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by: Kyle Teague |
last post by:
I have a list of pointers to structs as a private member of a class.
If I call begin() in the same function as I added the data then no
access violation occurs. However, if I try to call begin() in a member
function of the same class I get a memory access violation.
For example:
// this is fine, no error
void CBase::FuncA( void ) {
plugin_info_t *plugin_info = new plugin_info_t;
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by: velthuijsen |
last post by:
I tried taking a list and pass it through std::sort like the following:
sort(Unsorted.begin(), Unsorted.end());
I got an error back stating that the list iterator doesn't have a
binary substraction operator.
Peeking in the algoritm header file it's clear why seeing that sort
there calls _sort(_First, _Last, _Last-_First) which might be a tad
challenging seeing that the different values stored in a list do not
need to be stored...
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by: gerg |
last post by:
I'm having to deal with some legacy code which I think may be causeing
some problems. Can STL pro's please add comments about the correctness
of the following code:
class A
{
public:
/// ... assume constructors and such are defined
char* sz; // pointer to memory buffer
};
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by: Markus Svilans |
last post by:
Hi,
There seems to be some functionality missing from the STL.
I am iterating through a linked list (std::list) using a reverse
iterator and attempting to erase certain items from the list. It is
important that I iterate through the list backwards, because the items
in it have to be processed in reverse order before erasing. However,
there does not appear to be an std::list::erase() method defined for
reverse iterators.
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by: alex221 |
last post by:
In need to implement a tree structure in which every node has arbitrary
number of children the following code has come into mind:
using std::list;
template < class Contents class Tree_node{
Contents cn;
list < BTree_node < Contents children;
........
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by: Andy |
last post by:
Hello,
I have the following situation:
Thread A is allocating a dataset, doing some low-level calculations
and storing a pointer to the dataset in a std::list via push_back.
Thread B should retrieve the pointer to the first dataset in the list,
remove it from the list, and do some high level analysis.
The problem now is, how do I efficiently retrieve the pointer?
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by: desktop |
last post by:
If I have a sorted std::list with 1.000.000 elements it takes 1.000.000
operations to find element with value = 1.000.000 (need to iterator
through the whole list).
In comparison, if I have a std::set with 1.000.000 element it will only
take approx lg 1.000.000 = 20 operations! Can it really be true that the
difference is a factor of 1.000.000/20 = 50.000 in this case?
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by: lallous |
last post by:
#include <conio>
#include <list>
typedef std::list<intint_list_t;
typedef std::list<int_list_t::iteratorint_list_iterator_list_t;
void print_list(int_list_t &L)
{
for (int_list_t::iterator it=L.begin();it!=L.end();++it)
{
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by: Mike Copeland |
last post by:
How do I work with a std::list that might have multiple objects
having the same "key", but which have other data that is different?
Here's code that compiles, but doesn't do quite what I expect:
(Please note that there's some specialized I/o code here, but the
logic flow should be clear...)
struct GenCheck // Gender Check data
{
char genCode;
int useCount;
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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: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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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: 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: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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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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