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What's the difference between assignment operator and copy constructor?
...om some other object's data.
A(const A& rhs) : data_(rhs.data_) {}
For example:
A aa;
A a = aa; //copy constructor
An assignment operator is used to replace the data of a previously initialized object with some other object's data.
A& operator=(const A& rhs) {data_ = rhs.data_;...
Visual Studio can't build due to rc.exe
... MSVT package. Since no one knows whether they were left out by mistake or for license reasons, no one with MSVC is too interested in giving them out. A few Google searches turn up some tricky sources. Fortunately, Microsoft has finally wised up and solved this problem and many more.
http://msdn.mi...
Generating random whole numbers in JavaScript in a specific range?
...max if max isn't an integer).
* Using Math.round() will give you a non-uniform distribution!
*/
function getRandomInt(min, max) {
min = Math.ceil(min);
max = Math.floor(max);
return Math.floor(Math.random() * (max - min + 1)) + min;
}
Here's the logic behind it. It's a simple rule ...
Windows 7 SDK installation failure
...nd I looked at the solution at Ctrl+F5, Fix Problem Installing Windows SDK for Windows 7, but it didn't work.
I googled around and found the page Installing Visual C++ 2010 and Windows SDK for Windows 7: offline installer and installation troubleshooting and the advice there worked. Basically you ...
Including an anchor tag in an ASP.NET MVC Html.ActionLink
...
Should really use the overloads for ActionLink as described by @Brad Wilson.
– mattruma
Feb 20 '10 at 13:40
18
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How do I get a string format of the current date time, in python?
For example, on July 5, 2010, I would like to calculate the string
4 Answers
4
...
What is the difference between Int and Integer?
...mplementation-dependent but guaranteed to hold at least [-229 .. 229-1].
For example:
Prelude> (minBound, maxBound) :: (Int, Int)
(-9223372036854775808,9223372036854775807)
However, Integer is arbitrary precision, and not Bounded.
Prelude> (minBound, maxBound) :: (Integer, Integer)
<...
Possible to perform cross-database queries with PostgreSQL?
... below error message (and this Google result ), but is there anyway to perform a cross-database query using PostgreSQL?
8 ...
retrieve links from web page using python and BeautifulSoup [closed]
...httplib2.Http()
status, response = http.request('http://www.nytimes.com')
for link in BeautifulSoup(response, parse_only=SoupStrainer('a')):
if link.has_attr('href'):
print(link['href'])
The BeautifulSoup documentation is actually quite good, and covers a number of typical scenarios:
h...
Random record from MongoDB
...
Unfortunately skip() is rather inefficient since it has to scan that many documents. Also, there is a race condition if rows are removed between getting the count and running the query.
– mstearn
...