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How to properly check if std::function is empty in C++11?
I was wondering how to properly check if an std::function is empty. Consider this example:
3 Answers
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'await' works, but calling task.Result hangs/deadlocks
...e, your SynchronizationContext is the one used by NUnit to execute async void test methods. I would try using async Task test methods instead.
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The term 'Get-ADUser' is not recognized as the name of a cmdlet
... Blindly installing wildcard search results seems like a terrible idea.....
– Marie
Jun 19 '19 at 20:22
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Include another HTML file in a HTML file
... });
</script>
</head>
<body>
<div id="includedContent"></div>
</body>
</html>
b.html:
<p>This is my include file</p>
This method is a simple and clean solution to my problem.
The jQuery .load() documentation is here.
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Erasing elements from a vector
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Use the remove/erase idiom:
std::vector<int>& vec = myNumbers; // use shorter name
vec.erase(std::remove(vec.begin(), vec.end(), number_in), vec.end());
What happens is that remove compacts the elements that differ from the value to ...
How to prevent ReflectionTypeLoadException when calling Assembly.GetTypes()
...pe> GetLoadableTypes(this Assembly assembly)
{
// TODO: Argument validation
try
{
return assembly.GetTypes();
}
catch (ReflectionTypeLoadException e)
{
return e.Types.Where(t => t != null);
}
}
You may well wish to move the return statement out of ...
Does PowerShell support constants?
...g()]
param(
[Parameter(Mandatory=$true, Position=0)]
[string][ValidateNotNullOrEmpty()]$Name,
[Parameter(Mandatory=$true, Position=1)]
[char][ValidateSet("=")]$Link,
[Parameter(Mandatory=$true, Position=2)]
[object][ValidateNotNullOrEmpty()]$Mean,
[Parameter(Mandator...
How to convert a java.util.List to a Scala list
...re unnecessary. I think they made this answer more complicated, so I consolidated them and made the answer more simple. @jijeshvu07 If you disagree, I would be happy to undo the edit and submit this change instead as its own answer.
– Cory Klein
Jan 21 '15 at 1...
Check if a Postgres JSON array contains a string
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how to get the rows where food array inside json is non empty , for example if we can consider , their are JSON , where food array also empty ,can you help
– Bravo
Sep 14 '17 at 23:54
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Simplest way to do a recursive self-join?
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(
SELECT *
FROM mytable
WHERE ParentID IS NULL -- this condition defines the ultimate ancestors in your chain, change it as appropriate
UNION ALL
SELECT m.*
FROM mytable m
JOIN q
ON m.parentID = q.PersonID
...