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What is the performance cost of having a virtual method in a C++ class?
...roblem specific to..." it's a tad worse for virtual dispatch as there's an extra page (or two if it happens to fall across a page boundary) that has to be in cache - for the class's Virtual Dispatch Table.
– Tony Delroy
May 13 '14 at 1:12
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Indexes of all occurrences of character in a string
...onger than a single character, then it is possible, by analyzing the guess string, to loop through word faster than the above loops do. The benchmark for such an approach is the Boyer-Moore algorithm. However, the conditions that would favor using such an approach do not seem to be present.]
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How to get HTTP Response Code using Selenium WebDriver
...Capabilities;
public class TestResponseCode
{
public static void main(String[] args)
{
// simple page (without many resources so that the output is
// easy to understand
String url = "http://www.york.ac.uk/teaching/cws/wws/webpage1.html";
DownloadPage(url);
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What's the best way to share data between activities?
...in the intent's extras or saving it somewhere else. If data is primitives, Strings or user-defined objects: send it as part of the intent extras (user-defined objects must implement Parcelable). If passing complex objects save an instance in a singleton somewhere else and access them from the launch...
What does “%.*s” mean in printf?
...pecifier/precision to printf(), rather than hard coding it into the format string, i.e.
void f(const char *str, int str_len)
{
printf("%.*s\n", str_len, str);
}
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How can I create an object based on an interface file definition in TypeScript?
...} as IModal;
Example Class
class Modal implements IModal {
content: string;
form: string;
href: string;
$form: JQuery;
$message: JQuery;
$modal: JQuery;
$submits: JQuery;
}
const modal = new Modal();
You may think "hey that's really a duplication of the interface" -...
How can I repeat a character in Bash?
...e me notice a behaviour of Bash's printf: it continues to apply the format string until there are no arguments left. I had assumed it processed the format string only once!
– Jeenu
Jan 8 '15 at 10:25
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How do I get the last four characters from a string in C#?
Suppose I have a string:
19 Answers
19
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How to use OpenFileDialog to select a folder?
... result = fbd.ShowDialog();
if (result == DialogResult.OK && !string.IsNullOrWhiteSpace(fbd.SelectedPath))
{
string[] files = Directory.GetFiles(fbd.SelectedPath);
System.Windows.Forms.MessageBox.Show("Files found: " + files.Length.ToString(), "Message");
}
}
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Inspecting standard container (std::map) contents with gdb
... Its also a bit frustrating that commands like "plist foo std::string" give syntax errors. It appears that the value_type can't contain any punctuation.
– Bklyn
Jan 9 '09 at 21:49
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