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Which, if any, C++ compilers do tail-recursion optimization?
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All current mainstream compilers perform tail call optimisation fairly well (and have done for more than a decade), even for mutually recursive calls such as:
int bar(int, int);
int foo(int n, int acc) {
return (n == 0) ? acc : bar(n - 1, acc...
conditional unique constraint
...you'll return false if Status = 1 and Count > 0.
http://msdn.microsoft.com/en-us/library/ms188258.aspx
CREATE TABLE CheckConstraint
(
Id TINYINT,
Name VARCHAR(50),
RecordStatus TINYINT
)
GO
CREATE FUNCTION CheckActiveCount(
@Id INT
) RETURNS INT AS BEGIN
DECLARE @ret INT;
SELECT @...
How to clear an ImageView in Android?
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Internal vs. Private Access Modifiers
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You cannot declare a top level class as private. The compiler will stop you.
– TheGateKeeper
Apr 12 '12 at 9:12
6
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Android: Go back to previous activity
... them much though. Have a look at the flags here: http://developer.android.com/reference/android/content/Intent.html
As mentioned in the comments, if the activity is opened with startActivity() then one can close it with finish().
If you wish to use the Up button you can catch that in onOptionsSel...
How to get a complete list of object's methods and attributes?
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For the complete list of attributes, the short answer is: no. The problem is that the attributes are actually defined as the arguments accepted by the getattr built-in function. As the user can reimplement __getattr__, suddenly allow...
Change the Target Framework for all my projects in a Visual Studio Solution
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' Copyright (C) 2007-2008 Scott Dorman (sj_dorman@hotmail.com)
'
' This library is free software; you can redistribute it and/or
' modify it under the terms of the Microsoft Public License (Ms-PL).
'
' This library is distributed in the hope that it will be useful,
' but WITHOUT ANY...
Simple logical operators in Bash
...side them isn't an expression like in many other languages. It's a list of commands (just like outside parentheses). These commands are executed in a separate subprocess, so any redirection, assignment, etc. performed inside the parentheses has no effect outside the parentheses.
With a leading dol...
Difference between Lookup() and Dictionary(Of list())
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JavaScript OOP in NodeJS: how?
...is seems quite simple, I also found Details_of_the_Object_Model where they compare JS with Java. Still, to inherit they simply do: Mouse.prototype = new Animal().. how does it compare with your example? (e.g. what is Object.create()?)
– fusio
Aug 12 '13 at 14:0...