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Efficient way to return a std::vector in c++
...it++ = 0;
*it++ = 1;
}
You can then also support the existing vector-based interface on top of that:
std::vector<int> f() {
std::vector<int> result;
f(std::back_inserter(result));
return result;
}
This might be less efficient than your existing code, if your existing...
Multiple submit buttons in an HTML form
...he form.
Here are two pages that give techniques on how to do this: 1, 2. Based on these, here is an example of usage (based on here):
<SCRIPT TYPE="text/javascript">//<!--
function submitenter(myfield,e) {
var keycode;
if (window.event) {
keycode = window.event.keyCode;
} else ...
How to give Jenkins more heap space when it´s started as a service under Windows?
... -Dhudson.lifecycle=hudson.lifecycle.WindowsServiceLifecycle
-jar "%BASE%\jenkins.war" --httpPort=8080</arguments>
to
<arguments>-Xrs -Xmx2048m -XX:MaxPermSize=512m
-Dhudson.lifecycle=hudson.lifecycle.WindowsServiceLifecycle
-jar "%BASE%\jenkins.war" --httpPort=80...
Sass or Compass without ruby?
...talled as well.
Taken from sass's site
Compass (requires Ruby, as it's based on SASS)
Compass is an open-source CSS authoring framework which uses the Sass stylesheet language to make writing stylesheets powerful and easy.
Taken from compass's site
Less (written in js, requires node.js o...
What is the difference between dynamic and static polymorphism in Java?
...serializes different
types of documents.
We can have ‘Document’ as the base class and different document type
classes deriving from it. E.g. XMLDocument , WordDocument , etc.
Document class will define ‘ Serialize() ’ and ‘ De-serialize() ’
methods as virtual and each derived class will ...
What does it mean when an HTTP request returns status code 0?
...efully (TCP FIN).
There are a number of things which could cause this, but based off of your description, some form of firewall seems the most likely culprit.
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How to properly seed random number generator
...ree that this matters to you will vary but you can avoid pitfalls of clock based seed values by simply using the crypto/rand.Read as source for your seed. It will give you that non-deterministic quality that you are probably looking for in your random numbers (even if the actual implementation itsel...
How do you modify a CSS style in the code behind file for divs in ASP.NET?
I'm trying to modify a CSS style attribute for a div based on the information I get from a database table in the code behind of my aspx page. The following is essentially what I am trying to do, but I get errors.
...
Optimise PostgreSQL for fast testing
...disk or other non-durable storage.
If you lose a tablespace the whole database may be damaged and hard to use without significant work. There's very little advantage to this compared to just using UNLOGGED tables and having lots of RAM for cache anyway.
If you truly want a ramdisk based system, in...
How to detect READ_COMMITTED_SNAPSHOT is enabled?
In MS SQL Server is there a way to detect whether a database has had its isolation level set via the T-SQL command ALTER DATABASE <database> SET READ_COMMITTED_SNAPSHOT ON;
...