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std::unique_lock or std::lock_guard?
...e on construction and unlocked on destruction.
So for use case B you definitely need a std::unique_lock for the condition variable. In case A it depends whether you need to relock the guard.
std::unique_lock has other features that allow it to e.g.: be constructed without locking the mutex immedi...
Gmail's new image caching is breaking image links in newsletter
...got some automatic emails that are sent out upon signup completion for my site.
16 Answers
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What is the Git equivalent for revision number?
We use SVN at work, but for my personal projects I decided to use Git. So I installed Git yesterday, and I wonder what is the revision number equivalent in Git .
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Get the time difference between two datetimes
I know I can do anything and some more envolving Dates with momentjs. But embarrassingly, I'm having a hard time trying to do something that seems simple: geting the difference between 2 times.
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How to render an ASP.NET MVC view as a string?
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Here's what I came up with, and it's working for me. I added the following method(s) to my controller base class. (You can always make these static methods somewhere else that accept a controller as a parameter I suppose)
MVC2 .ascx style
protect...
How do I check if a variable exists in a list in BASH
I am trying to write a script in bash that check the validity of a user input.
I want to match the input (say variable x ) to a list of valid values.
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MSSQL Error 'The underlying provider failed on Open'
I was using an .mdf for connecting to a database and entityClient . Now I want to change the connection string so that there will be no .mdf file.
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Why is Visual Studio 2013 very slow?
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It is something concerned with the graphics drivers. If you update them you will be fine.
Or you can disable the hardware graphics acceleration in Visual Studio according to these steps:
In Visual Studio, click "Tools", an...
GCM with PHP (Google Cloud Messaging)
... via PHP CURL.
// Payload data you want to send to Android device(s)
// (it will be accessible via intent extras)
$data = array('message' => 'Hello World!');
// The recipient registration tokens for this notification
// https://developer.android.com/google/gcm/
$ids = array('abc', 'def...
How do I detect unsigned integer multiply overflow?
I was writing a program in C++ to find all solutions of a b = c , where a , b and c together use all the digits 0-9 exactly once. The program looped over values of a and b , and it ran a digit-counting routine each time on a , b and ab to check if the digits condition was satisfied.
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