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Writing a compiler in its own language
...
@robru I don't know about K&R's process, I'm sure this wasn't the case for it, but theoretically, the source could compile itself from the very beginning. And as long as you have something or someone who can correctly execute the program...
error: passing xxx as 'this' argument of xxx discards qualifiers
...
}
string getName() const {
return name;
}
This is necessary because now you can call getId() and getName() on const objects as:
void f(const StudentT & s)
{
cout << s.getId(); //now okay, but error with your versions
cout << s.getName(); //now okay, but error with...
How to pinch out in iOS simulator when map view is only a portion of the screen?
... right using two fingers from each hand but I have it working like a charm now.
– Christopher
Jul 25 '12 at 22:07
Glad...
How to select the first element in the dropdown using jquery?
I want to know how to select the first option in all select tags on my page using jquery.
9 Answers
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Git keeps prompting me for a password
I've been using Git for a while now, but the constant requests for a password are starting to drive me up the wall.
28 Answ...
What is the difference between association, aggregation and composition?
... in first case. Will it still be association or will it become composition now?
– Saket
Aug 28 '14 at 5:39
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Perl build, unit testing, code coverage: A complete working example
...rg eq "true") {
return "true";
}
else {
return "unknown";
}
return "Unreachable code: cannot be covered";
}
1;
In the "t" directory, create a text file named "HelloPerlBuildWorld.t". This file is your unit test script that will attempt to fully test your Perl modu...
Expand/collapse section in UITableView in iOS
... headers that are already there will be a pain. Based on the way they work now, I am not sure you can easily get actions out of them. You could set up a cell to LOOK like a header, and setup the tableView:didSelectRowAtIndexPath to manually expand or collapse the section it is in.
I'd store an arra...
Null vs. False vs. 0 in PHP
...s.
0 is an int. Nothing to do with the rest above, used for mathematics.
Now, what is tricky, it's that in dynamic languages like PHP, all of them have a value in a boolean context, which (in PHP) is False.
If you test it with ==, it's testing the boolean value, so you will get equality. If you t...
Explain Morris inorder tree traversal without using stacks or recursion
...sal. So X is made the right child of B, then current is set to Y. The tree now looks like this:
Y
/ \
A B
\
X
/ \
(Y) Z
/ \
C D
(Y) above refers to Y and all of its children, which are omitted for recursion issues. The important part is li...