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Can you use hash navigation without affecting history?
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Totally the way to go for modern browsers; be aware of the partial support session history management has though.
– Matt
Oct 19 '14 at 16:43
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Git: Find the most recent common ancestor of two branches
...ed Acyclic Graph, and yet it's often thought of as a tree, which it technically is not. To be more careful in my wording, I was talking about the case where you want the parent of the first instance of the "branches" diverging... since they may have multiple points where they re-merged and re-split...
Unique constraint that allows empty values in MySQL
...reference (version 5.5).
A UNIQUE index creates a constraint such that all values in the index must be distinct. An error occurs if you try to add a new row with a key value that matches an existing row. For all engines, a UNIQUE index allows multiple NULL values for columns that can contain NU...
When should I really use noexcept?
...n it's obvious that the function will never throw.
When can I realistically expect to observe a performance improvement after using noexcept? [...] Personally, I care about noexcept because of the increased freedom provided to the compiler to safely apply certain kinds of optimizations.
It se...
What is the difference between i++ and ++i?
... Neither statement is correct. Consider your first statement. i++ actually means "save the value, increment it, store it in i, then tell me the original saved value". That is, the telling happens after the incrementing, not before as you have stated it. Consider the second statement. i++ actual...
How do I remove the passphrase for the SSH key without having to create a new key?
...ch can be left blank to have no passphrase).
If you would like to do it all on one line without prompts do:
$ ssh-keygen -p [-P old_passphrase] [-N new_passphrase] [-f keyfile]
Important: Beware that when executing commands they will typically be logged in your ~/.bash_history file (or similar...
Using Transactions or SaveChanges(false) and AcceptAllChanges()?
...of themselves in EF as long as I pass false to SaveChanges() and then call AcceptAllChanges() if there are no errors:
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node.js child process - difference between spawn & fork
... node process. You can add listeners for the process you have spawned, to allow your code interact with the spawned process, but no new V8 instance is created(unless of course your command is another Node command, but in this case you should use fork!) and only one copy of your node module is activ...
Should struct definitions go in .h or .c file?
...ou mean global and local visibility? public doesnt make sense in a struct. All structs are public by default.
– BugShotGG
Jul 6 '15 at 16:05
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Should I use Python 32bit or Python 64bit
I have a win7 64bit installation. Must I use Python 64bit? What are the differences between the 32bit and 64bit Python versions anyway? Do different Python packages (such as south, django, mysqldb etc) support only 32bit/64bit?
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