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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 convert number to words in java
...rent than the english version but french is a lot more difficult!
package com.rgagnon.howto;
import java.text.*;
class FrenchNumberToWords {
private static final String[] dizaineNames = {
"",
"",
"vingt",
"trente",
"quarante",
"cinquante",
"soixante",
"soixante",...
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
...----------------
' 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...
Set the selected index of a Dropdown using jQuery
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Objective-C ARC: strong vs retain and weak vs assign
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In fact, under ARC it is a compilation error to use assign for an object. You have to use either weak or unsafe_unretained (which is unsafe, obviously) if you don't want to retain the property.
– cobbal
Jan 19 '12...