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What are the basic rules and idioms for operator overloading?
...ding: If you provide +, also provide +=, if you provide -, do not omit -=, etc. Andrew Koenig is said to have been the first to observe that the compound assignment operators can be used as a base for their non-compound counterparts. That is, operator + is implemented in terms of +=, - is implemente...
Database cluster and load balancing
...ntended to guarantee validity even in the event of errors, power failures, etc. In the context of databases, a sequence of database operations that satisfies the ACID properties (and these can be perceived as a single logical operation on the data) is called a transaction. For example, a transfer of...
What is the “Execute Around” idiom?
... - transaction handling, logging, executing some code with more privileges etc. It's basically a bit like the template method pattern but without inheritance.
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Bash: infinite sleep (infinite blocking)
...mall Linux program called pause which pauses indefinitely (needs diet, gcc etc.):
printf '#include <unistd.h>\nint main(){for(;;)pause();}' > pause.c;
diet -Os cc pause.c -o pause;
strip -s pause;
ls -al pause
python
If you do not want to compile something yourself, but you have python ...
Using git repository as a database backend
... terms of normal ORMs, such as ActiveRecord, Hibernate, DataMapper, Tower, etc.
As much as I've searched for, there's zero existing free codebase for doing that approach to git from popular frameworks.
There is at least one service that somehow manages to do that efficiently — that is obviously gi...
How to get ELMAH to work with ASP.NET MVC [HandleError] attribute?
...he answer below by @IvanZlatev with regards to applicability, shortcomings etc. People are commenting that it is easier/shorter/simpler and achieves the same as your answer and as such should be marked as the correct answer. It would be good to have your perspective on this and achieve some clarity ...
Importing CSV with line breaks in Excel 2007
...s is a free-text field, which may contain line breaks, commas, quotations, etc. In order to counteract this, I have wrapped the field in double quotes (").
...
Detecting 'stealth' web-crawlers
...HTML you can use plenty of tricks with comments, CDATA elements, entities, etc:
<a href="foo<!--bar-->"> (comment should not be removed)
<script>var haha = '<a href="bot">'</script>
<script>// <!-- </script> <!--><a href="bot"> <!-->
...
LINQ OrderBy versus ThenBy
...ng projection; then use ThenBy (repeatedly) to specify secondary, tertiary etc ordering projections.
Effectively, think of it this way: OrderBy(...).ThenBy(...).ThenBy(...) allows you to build a single composite comparison for any two objects, and then sort the sequence once using that composite co...
How does a Breadth-First Search work when looking for Shortest Path?
... experience.
When the (undirected for me) graph has
fixed distance (1, 6, etc.) for edges
#1
We can use BFS to find shortest path simply by traversing it
then, if required, multiply with fixed distance (1, 6, etc.)
#2
As noted above
with BFS
the very 1st time an adjacent node is reached, it is sh...