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No == operator found while comparing structs in C++
...o about value objects. C++ provides a default operator= (even if it often does the wrong thing), for reasons of C compatibility. C compatibility doesn't require an operator==, however. Globally, I prefer what C++ does to what Java does. (I don't know C#, so maybe that's better.)
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Using LINQ to concatenate strings
...quested in the question and is not intended for everyday use. Because this does not use a StringBuilder it will have horrible performance for very long sequences. For regular code use String.Join as shown in the other answer
Use aggregate queries like this:
string[] words = { "one", "two", "three"...
Returning JSON from a PHP Script
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@KrzysztofKalinowski no, the PHP file doesn't need to be UTF-8 encoded. the output MUST be UTF-8 encoded. Those wrong statements doesn't help non-experienced users to learn how to avoid things from breaking, but it helps to grow myths on them and never learning w...
How do I prevent Eclipse from hanging on startup?
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You're my god! BTW, what does this .snap normally do?
– Michał Pękała
Jan 9 '11 at 22:17
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Set up a scheduled job?
...) to run my command at the required times.
This is a simple solution that doesn't require installing a heavy AMQP stack. However there are nice advantages to using something like Celery, mentioned in the other answers. In particular, with Celery it is nice to not have to spread your application log...
Counting null and non-null values in a single query
... @shannon I agree, COUNT(a) is a useful comment to add, but this does throw a warning/error depending on your stack and might warrant a comment in code. I would prefer the SUM method.
– Richard
Mar 29 '16 at 9:41
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Command-line svn for Windows?
... version of svn for Windows? I know I can get TortoiseSVN, but that just doesn't work for me.
10 Answers
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Compiling with g++ using multiple cores
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Why does the -j option for GNU Make needs to be 1.5 x the number of CPU cores?
– bitek
Oct 12 '12 at 7:43
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How do I create a slug in Django?
... method returns None, and I don't know of any plans to change that, but it does no harm to return what the superclass's method does in case it changes sometime in the future.
– Duncan Parkes
Aug 23 '11 at 21:16
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SQL DROP TABLE foreign key constraint
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How this answer has 28 + rating is beyond me... still doesn't work mate
– AltF4_
Jul 24 '17 at 9:32
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