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Is cout synchronized/thread-safe?
...ate locking. However, do things like cout get special treatment in the standard library?
4 Answers
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How do I do a not equal in Django queryset filtering?
In Django model QuerySets, I see that there is a __gt and __lt for comparitive values, but is there a __ne / != / <> ( not equals ?)
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Difference between SurfaceView and View?
... if you need to update GUI rapidly or if the rendering takes too much time and affects user experience then use SurfaceView.
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How to Sort Multi-dimensional Array by Value?
...t($myArray, function($a, $b) {
return $a['order'] - $b['order'];
});
And finally with PHP 7 you can use the spaceship operator:
usort($myArray, function($a, $b) {
return $a['order'] <=> $b['order'];
});
To extend this to multi-dimensional sorting, reference the second/third sortin...
Is git-svn dcommit after merging in git dangerous?
My motivation for trying out git-svn is the effortless merging and branching. Then I noticed that man git-svn(1) says:
6 A...
inject bean reference into a Quartz job in Spring?
I managed to configure and schedule a Quartz job using JobStoreTX persistent store in Spring. I do not use Spring's Quartz jobs, because I need to schedule them dynamically, at run time, and all examples of integrating Spring with Quartz that i found were hard-coding the shcedules in the Spring con...
Why does an NSInteger variable have to be cast to long when used as a format argument?
...le on OS X (64-bit), because on that platform NSInteger is defined as long and is a 64-bit integer. The %i format, on the other hand, is for int, which is 32-bit. So the format and the actual parameter do not match in size.
Since NSInteger is 32-bit or 64-bit, depending on the platform, the compile...
What's in an Eclipse .classpath/.project file?
...pse itself.
The .project file is maintained by the core Eclipse platform, and its goal is to describe the project from a generic, plugin-independent Eclipse view. What's the project's name? what other projects in the workspace does it refer to? What are the builders that are used in order to build ...
What is the difference between JavaConverters and JavaConversions in Scala?
...n scala.collection , there are two very similar objects JavaConversions and JavaConverters .
4 Answers
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SQL Server Insert if not exists
...ROM EmailsRecebidos
WHERE De = @_DE
AND Assunto = @_ASSUNTO
AND Data = @_DATA);
END
replace with
BEGIN
IF NOT EXISTS (SELECT * FROM EmailsRecebidos
WHERE De = @_DE
AND Assunto = @_ASSUNTO
...