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How dangerous is it to compare floating point values?
...aluated in higher precision than their nominal types. This means that when one of the above types of rounding happens, you'll get two rounding steps, first a rounding of the result to the higher-precision type, then a rounding to the final type. As an example, consider what happens in decimal if you...
Should you always favor xrange() over range()?
..., it appears to be the best. There are instances - going back to the questioner's question - seldom but existent, where range would be better. Perhaps not as seldom as I am thinking, but I certainly use xrange 95% of the time.
– dylnmc
Nov 12 '14 at 0:39
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SQL : BETWEEN vs =
... otherwise guaranteed that your datetime values will never have a time component. Being consistent about this will make it less likely that you'll use BETWEEN by mistake instead of >= and <, and either get some data in the query that you didn't mean to, or think that you were getting an addit...
Add alternating row color to SQL Server Reporting services report
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I always make sure to upvote someone who answers their own question. Too often, the asker finds an answer on their own and then never comes back to post it, leaving the rest of us who might have the same question in the dark. A bump for you, sir.
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How do I get the first element from an IEnumerable in .net?
...)) {
if (enumer.MoveNext()) e = enumer.Current;
}
Joel Coehoorn mentioned .Single() in the comments; this will also work, if you are expecting your enumerable to contain exactly one element - however it will throw an exception if it is either empty or larger than one element. There is a corres...
Could someone explain the pros of deleting (or keeping) unused code?
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Here are some reasons why unused code should be removed:
For anyone new working on a project, they not only have to understand
the working code, they have to understand unused material also. This
is wasted time and creates confusion.
There is a danger that at sometime someone will make ...
Member '' cannot be accessed with an instance reference
...es are shared between all instances of their class, so that they only have one value. The way it's defined now, there is no point in making any instances of your MyItem class.
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Why no love for SQL? [closed]
...procedures and the like. Doing so you will probably find that you're using one of the worst languages you've ever seen - because it was never designed to be used as an imperative language.
SQL is very old. SQL has been standardized, but too late, many vendors already developed their language extens...
Is it better in C++ to pass by value or pass by constant reference?
...s, function objects, etc...) or expensive to copy. In that paper, there is one other rule. The idea is that sometimes one wants to make a copy (in case the argument can't be modified), and sometimes one doesn't want (in case one wants to use the argument itself in the function if the argument was a ...
Visual Studio C# statement collapsing
... question), I often long for the ability to collapse statement blocks like one can collapse function blocks. That is to say, it would be great if the minus icon appeared on the code outline for everything enclosed in braces. It seems to appear for functions, classes, regions, namespaces, usings, b...