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Using generic std::function objects with member functions in one class
For one class I want to store some function pointers to member functions of the same class in one map storing std::function objects. But I fail right at the beginning with this code:
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What do all of Scala's symbolic operators mean?
...
I divide the operators, for the purpose of teaching, into four categories:
Keywords/reserved symbols
Automatically imported methods
Common methods
Syntactic sugars/composition
It is fortunate, then, that most categories are represented in the question:
-> // Automati...
Do while loop in SQL Server 2008
...p-with-continue-and-break-keywords/
Example of WHILE Loop
DECLARE @intFlag INT
SET @intFlag = 1
WHILE (@intFlag <=5)
BEGIN
PRINT @intFlag
SET @intFlag = @intFlag + 1
END
GO
ResultSet:
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2
3
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5
Example of WHILE Loop with BREAK keyword
DECLARE @intFlag INT
SET @intFlag =...
Asynchronously wait for Task to complete with timeout
...
How about this:
int timeout = 1000;
var task = SomeOperationAsync();
if (await Task.WhenAny(task, Task.Delay(timeout)) == task) {
// task completed within timeout
} else {
// timeout logic
}
And here's a great blog post "Crafting ...
Performance optimization strategies of last resort [closed]
...tors of floats. Changing the code to carry around the extra empty slot and converting the calculation to floating point from fixed point allowed for a slightly less-accurate but much faster result.
– RBerteig
May 30 '09 at 2:19
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Arguments or parameters? [duplicate]
... how the terms 'arguments' and 'parameters' are used. They seem to be used interchangeably in the programming world.
12 Ans...
Android: How to bind spinner to custom object list?
In the user interface there has to be a spinner which contains some names (the names are visible) and each name has its own ID (the IDs are not equal to display sequence). When the user selects the name from the list the variable currentID has to be changed.
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What is the Simplest Way to Reverse an ArrayList?
...;
aList.add("4");
aList.add("5");
Collections.reverse(aList);
System.out.println("After Reverse Order, ArrayList Contains : " + aList);
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What is the difference between localStorage, sessionStorage, session and cookies?
...ocalStorage only allow you to store strings - it is possible to implicitly convert primitive values when setting (these will need to be converted back to use them as their type after reading) but not Objects or Arrays (it is possible to JSON serialise them to store them using the APIs). Session stor...
Inheriting constructors
...pports C++11 standard, there is a constructor inheritance using using (pun intended). For more see Wikipedia C++11 article. You write:
class A
{
public:
explicit A(int x) {}
};
class B: public A
{
using A::A;
};
This is all or nothing - you cannot inherit only some constructors...