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How is set() implemented?
...the keys being the members of the set), with some
optimization(s) that em>x m>ploit this lack of values
So basically a set uses a hashtable as its underlying data structure. This em>x m>plains the O(1) membership checking, since looking up an item in a hashtable is an O(1) operation, on average.
If you ...
How to pass macro definition from “make” command line arguments (-D) to C source code?
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@WoodyHuang for em>x m>ample CFLAGS="-Dvar1=42 -Dvar2=314"
– ouah
Dec 5 '17 at 21:18
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How do I find all of the symlinks in a directory tree?
...fact the find man page says:
-L Follow symbolic links. When find em>x m>amines or prints information
about files, the information used shall be taken from the prop‐
erties of the file to which the link points, not from the link
itself (unless it is a broken sym...
How can I read a function's signature including default argument values?
Given a function object, how can I get its signature? For em>x m>ample, for:
8 Answers
8
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Generate a random double in a range
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To generate a random value between rangeMin and rangeMam>x m>:
Random r = new Random();
double randomValue = rangeMin + (rangeMam>x m> - rangeMin) * r.nem>x m>tDouble();
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Copying tem>x m>t to the clipboard using Java
I want to copy tem>x m>t from a JTable 's cell to the clipboard, making it available to be pasted into other programs such as Microsoft Word. I have the tem>x m>t from the JTable , but I am unsure how to copy it to the clipboard.
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Difference between -pthread and -lpthread while compiling
... pthread library as well as configure the compilation for threads.
For em>x m>ample, the following shows the macros that get defined when the -pthread option gets used on the GCC package installed on my Ubuntu machine:
$ gcc -pthread -E -dM test.c > dm.pthread.tm>x m>t
$ gcc -E -dM test.c >...
Change old commit message on Git
I was trying to edit an old commit message as em>x m>plained here .
5 Answers
5
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How can I indem>x m> a MATLAB array returned by a function without first assigning it to a local variable
For em>x m>ample, if I want to read the middle value from magic(5) , I can do so like this:
9 Answers
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Select statement to find duplicates on certain fields
... ordered by some field ID.
This SQL should get you the duplicate entries em>x m>cept for the first one. It basically selects all rows for which another row with (a) the same fields and (b) a lower ID em>x m>ists. Performance won't be great, but it might solve your problem.
SELECT A.ID, A.field1, A.field2, A...