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What is a memory fence?
...nly found in device drivers than application code.
The CPU reordering is different from compiler optimisations - although the artefacts can be similar. You need to take separate measures to stop the compiler reordering your instructions if that may cause undesirable behaviour (e.g. use of the volat...
What good are SQL Server schemas?
...a SQL 2000 guy and I've always been confused by schemas in 2005+. Yes, I know the basic definition of a schema, but what are they really used for in a typical SQL Server deployment?
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How to set target hosts in Fabric file
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Or if the task is always run on the same role, you can use the @roles() decorator on the task.
– Tom
Aug 14 '12 at 18:19
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Get the (last part of) current directory name in C#
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You're looking for Path.GetFileName.
Note that this won't work if the path ends in a \.
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How Big can a Python List Get?
...answered May 12 '09 at 23:48
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Filter dataframe rows if value in column is in a set list of values [duplicate]
... string
... '600141' ...
... '600329' ...
... ... ...
Suppose now we have a list of strings which we want the values in 'STK_ID' to end with, e.g.
endstrings = ['01$', '02$', '05$']
We can join these strings with the regex 'or' character | and pass the string to str.contains to filte...
Disable a Button
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The boolean value for NO in Swift is false.
button.isEnabled = false
should do it.
Here is the Swift documentation for UIControl's isEnabled property.
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How to make vim paste from (and copy to) system's clipboard?
...stem's clipboard (:help registers). Depending on your system, they may do different things. For instance, on systems that don't use X11 like OSX or Windows, the "* register is used to read and write to the system clipboard. On X11 systems both registers can be used. See :help x11-selection for more ...
libpng warning: iCCP: known incorrect sRGB profile
...CCP chunk from the PNG image.
Some applications treat warnings as errors; if you are using such an application you do have to remove the chunk. You can do that with any of a variety of PNG editors such as ImageMagick's
convert in.png out.png
To remove the invalid iCCP chunk from all of the PNG ...
Converting pixels to dp
...tan is saying: this is dangerous and you shouldn't be using it, especially now when device form factors are becoming so complex.
– Saket
Aug 5 '19 at 17:50
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