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by: ma740988 |
last post by:
Consider:
# include <iostream>
# include <string>
# include <map>
# include <bitset>
# include <vector>
using namespace std;
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by: sshock |
last post by:
Hi all,
I want to read from a file into a vector<unsigned char>. Right now my
code looks like this:
FILE* f = fopen( "datafile", "rb" );
enum { SIZE = 100 };
vector<unsigned char> buf(SIZE);
fread(&buf, 1, SIZE, f);
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by: aaragon |
last post by:
I am trying to create a vector of type T and everything goes fine until
I try to iterate over it. For some reason, the compiler gives me an
error when I declare
std::vector<T>::iterator iter;
Any ideas why is tihs happening? The code is as follows:
template <class T>
struct StdVectorStorage
{
std::vector<T>* _storage;
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by: Bobrick |
last post by:
Hi.
I'm in the process of making a GUI for a function someone else wrote,
and i've come across a type i'm unfamiliar with, namely
"std::vector<unsigned char>". I need to get the contents of this
variable into a form I can display in a text box, but i'm not sure what
to expect inside of the variable, whether I can just treat it like an
array e.t.c. Any help would be appreciated.
Thanks,
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by: atomik.fungus |
last post by:
Hi, I'm re-writting my matrix class to practice my programming and the
computer doesn't let me compile the next code: ( this example come
from the constructor of the class)
//the matrix is made of vectors of vectors
template< typename T >
matrix< T >::matrix( unsigned rows, unsigned columns )
{
vector< vector< T ::iterator p;
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by: subramanian100in |
last post by:
Consider the following piece of code:
#include <iostream>
#include <fstream>
#include <vector>
#include <string>
#include <utility>
#include <iterator>
#include <algorithm>
int main()
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by: t |
last post by:
Can you use a plain iterator to vector<const intto write to it? It
doesn't seem like it should be possible, but Visual C++ 2005 Express
lets me:
vector<const intvc;
vc.push_back(5);
vector<const int>::iterator iter = vc.begin();
*iter = 3; // compiles
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by: subramanian100in |
last post by:
Consider a class that has
vector< pair<int, string>* c;
as member data object.
I need to use operator>to store values into this container object
and
operator<< to print the contents of the container.
I have written both these operators as non-friend functions.
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by: muzicmakr |
last post by:
I'm porting some code from windows to mac, and there are some
instances of std::vector<const MyType>, that compiled just fine on the
pc, but won't compile under gcc.
I'd never tried to do this particular construct myself, and after some
searching online, I found a post somewhere saying this isn't legal c++
because the standard containers need types that are assignable.
My questions-- is that correct? Why does visual studio allow it if...
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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: 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: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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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: 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: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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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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