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Why should the “PIMPL” idiom be used? [duplicate]
...without a friend declaration.
Because you then don't mix responsibilities: one class implements, one class forwards.
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Is main() really start of a C++ program?
... @AdamDavis: I don't remember what my concern was. I can't think of one now.
– Lightness Races in Orbit
Dec 15 '16 at 21:37
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How can I troubleshoot my Perl CGI script?
...oes not handle line end translation, the web server may see
your script as one big line. Transfer Perl scripts in ASCII
mode.
Is the script complaining about insecure dependencies?
If your script complains about insecure dependencies, you
are probably using the -T switch to turn on taint mode, w...
Best way to select random rows PostgreSQL
...omplete table once.
For large tables this might not what you want as even one complete table scan might take to long.
A third proposal would be
select * from table where random() < 0.01 limit 1000;
This one stops the table scan as soon as 1000 rows have been found and therefore returns soone...
How to make vim paste from (and copy to) system's clipboard?
...our system's clipboard. Assuming you have the appropriate compile options, one or the other should work.
You might like to remap this to something more convenient for you. For example, you could put vnoremap <C-c> "*y in your ~/.vimrc so that you can visually select and press Ctrl+c to yank t...
Application Skeleton to support multiple screens
... Exceeds 4 inches
xlarge Exceeds 7 inches
Most phones are classified as small or normal (roughly 3 to 4 inches diagonally). But now, there are many phones with large screen such as Galaxy S4, HTC One, Xperia Z
A small tablet like the Samsung Galaxy Tab is classified as larg...
How to remove line breaks (no characters!) from the string?
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@Joeri: That last one will never get called since it would be handled by the first two. It's redundant code.
– nightfox89
Nov 2 '15 at 15:02
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Select data from date range between two dates
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As you can see, there are two ways to get things done:
enlist all acceptable options
exclude all wrong options
Obviously, second way is much more simple (only two cases against four).
Your SQL will look like:
SELECT * FROM Product_sales
WHERE NOT (From_date > @Ran...
Visual Studio “Could not copy” … during build
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i have the same issue, but after restarting VS i get one build, and the files get locked again..
– Sonic Soul
Mar 23 '14 at 19:36
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What's the point of 'const' in the Haskell Prelude?
... Ahh so it's more of a 'function generator' - I use it with one argument, and it gives me a function (taking one argument) that always returns a constant value. So map (const 42) [1..5] results in [42, 42, 42, 42, 42].
– stusmith
Sep 13 '11 at 14...