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Is the practice of returning a C++ reference variable evil?
...nt() {
int* i = new int;
return *i; // DON'T DO THIS.
}
Because now the client has to eventually do the strange:
int& myInt = getInt(); // note the &, we cannot lose this reference!
delete &myInt; // must delete...totally weird and evil
int oops = getInt();
delete ...
Handling InterruptedException in Java
...t an InterruptedException is a perfectly valid result of the method call.
Now, if the method you're calling throws such exception, what should your method do? You can figure out the answer by thinking about the following:
Does it make sense for the method you are implementing to throw an Interrupt...
Why doesn't Dijkstra's algorithm work for negative weight edges?
...int on positive numbers - the above assumption is not true.
Since we do "know" each vertex which was "closed" is minimal - we can safely do the relaxation step - without "looking back". If we do need to "look back" - Bellman-Ford offers a recursive-like (DP) solution of doing so.
...
How to extract base URL from a string in JavaScript?
...ocol = pathArray[0]; host = pathArray[2]; url = protocol + '://' + host; //now url === "http:://stackoverflow.com" checkout ::
– user405398
Sep 6 '13 at 3:44
...
HtmlString vs. MvcHtmlString
...s a compatibility shim added to MVC 2 to support both .NET 3.5 and .NET 4. Now that MVC 3 is .NET 4 only, it's a fairly trivial subclass of HtmlString presumably for MVC 2->3 for source compatibility.
If you're ever going to drop back to MVC 2 it might make sense to use IHtmlString or var for va...
Detecting WPF Validation Errors
...The posted code did not work for me when using a ListBox. I rewrote it and now it works:
public static bool IsValid(DependencyObject parent)
{
if (Validation.GetHasError(parent))
return false;
// Validate all the bindings on the children
for (int i = 0; i != VisualTreeHelper.Ge...
Use JavaScript to place cursor at end of text in text input element
...
Works in Chrome now (9.0.597.98)
– Matt
Feb 28 '11 at 10:05
6
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Size-limited queue that holds last N elements in Java
...
Thanks! Looks that's the most viable alternative for now :)
– GreyCat
Apr 18 '11 at 20:52
3
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Class JavaLaunchHelper is implemented in both … libinstrument.dylib. One of the two will be used. Wh
...
As of October 2017, this issue is now resolved in
jdk1.9
jdk1.8.152
jdk1.7.161
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Error when trying to obtain a certificate: The specified item could not be found in the keychain
...
It seems like OS X now defaults to the first item being selected now. If you just choose a different keychain (i.e System) when you generate this it should fix the issue.
– James Parker
Jan 20 '16 at 14:25...