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What are the barriers to understanding pointers and what can be done to overcome them? [closed]
...use address on it, and the memory block it references as the actual house. All sorts of operations can thus be easily explained.
I've added some Delphi code down below, and some comments where appropriate. I chose Delphi since my other main programming language, C#, does not exhibit things like mem...
What does Expression.Quote() do that Expression.Constant() can’t already do?
...sure induced, if you do this you'll get a "variable 's' of type 'System.Int32' is not defined" exception on the invocation.
(Aside: I've just reviewed the code generator for delegate creation from quoted expression trees, and unfortunately a comment that I put into the code back in 2006 is still ...
How to get UITableView from UITableViewCell?
...ld appear that this has changed once again in iOS 8 and this takes care of all versions nicely.
– djskinner
Oct 12 '14 at 19:22
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How do I replace the *first instance* of a string in .NET?
...EDIT: As @itsmatt mentioned, there's also Regex.Replace(String, String, Int32), which can do the same, but is probably more expensive at runtime, since it's utilizing a full featured parser where my method does one find and three string concatenations.
EDIT2: If this is a common task, you might wan...
Android - Spacing between CheckBox and text
...ecessarily. Android's open source. A device vendor could substitute a totally different graphic with a totally different size. They love doing stuff like that for some reason.
– DougW
May 20 '11 at 19:17
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Database Design for Tagging
...ever, I'm not convinced it's a good idea to implement bitmap indexing "manually", like digiguru suggests: It sounds like a complicated situation whenever new tags are added(?) But some DBMSes (including Oracle) offer bitmap indexes which may somehow be of use, because a built-in indexing system does...
Function pointers, Closures, and Lambda
...s, "Hey, this is kinda like a closure." I knew this assumption is fundamentally wrong somehow and after a search online I didn't find really any analysis of this comparison.
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Difference between a User and a Login in SQL Server
...e recently been running into many different areas of SQL Server that I normally don't mess with. One of them that has me confused is the area of Logins and Users. Seems like it should be a pretty simple topic...
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Tricky Google interview question
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This is a really nice implementation, using a minimum of memory. It is linear memory even if you want only one number though.
– Thomas Ahle
Feb 23 '12 at 0:10
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#ifdef vs #if - which is better/safer as a method for enabling/disabling compilation of particular s
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My initial reaction was #ifdef, of course, but I think #if actually has some significant advantages for this - here's why:
First, you can use DEBUG_ENABLED in preprocessor and compiled tests. Example - Often, I want longer timeouts when debug is enabled, so using #if, I can write this
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