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How to implement the --verbose or -v option into a script?
... is already a function (or if you're willing to use print as a function in 2.x using from __future__ import print_function) it's even simpler:
verboseprint = print if verbose else lambda *a, **k: None
This way, the function is defined as a do-nothing if verbose mode is off (using a lambda), inste...
How to list running screen sessions?
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429
To list all of the screen sessions for a user, run the following command as that user:
screen ...
Filtering DataGridView without changing datasource
I'm developing user control in C# Visual Studio 2010 - a kind of "quick find" textbox for filtering datagridview. It should work for 3 types of datagridview datasources: DataTable, DataBinding and DataSet.
My problem is with filtering DataTable from DataSet object, which is displayed on DataGridView...
Header files for x86 SIMD intrinsics
...tions you haven't enabled at compile time (e.g. with -march=native or -mavx2 -mbmi2 -mpopcnt -mfma -mcx16 -mtune=znver1 or whatever.)
MSVC and ICC will let you use intrinsics without enabling anything at compile time, but you still should enable AVX before using AVX intrinsics.
Historically (bef...
A field initializer cannot reference the nonstatic field, method, or property
...ere are more details about this compiler error on MSDN - Compiler Error CS0236.
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Is there a way to iterate over a dictionary?
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326
Yes, NSDictionary supports fast enumeration. With Objective-C 2.0, you can do this:
// To prin...
Real world use cases of bitwise operators [closed]
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MySql server startup error 'The server quit without updating PID file '
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