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Best way to find the intersection of multiple sets?
...is translates to:
u = set.intersection(*setlist)
where *a_list is list em>x m>pansion
Note that set.intersection is not a static method, but this uses the functional notation to apply intersection of the first set with the rest of the list. So if the argument list is empty this will fail.
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How to get thread id from a thread pool?
I have a fim>x m>ed thread pool that I submit tasks to (limited to 5 threads). How can I find out which one of those 5 threads em>x m>ecutes my task (something like "thread #3 of 5 is doing this task")?
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How to send JSON instead of a query string with $.ajam>x m>?
Can someone em>x m>plain in an easy way how to make jQuery send actual JSON instead of a query string?
4 Answers
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std::string to float or double
...ouble temp = ::atof(num.c_str());
Does it for me, it is a valid C++ syntam>x m> to convert a string to a double.
You can do it with the stringstream or boost::lem>x m>ical_cast but those come with a performance penalty.
Ahaha you have a Qt project ...
QString winOpacity("0.6");
double temp = winOpacity...
“Diff” an image using ImageMagick
... between two images? I have the original image. Someone has written on an em>x m>act duplicate of the original image. Now, I need to compare the original to the written on image and em>x m>tract just the writing in image format.
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LIKE vs CONTAINS on SQL Server
...it in a valid query) should be faster, because it can use some form of indem>x m> (in this case, a full tem>x m>t indem>x m>). Of course, this form of query is only available if the column is in a full tem>x m>t indem>x m>. If it isn't, then only the first form is available.
The first query, using LIKE, will be unable to u...
How to disassemble one single function using objdump?
...simplest approach. You can even do it as a one-liner, like:
gdb -batch -em>x m> 'file /bin/ls' -em>x m> 'disassemble main'
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String.replaceAll single backslashes with double backslashes
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The String#replaceAll() interprets the argument as a regular em>x m>pression. The \ is an escape character in both String and regem>x m>. You need to double-escape it for regem>x m>:
string.replaceAll("\\\\", "\\\\\\\\");
But you don't necessarily need regem>x m> for this, simply because you want an em>x m>a...
How do I create a unique ID in Java? [duplicate]
...yone (as the entire space is larger than the number of atoms estimated to em>x m>ist in the Universe) as to be 100% guaranteed. And if you need global uniqueness, it is the easiest way to achieve that. However, if you only need local uniqueness (i.e. to a current em>x m>isting application) then AtomicIntege...
ASP.NET “special” tags
...he official name is "server-side scripting delimiters" or "ASP.NET inline em>x m>pressions". Visual Studio 2008 syntam>x m> highlighting settings dialog calls these "HTML Server-Side Script". Microsoft guys call them "code nuggets" in their blogs.
<%@ %> is a Directive for ASP.NET Web Pages. Used for ...