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When is CRC more appropriate to use than MD5/SHA1?
...s, CRC is much easier to implement on embedded hardware, you can even get different packaged solutions for this on IC.
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Pure virtual destructor in C++
...::~A() { }
should suffice.
And since this got a down vote, I should clarify: If you derive anything from A and then try to delete or destroy it, A's destructor will eventually be called. Since it is pure and doesn't have an implementation, undefined behavior will ensue. On one popular platform, t...
“Cannot update paths and switch to branch at the same time”
...re origin is fetched:
git fetch origin
Then:
git branch -avv
(to see if you do have fetched an origin/master branch)
Finally, use git switch instead of the confusing git checkout, with Git 2.23+ (August 2019).
git switch -c test --track origin/master
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How can I add the sqlite3 module to Python?
...
if your python3 is built from source manually , and meet this error, you should install sqlite-devel package first, then rebuild python3.
– ngn999
Mar 28 '16 at 1:28
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How do I create a Linked List Data Structure in Java? [closed]
...or
public LinkList() {
first = null;
}
//Returns true if list is empty
public boolean isEmpty() {
return first == null;
}
//Inserts a new Link at the first of the list
public void insert(int d1, double d2) {
Link link = new Link(d1, d2);
...
Hex transparency in colors [duplicate]
... color transparency I searched around a bit although I couldn't find a specific answer to my question.
10 Answers
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do {…} while(false)
...ode, but doing something like this is just an idiotically disguised goto. If you think a goto is the right tool for the job, then you should just use a #$(*#@ goto.
– dsimcha
Feb 22 '10 at 20:55
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INSERT statement conflicted with the FOREIGN KEY constraint - SQL Server
...olumn that is not also in the primary key column of the referenced table.
If you have SQL Server Management Studio, open it up and sp_help 'dbo.Sup_Item_Cat'. See which column that FK is on, and which column of which table it references. You're inserting some bad data.
Let me know if you need anyt...
Getting the difference between two sets
So if I have two sets:
7 Answers
7
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How to calculate moving average without keeping the count and data-total?
... Beware that this is quite far from the common definition of average. If you set N = 5 and enter 5 5 samples, the average will be 0.67.
– Dan Dascalescu
Jan 9 '18 at 8:28
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