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Why do we need virtual functions in C++?
... a rat."
So far so good, right? Animals eat generic food, cats eat rats, all without virtual.
Let's change it a little now so that eat() is called via an intermediate function (a trivial function just for this example):
// This can go at the top of the main.cpp file
void func(Animal *xyz) { xyz-...
How to create REST URLs without verbs?
I'm struggling to determine how to design restful URLs. I'm all for the restful approach of using URLs with nouns and not verbs don't understand how to do this.
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List of tables, db schema, dump etc using the Python sqlite3 API
...te("SELECT name FROM sqlite_master WHERE type='table';")
print(cursor.fetchall())
Watch out for my other answer. There is a much faster way using pandas.
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How to make the python interpreter correctly handle non-ASCII characters in string operations?
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You actually only need # coding: utf-8. -*- is not for decoration, but you are unlikely to ever need it. I think it was there for old shells.
– fmalina
May 9 '13 at 13:40
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Why is sizeof considered an operator?
.... Indeed, that's kind of the point of sizeof.
A function would differ on all those points. There are probably other differences between a function and a unary operator, but I think that's enough to show why sizeof could not be a function even if there was a reason to want it to be.
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Get the device width in javascript
...th property.
Sometimes it's also useful to use window.innerWidth (not typically found on mobile devices) instead of screen width when dealing with desktop browsers where the window size is often less than the device screen size.
Typically, when dealing with mobile devices AND desktop browsers I use...
Reading a resource file from within jar
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I had this problem before and I made fallback way for loading. Basically first way work within .jar file and second way works within eclipse or other IDE.
public class MyClass {
public static InputStream accessFile() {
String resource = "my-file-loc...
How can you strip non-ASCII characters from a string? (in C#)
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For those of us RegEx'd challenged, would you mind writing out in plain english your RegEx pattern. In other words, "the ^ does this", etc...
– Metro Smurf
Sep 23 '08 at 22:45
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How do I determine file encoding in OS X?
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That's a function call you would use if you want to write a program. From the command line, just type ls -l@ <filename> to see what attributes are set for the file. To see the actual attribute, type xattr -p com.apple.TextEncoding <fil...
jQuery OR Selector?
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It should be noted this isn't really an 'or' selector, more like multiple selectors in one.
– alex
Feb 15 '10 at 3:57
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