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What are all the common undefined behaviours that a C++ programmer should know about? [closed]
What are all the common undefined behaviours that a C++ programmer should know about?
11 Answers
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Unable to authenticate with Git Bash to Visual Studio Team Services
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Thanks for this! Any one know how to store the credentials so I don't have to enter them over and over?
– Erick Brown
Dec 3 '14 at 3:50
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NoSql vs Relational database
... big advantages:
Strong mathematical basis.
Declarative syntax.
A well-known language in Structured Query Language (SQL).
Those haven't gone away.
It's a mistake to think about this as an either/or argument. NoSQL is an alternative that people need to consider when it fits, that's all.
Docum...
Why prefer two's complement over sign-and-magnitude for signed numbers?
... to 4 bits for size). In the two's complement way, they are 0010 and 1111. Now, let's say I want to add them.
Two's complement addition is very simple. You add numbers normally and any carry bit at the end is discarded. So they're added as follows:
0010
+ 1111
=10001
= 0001 (discard the carry)
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Evenly distributing n points on a sphere
... to N-1). If that is all that is confusing you, hopefully you can use that now.
(in other words, k is an array of size N that is defined before the code fragment starts, and which contains a list of the points).
Alternatively, building on the other answer here (and using Python):
> cat ll.py
f...
Bogus foreign key constraint fail
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On demand, now as an answer...
When using MySQL Query Browser or phpMyAdmin, it appears that a new connection is opened for each query (bugs.mysql.com/bug.php?id=8280), making it neccessary to write all the drop statements in one query...
Comment shortcut Android Studio
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For some reason it stopped working for me. Now this combo just folds the block of code. Any clue?
– danielrosero
Mar 13 '18 at 22:48
add a comm...
How can I recover a lost commit in Git?
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Just to mention: if you know the branch name: git reflog <branchname> can be quite useful, since you see the changes of just one branch.
– Markus Schreiber
Jun 9 at 13:47
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How can I tell Rails to use RSpec instead of test-unit when creating a new Rails app?
...mmand line install rspec into your application:
$ rails g rspec:install
Now your rails application uses RSpec instead of test-unit.
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Case insensitive 'in'
...r()
except:
pass
return self.__s == other
Now, if CaseInsensitively('MICHAEL89') in whatever: should behave as required (whether the right-hand side is a list, dict, or set). (It may require more effort to achieve similar results for string inclusion, avoid warnings...