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Resolving ambiguous overload on function pointer and std::function for a lambda using +
...esult is the value of the argument.
The lambda is not of arithmetic type etc., but it can be converted:
[expr.prim.lambda]/3
The type of the lambda-expression [...] is a unique, unnamed non-union class type — called the closure type — whose properties are described below.
[expr.prim.lam...
Delete an element from a dictionary
... the copy module.
Note that making a copy for every dict del/assignment/etc. means you're going from constant time to linear time, and also using linear space. For small dicts, this is not a problem. But if you're planning to make lots of copies of large dicts, you probably want a different data ...
What is the difference between IEqualityComparer and IEquatable?
...(considering GetHashCode is overridden as well), Contains on List<T> etc make use of this. Implementing IEqualityComparer<T> on T doesn't help the above mentioned general cases. Subsequently, there is little value for implementing IEquatable<T> on any other class other than T. This...
Configuring so that pip install can work from github
... when I had to install from github repo, but did not want to install git , etc.
The simple way to do it is using zip archive of the package. Add /zipball/master to the repo URL:
$ pip install https://github.com/hmarr/django-debug-toolbar-mongo/zipball/master
Downloading/unpacking https://githu...
What difference is there between WebClient and HTTPWebRequest classes in .NET?
...n fact, why weren't they merged into one class (too many methods/variables etc may be one reason but there are other classes in .NET which breaks that rule).
...
What does extern inline do?
...ing FILE and LINE as parameters. This can result in better debugger/editor/etc behaviour when the function body is non-trivial.
– Steve Jessop
Oct 20 '08 at 22:01
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How do PHP sessions work? (not “how are they used?”)
...ions in PHP are started by using the session_start( ) function. Like the setcookie( ) function, the session_start( ) function must come before any HTML, including blank lines, on the page. It will look like this:
<?php session_start( );?><html><head>
....... etc
The session_star...
Capture screenshot of active window?
...
/// <summary> Capture a .NET Control, Form, UserControl, etc. </summary>
/// <param name="c">Object to capture</param>
/// <returns> Bitmap of control's area </returns>
public static Bitmap Capture(Control c) {
...
What's so wrong about using GC.Collect()?
...y. Games used to pre-allocate all memory at startup (constant-sized arrays etc.).
– Luaan
Feb 13 '17 at 9:41
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How unique is UUID?
...y because of randomness? Or there are other factors? (e.g. time stamp, ip, etc)
– Weishi Zeng
Jun 5 '16 at 15:54
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