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Effect of a Bitwise Operator on a Boolean in Java
The bitwise operators are supposed to travel variables and operate on them bit by bit. In the case of integers, longs, chars this makes sense. These variables can contain the full range of values enforced by their size.
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Extract substring using regexp in plain bash
I'm trying to extract the time from a string using bash, and I'm having a hard time figuring it out.
4 Answers
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Grepping a huge file (80GB) any way to speed it up?
This has been running for an hour on a fairly powerful linux server which is otherwise not overloaded.
Any alternative to grep? Anything about my syntax that can be improved, (egrep,fgrep better?)
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.NET 4.0 build issues on CI server
Anybody manage to get .NET 4.0 applications compiling on a CI server without installing Visual Studio 2010 on a CI server?
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Yes/No message box using QMessageBox
How do I show a message box with Yes/No buttons in Qt, and how do I check which of them was pressed?
6 Answers
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How do I break out of a loop in Perl?
I'm trying to use a break statement in a for loop, but since I'm also using strict subs in my Perl code, I'm getting an error saying:
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LINQ - Left Join, Group By, and Count
...from p in context.ParentTable
join c in context.ChildTable on p.ParentId equals c.ChildParentId into j1
from j2 in j1.DefaultIfEmpty()
group j2 by p.ParentId into grouped
select new { ParentId = grouped.Key, Count = grouped.Count(t=>t.ChildId != null) }
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Getting “A potentially dangerous Request.Path value was detected from the client (&)”
I've got a legacy code issue that requires that I support random urls as if they were requests for the home page. Some of the URLs have characters in them that generate the error "A potentially dangerous Request.Path value was detected from the client (&)" . The site is written with ASP.Net MVC...
git pull keeping local changes
How can I safely update (pull) a git project, keeping specific files untouched, even if there's upstream changes?
6 Answers...
What is causing ERROR: there is no unique constraint matching given keys for referenced table?
Below example table structure gives an ERROR: there is no unique constraint matching given keys for referenced table, and having stared at it for while now I can't figure out why this error arises in this situation.
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