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Remove carriage return in Unix
... y e \n
0000016
If for some reason dos2unix is not available to you, then sed will do it:
$ cat infile | sed 's/\r$//' | od -c
0000000 h e l l o \n g o o d b y e \n
0000016
If for some reason sed is not available to you, then ed will do it, in a complicated way:
$...
Use numpy array in shared memory for multiprocessing
...ain()
If you don't need synchronized access or you create your own locks then mp.Array() is unnecessary. You could use mp.sharedctypes.RawArray in this case.
share
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improve this answer
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How to get existing fragments when using FragmentPagerAdapter
...) is not always called. If the Fragment
// was already created then it will be retrieved from the FragmentManger
// and not here (i.e. getItem() won't be called again).
switch (position) {
case 0:
return new FragmentA();
...
An error occurred while validating. HRESULT = '8000000A'
...ve will work for almost all of them. If you are still suffering this issue then you can try to change the DWORD value for the following registry value to 0: HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\12.0_Config\MSBuild\EnableOutOfProcBuild (VS2013)
or
HKEY_CURRENT_USER\Software\Microsof...
Should we pass a shared_ptr by reference or by value?
...example: class Value {...}; using ValuePtr = std::shared_ptr<Value>; Then your function becomes simpler: void Function(const ValuePtr& v1, const ValuePtr& v2, const ValuePtr& v3) and you get maximum performance. That's why you use C++, isn't it? :)
– 4LegsDriv...
MySQL with Node.js
...devapi');
const rows = [];
mysqlx.getSession('mysqlx://localhost:33060')
.then(session => {
const table = session.getSchema('testSchema').getTable('testTable');
// The criteria is defined through the expression.
return table.update().where('name = "bar"').set('age', 50)
.exe...
How to test an Android Library Project
...uments an application project that depends on the library project. You can then add tests to the project for library-specific features.
You can set up a standard application project that depends on the library and put the instrumentation in that project. This lets you create a self-contained project...
IsNothing versus Is Nothing
...ted check.
Take the following example:
Dim i As Integer
If IsNothing(i) Then
' Do something
End If
This will compile and run fine, whereas this:
Dim i As Integer
If i Is Nothing Then
' Do something
End If
Will not compile, instead the compiler will raise the error:
'Is' operat...
Run a single migration file
...or Rails 3.2: require "./db/migrate/db/migrate/20090408054532_add_foos.rb" then AddFoos.new.up
– trisweb
Jan 11 '13 at 21:39
50
...
Does using final for variables in Java improve garbage collection?
...ive until the close of that method's scope (the last closing curly brace), then the object might stay alive for much longer that actually necessary.
If you use small methods, with only a dozen or so lines of code, then the objects declared within that method will fall out of scope more quickly, and...