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by: Bulba! |
last post by:
Hello Mr Everyone,
From:
http://docs.python.org/tut/node11.html#SECTION0011900000000000000000
"Define a __iter__() method which returns an object with a next()
method. If the class defines next(), then __iter__() can just return
self:"
The thing is, I tried to define __iter__() directly without explicit
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by: Grant Edwards |
last post by:
In an interview at http://acmqueue.com/modules.php?name=Content&pa=showpage&pid=273
Alan Kay said something I really liked, and I think it applies
equally well to Python as well as the languages mentioned:
I characterized one way of looking at languages in this
way: a lot of them are either the agglutination of features
or they're a crystallization of style. Languages such as
APL, Lisp, and Smalltalk are what you might call style...
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by: CoolPint |
last post by:
If I were to design my own container and its iterators, I understand
that I need to provide both "iterator" and "const_iterator" so that
begin() and end() return appropriate ones depending on the
"constantness" of the container object. I also note that is it done
through overloading begin() and end() like below:
iterator begin();
const_iterator begin() const;
So it seems to me that I need to have two separate iterator classes
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by: CoolPint |
last post by:
I am trying to write a generic heapsort (of course as a self-exercise)
with Iterator interface: something like blow....
But I got into trouble finding out the Iterator to the Child node. If
indexing was used, I could do something like child = hole * 2 + 1; but
since only thing the function accepts are random access Iterators, how
do I calculate the Iterator to the child node?
template <typename Iterator, typename Functor>
void...
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by: matthurne |
last post by:
I am working through exercise 8-2 in Accelerated C++...I am
implementing the function equal(b, e, b2) where b is an iterator for
the first element in a container, e is an iterator pointing to one
past the last element in that same container, and b2 is an iterator
for the first element in the second container. Here's what I have:
template <class T>
bool equal(T begin, T end, T begin2) {
while (begin != end) {
if (*begin != *begin2) {
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by: Chung Leong |
last post by:
Just saw a message in pl.comp.lang.php, which states that the following
message has appeared in the PHP CVS snapshot:
Usage of {} to access string offsets is deprecated and will be removed
in PHP 6
What do you think of that?
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by: Mark P |
last post by:
A couple template related questions:
1. In the code pasted below, why does the basic version get selected in
the call to foo and the const version get selected in the call to bar?
2. When working with STL output iterators, is there any general advice
on whether they should be passed by value or reference? I have
templated code which takes ostream_iterators or back_insert_iterators
which I inititally chose to pass by reference, but...
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by: mailforpr |
last post by:
How do I do that?
The thing is, the only information I have about the iterator is the
iterator itself. No container it is belonging to or anything. Like
template<Iteratorvoid totally_isolated(Iterator& it)
{
//how do I find out if it points to the end node?
}
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by: Steven D'Aprano |
last post by:
I thought that an iterator was any object that follows the iterator
protocol, that is, it has a next() method and an __iter__() method.
But I'm having problems writing a class that acts as an iterator. I have:
class Parrot(object):
def __iter__(self):
return self
def __init__(self):
self.next = self._next()
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by: mkborregaard |
last post by:
Hi,
I have the weirdest problem, and I can not see what is going wrong.
I have made a 2d container class, and am implementing an iterator for that class. However, the ++ operator is behaving very strange. The implementation looks like this (there is a lot of code, but I have only included it all for consistency. The problem is quite small and local):
template<typename T> class Row<T> : public std::vector<T> {};
template<typename...
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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