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What is the difference between atomic and critical in OpenMP?
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The effect on g_qCount is the same, but what's done is different.
An OpenMP critical section is completely general - it can surround any arbitrary block of code. You pay for that generality, however, by incurring significant overhead every time a thread enters and exits...
How to ALTER multiple columns at once in SQL Server
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This is not possible. You will need to do this one by one.
You could:
Create a Temporary Table with your modified columns in
Copy the data across
Drop your original table (Double check before!)
Rename your Temporary Table to your original name
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Adding options to a using jQuery?
...re details.
$('#select').append($('<option>', {value:1, text:'One'}));
$('#select').append('<option value="1">One</option>');
var option = new Option(text, value); $('#select').append($(option));
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Split string, convert ToList() in one line
I have a string that has numbers
10 Answers
10
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How to replace ${} placeholders in a text file?
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You can combine those two sed commands into one: sed -e "s/\${i}/1/" -e "s/\${word}/dog/"; that is more efficient. You can run into problems with some versions of sed at maybe 100 such operations (problem from years ago - may not still be true, but beware HP-UX).
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Understanding the Event Loop
...es of stuff that needs doing and every "tick" of the event loop it selects one, removes it from the queue, and runs it.
A key thing to understand is that node relies on the OS for most of the heavy lifting. So incoming network requests are actually tracked by the OS itself and when node is ready to...
Copy file(s) from one project to another using post build event…VS2010
I have a solution with 3 projects in it. I need to copy a view from one project to another. I'm able to copy the created DLL via post build events like so:
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How do I use extern to share variables between source files?
...ntain an extern declaration of the variable.
The header is included by the one source file that defines the variable
and by all the source files that reference the variable.
For each program, one source file (and only one source file) defines the
variable.
Similarly, one header file (and only one he...
Computed / calculated / virtual / derived columns in PostgreSQL
...STORED
);
db<>fiddle here
VIRTUAL generated columns may come with one of the next iterations. (Not in Postgres 13, yet) .
Related:
Attribute notation for function call gives error
Until then, you can emulate VIRTUAL generated columns with a function using attribute notation (tbl.co...
Remove a cookie
...s at $_COOKIE["hello"], it will still find it set. I just got bit by this one.
– Magmatic
Jul 15 '13 at 14:41
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