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What's the difference between HEAD^ and HEAD~ in Git?
... the parent of the commit (~~ and ^^ both refer to the grandparent commit, etc.) But they differ in meaning when they are used with numbers:
~2 means up two levels in the hierarchy, via the first parent if a commit has more than one parent
^2 means the second parent where a commit has more than on...
Does Python optimize tail recursion?
... functions, working in an interactive session rather than editing my code, etc.).
Optimizing tail-recursion in Python is in fact quite easy. While it is said to be impossible
or very tricky, I think it can be achieved with elegant, short and general solutions; I even
think that most of these soluti...
Initial bytes incorrect after Java AES/CBC decryption
...e, forgetting to convert to Base64, initialization vectors, character set, etc. So I thought of making a fully functional code.
Hope this will be useful to you all:
To compile you need additional Apache Commons Codec jar, which is available here:
http://commons.apache.org/proper/commons-codec/downl...
How to echo with different colors in the Windows command line
.../b %errorlevel%
*/
import System;
var arguments:String[] = Environment.GetCommandLineArgs();
var newLine = false;
var output = "";
var foregroundColor = Console.ForegroundColor;
var backgroundColor = Console.BackgroundColor;
var evaluate = false;
var currentBackground=Console.BackgroundColor;
va...
Best practices for SQL varchar column length [closed]
...e memory
than you have to. This affects cache efficiency, sorting speed, etc.
Basically, just come up with reasonable business constraints and error on a slightly larger size. As @onedaywhen pointed out, family names in UK are usually between 1-35 characters. If you decide to make it varchar(64)...
How is a tag different from a branch in Git? Which should I use, here?
... each branch that you may want to recreate -- for delivery, bug diagnosis, etc.
It's actually more complicated than this -- or as complicated as you want to make it -- but these examples should give you an idea of the differences.
...
Retrieve specific commit from a remote Git repository
...
Starting with Git version 2.5+ (Q2 2015), fetching a single commit (without cloning the full repo) is actually possible.
See commit 68ee628 by Fredrik Medley (moroten), 21 May 2015.
(Merged by Junio C Hamano -- gitster -- in commit a9d3493, 01 Jun 2015)
You now ha...
bool operator ++ and --
...R TRUE is TRUE, x OR FALSE is x, x AND FALSE is FALSE and x AND TRUE is x, etc using the same operators for boolean and bit-wise operations (since VB assumes twos-complement so -1 is all 1 bits). However, this can cause some strange bugs in VB if the coder doesn't catch that 2 (true) AND 4 (true) re...
What is the difference between Numpy's array() and asarray() functions?
...a copy is needed to satisfy any of the
other requirements (dtype, order, etc.).
subok : bool, optional If True, then sub-classes will be
passed-through, otherwise the returned array will be forced to be a
base-class array (default).
ndmin : int, optional Specifies the minimum number ...
Why is not in HTML 5 Tag list while is?
...we have <th> elements for table headers, but no <tf> elements. Etc.
– Mr Lister
Apr 12 '17 at 7:30
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