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Do c++11 lambdas capture variables they don't use?
...bda]/11:
If a lambda-expression has an associated capture-default and its compound-statement odr-uses this or a variable with automatic storage duration and the odr-used entity is not explicitly captured, then the odr-used entity is said to be implicitly captured.
Your lambda expression has an as...
What is std::string::c_str() lifetime?
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The c_str() result becomes invalid if the std::string is destroyed or if a non-const member function of the string is called. So, usually you will want to make a copy of it if you need to keep it around.
In the case of your example, it appears ...
Is there a way to quickly capitalize the variable name in Eclipse
... just blindly changes the case on the selected characters.
note: This tip comes from eclipse help. If you need to find it, click Help, Search, then type "uppercase". You'll find a page with lots of shortcuts.
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Where in a virtualenv does the custom code go?
... is cleaner to keep your project separate to the virtualenv directory, but comparing virtualenv to system python is unhelpful, because the purpose of virtualenv is to fix broken dependencies and isolate projects so they can use different package versions and even python versions (I realise this was ...
What is the difference between user variables and system variables?
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Right-click My Computer and go to Properties->Advanced->Environmental Variables...
What's above are user variables, and below are system variables. The elements are combined when creating the environment for an application. System va...
How to add global ASP.Net Web Api Filters?
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Creating a URL in the controller .NET MVC
...isense will give you the meaning of each of the parameters.
Update from comments: controller already has a UrlHelper:
string url = this.Url.Action("About", "Home", null);
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File content into unix variable with newlines
... why newlines are replaced with spaces is not entirely to do with the echo command, rather it's a combination of things.
When given a command line, bash splits it into words according to the documentation for the IFS variable:
IFS: The Internal Field Separator that is used for word splitting af...
How to port data-only volumes from one host to another?
...good for quick maintenance
tar cvf /backup/backup.tar /data: creates an uncompressed tar file of all the files in the /data directory
RESTORE:
# create a new data container
$ sudo docker create -v /data --name DATA2 busybox true
# untar the backup files into the new container᾿s data volume
$ s...