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std::shared_ptr thread safety explained
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As others have pointed out, you've got it figured out correctly regarding your original 3 questions.
But the ending part of your edit
Calling reset() in thread IV will delete previous instance of A class created in first thread and replace it with new instance? M...
Do regular expressions from the re module support word boundaries (\b)?
While trying to learn a little more about regular expressions, a tutorial suggested that you can use the \b to match a word boundary. However, the following snippet in the Python interpreter does not work as expected:
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Naming of ID columns in database tables
...ield-keywords=sql+antipatterns&sprefix=sql+a
If you have many tables with ID as the id you are making reporting that much more difficult. It obscures meaning and makes complex queries harder to read as well as requiring you to use aliases to differentiate on the report itself.
Further if some...
Bash set +x without it being printed
Does anyone know if we can say set +x in bash without it being printed:
5 Answers
5
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Why can't I define a static method in a Java interface?
EDIT: As of Java 8, static methods are now allowed in interfaces.
24 Answers
24
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Application auto build versioning
Is it possible to increment a minor version number automatically each time a Go app is compiled?
6 Answers
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How can I measure the speed of code written in PHP? [closed]
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You have (at least) two solutions :
The quite "naïve" one is using microtime(true) tobefore and after a portion of code, to get how much time has passed during its execution ; other answers said that and gave examples already, so I won"t say much more.
This is a ni...
HTTP Basic Authentication - what's the expected web browser experience?
...estion in two parts.
First : "how can make an authenticated HTTP request with a browser, using BASIC auth?".
In the browser you can do a http basic auth first by waiting the prompt to come, or by editing the URL if you follow this format: http://myusername:mypassword@somesite.com
NB: the curl com...
Phonegap Cordova installation Windows
...ommand line, node.js stuff (seriously you will waste hours on this.
Go to github and simply download the PhoneGap master .zip
In that zip are project files for window phone, etc platform... just use those templates.
I don't know how such an easy process could have worse documentation. It as if it...
SignalR - Sending a message to a specific user using (IUserIdProvider) *NEW 2.0.0*
...cation.
In SignalR 2.0, this is done by using the inbuilt IPrincipal.Identity.Name, which is the logged in user identifier as set during the ASP.NET authentication.
However, you may need to map the connection with the user using a different identifier instead of using the Identity.Name. For this p...