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Why can't I make a vector of references?
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Indeed, this is the "actual" reason. The error about T* being impossible of T is U& is just a side-effect of the violated requirement that T must be assignable. If vector was able to precisely check the type parameter, then it would probably say "violated requirement: T...
How can I remove specific rules from iptables?
...6 and 8007 respectively. I use iptables to "activate" the server; i.e. to route the incoming HTTP and HTTPS ports:
6 Answer...
“Inspect” a hover element?
...Not sure if it was present in previous browser revisions, but I just found out this extremely simple method.
Open the inspector in chrome or Firefox, right click on the element you are interested in, and select the appropriate option (in this case: hover).
This will trigger the associated CSS.
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The most efficient way to implement an integer based power function pow(int, int)
... freely downloadable here: gist.github.com/3551590 On my machine it was about 2.5x faster.
– orlp
Aug 31 '12 at 11:18
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How to find third or nth maximum salary from salary table?
...va the subquery is evaluated each and every time a row is processed by the outer query. In other words, the inner query can not be processed independently of the outer query since the inner query uses the Emp1 value as well.
– Kumar Manish
Mar 11 '15 at 3:30
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Difference between python3 and python3m executables
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Credit for this goes to chepner for pointing out that I already had the link to the solution.
Python implementations MAY include additional flags in the file name
tag as appropriate. For example, on POSIX systems these flags will
also contribute to the file name:
--wit...
Testing two JSON objects for equality ignoring child order in Java
...se against letting dependencies on a particular serialization format bleed out beyond your storage/networking layer; thus, I'd first recommend that you consider testing equality between your own application objects rather than their JSON manifestations.
Having said that, I'm currently a big fan of ...
The key must be an application-specific resource id
...other answers, but with a twist. First of all, the id, as has been pointed out by others, can NOT be a constant defined in your code (such as private static final int MYID = 123) or any other int that you define as a field somewhere.
The id has to be a precompiled unique id, just like the ones you ...
Split by comma and strip whitespace in Python
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Why is ^\s+ necessary? I've tested your code without it and it doesn't work, but I don't know why.
– laike9m
Apr 21 '15 at 9:33
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Listen for key press in .NET console app
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Can you explain a little about the approach you had i am trying to do the same with my console application.An explanation for the code would be great.
– nayef harb
Apr 29 '15 at 8:07
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