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Switch statement fallthrough in C#?
... the time that the feature was written, C# had not yet added any "soft" keywords (like 'yield', 'var', 'from', and 'select'), so they had three real options: 1) make 'fallthrough' a hard keyword (you cant use it as a variable name), 2) write code necessary to support such an soft keyword, 3) use alr...
What is the behavior difference between return-path, reply-to and from?
...ID) and they put that address on the envelope before sending it. In other words, the Return-Path header is as trustworthy as the checks performed by the receiving SMTP server, where the others can be easily spoofed.
– cdhowie
Jun 15 '15 at 20:32
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How do I select a merge strategy for a git rebase?
...heirs" mean the opposite of what they do during a straight merge. In other words, "theirs" favors the commits on the current branch.
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RESTful Alternatives to DELETE Request Body
... Different query strings are different resources (in the HTTP sense of the word 'resource'). Also, a default reason isn't required for a uniform interface. That term refers to using GET, PUT, POST, PATCH and DELETE they way HTTP defined them. The commonality is between vendors (user agent vendors, A...
How do I terminate a thread in C++11?
... because it limits the faults propagation by the process borders. In other words, no one process can affects the consistency of any another process in the system. The same is true for the process behaviour but in the less restricted and more blur way. In such environment any process can be killed in...
How does database indexing work? [closed]
..., huh?
Now, imagine you want to find a particular Chapter that contains a word "Alchemist". Without an index page, you have no other option than scanning through the entire book/Chapters. i.e: 1000 pages.
This analogy is known as "Full Table Scan" in database world.
But with an index page, you...
Which cryptographic hash function should I choose?
... needing one or more of these properties. A hash function for securing passwords on a server will usually only require preimage resistance, while message digests require all three.
It has been shown that MD5 is not collision resistant, however, that does not preclude its use in applications that do...
List of ANSI color escape sequences
...ween languages are also interesting: note the profusion of distinct colour words used by English vs. Chinese. However, digging deeper into these languages shows that each uses colour in distinct ways. (More information)
Generally speaking, the naming, use, and grouping of colours in human languages...
Why doesn't c++ have &&= or ||= for booleans?
...ce the right-hand side to convert to bool, which &= does not. In other words, bool b = true; b &= 2; results in b == false.
– Angew is no longer proud of SO
Nov 10 '16 at 14:02
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“is” operator behaves unexpectedly with integers
...NEL_SINGLETON = object() # this will only be created one time.
def foo(keyword_argument=None):
if keyword_argument is None:
print('no argument given to foo')
bar()
bar(keyword_argument)
bar('baz')
def bar(keyword_argument=SENTINEL_SINGLETON):
# SENTINEL_SINGLETON tells ...