocessing, and thread in Python?
... simple, in that all the parallel "threads" of the program are independent and write their output to separate files. I don't need the threads to exchange information but it is imperative that I know when the threads finish since some steps of my pipeline depend on their output.
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DbArithmeticExpression arguments must have a numeric common type
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Arithmetic with DateTime is not supported in Entity Framework 6 and earlier. You have to use DbFunctions*. So, for the first part of your statement, something like:
var sleeps = context.Sleeps(o =>
DbFunctions.DiffHours(o.ClientDateTimeStamp, clientDateTime) < 24);
Note that ...
Do AJAX requests retain PHP Session info?
If I had a user logged onto my site, having his id stored in $_SESSION , and from his browser he clicked a 'Save' button which would make an AJAX request to the server. Will his $_SESSION and cookies be retained in this request, and can I safely rely on the id being present in the $_SESSION ?
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PHP global in functions
...T, …)
$d = Foo::bar(); // any static call, incl. Singletons and Registries
}
All of these will make your code depend on the outside. Which means, you have to know the full global state your application is in before you can reliably call any of these. The function cannot exist withou...
Detect If Browser Tab Has Focus
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Yes, window.onfocus and window.onblur should work for your scenario:
http://www.thefutureoftheweb.com/blog/detect-browser-window-focus
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Disable/turn off inherited CSS3 transitions
...tent</a>
<a href="#" class="transition">Content</a>
...and CSS:
a {
color: #f90;
-webkit-transition:color 0.8s ease-in, background-color 0.1s ease-in ;
-moz-transition:color 0.8s ease-in, background-color 0.1s ease-in;
-o-transition:color 0.8s ease-in, backgr...
Switch case with fallthrough?
... should occur before do_what_you_are_supposed_to_do(), collapsing both "2" and "3" into a single case fails to address this. I'm unsure if editing the question to make this clearer is reasonable, since it's obvious that many people have found this answer helpful.
– Tyson
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DataTrigger where value is NOT null?
I know that I can make a setter that checks to see if a value is NULL and do something. Example:
12 Answers
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Increase heap size in Java
...ou ask for 5g on a 32 bit system java will complain about an invalid value and quit.
As others have posted, use the cmd-line flags - e.g.
java -Xmx6g myprogram
You can get a full list (or a nearly full list, anyway) by typing java -X.
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