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How to properly check if std::function is empty in C++11?
...td::function has a callable target stored in it. The check is well-defined and works because of std::function::operator bool which allows for implicit conversion to bool in contexts where boolean values are required (such as the conditional expression in an if statement).
Besides, the notion of an ...
How to start a Process as administrator mode in C# [duplicate]
...main = "",
Password = pass,
UseShellExecute = false,
RedirectStandardOutput = true,
RedirectStandardError = true
};
Process.Start(psi);
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How to find foreign key dependencies in SQL Server?
... Thanks! I just needed to add << WHERE FK.TABLE_NAME = 'MyTable' AND CU.COLUMN_NAME = 'MyColumn' >> to get the specific column.
– Even Mien
Jun 10 '09 at 18:16
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How to run a shell script on a Unix console or Mac terminal?
I know it, forget it and relearn it again. Time to write it down.
7 Answers
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Highlight text similar to grep, but don't filter out text [duplicate]
...ll perl regular expressions.
$ ack --passthru 'pattern1' file_name
$ command_here | ack --passthru 'pattern1'
You can also do it using grep like this:
$ grep --color -E '^|pattern1|pattern2' file_name
$ command_here | grep --color -E '^|pattern1|pattern2'
This will match all lines and highli...
Waiting on a list of Future
...n use a CompletionService to receive the futures as soon as they are ready and if one of them throws an exception cancel the processing. Something like this:
Executor executor = Executors.newFixedThreadPool(4);
CompletionService<SomeResult> completionService =
new ExecutorCompletionSe...
When to use Windows Workflow Foundation? [closed]
Some things are easier to implement just by hand (code), but some are easier through WF. It looks like WF can be used to create (almost) any kind of algorithm. So (theoretically) I can do all my logic in WF, but it's probably a bad idea to do it for all projects.
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What is so special about Generic.xaml?
...trying to figure out how to organize my ResourceDictionary files for reuse and sharing with other members of my team.
2 Ans...
Is it possible to create a multi-line string variable in a Makefile
... you'll see the result that others have posted here -- the shell tries to handle the second and subsequent lines of the variable as commands themselves.
However, you can export the variable value as-is to the shell as an environment variable, and then reference it from the shell as an environment v...
Why can a class not be defined as protected?
...tected or package-private would be the same thing.
You can declare nested and inner classes as protected or private, though.
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