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by: John |
last post by:
Hello all,
I am trying to read in lines into a buffer from a file. Normally I would do
this very low-level,
but I have come to the conclusion I must stop doing everything the hard way.
So, I thought I would try
<fstream>. The code below causes an infinite loop in the while() statement.
Debugging, I see that the buffer just has a 0 in
the first position, and nothing else.
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by: Gunnar |
last post by:
Hello, I've just written a CPP program that reads integers from a
binary file, and used this code
while (my_ifstram.read( (char* ) &number, sizeof(int))
{
// do something with number
}
My question is now, where can I find a manual that describes what
the read method does with the ifstream object?
I'm sitting here with my Linux/Debian machine, but I have not found any
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by: Pete H |
last post by:
I am trying to use the same ifstream object to open two files. I will
eventually want to open many with a loop. The first file opens fine,
but the second has a problem. In my test I try to open two .txt files,
the first
text.txt reads:
First seems to work...
text2.txt reads:
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by: Jupiter5F |
last post by:
This problem from one of the message boards has got my curiosity going. The
task is to read in lines of data from a file where each line contains a name
and some integers. We want to output the name and the result of adding the
integers. i.e.
~~~~~~~~~~~~~~~~
Frank 3 5 1 9
Jeff 4 9 0
Nancy 2
Ron 1
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by: Ram Laxman |
last post by:
Iam new bie to C++ programming..
I want to write a program which will read the Comma separated
values(CSV) file column wise.
For example:
In a.txt:
"TicketNumber","Phone","CarNumber"
10,20,30
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by: Bernhard Hidding |
last post by:
Hi there,
I want to read an ASCII file ("magnetfile.dat") consisting of doubles into
an array. The ASCII file looks like this:
1.0 1.0 1.0 0.5
2.0 1.0 1.0 0.4
usw.
My code:
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by: jared.oconnell |
last post by:
Howdy,
I am having a weird problem with ifstream.
ifstream img;
img.open(im_fn.c_str(),ios::in|ios::binary);
char *x = new char;
if(!img) {
cerr << "Error: problem reading img" << endl;
exit(1);
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by: Robbie Hatley |
last post by:
Say I have an ifstream object, like so:
#include <iostream>
#include <fstream>
int main(int, char* Sam)
{
std::ifstream Bob;
Bob.open(Sam);
std::string buffer;
while (42)
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by: rory |
last post by:
I am reading a binary file and I want to search it for a string. The
only problem is that failbit gets set after only a few calls to
getline() so it never reaches the end of the file where the string is
contained. From reading through posts to this list it seems that
failbit gets set if there is a format error whilst reading. Is it bad
form to reading binary data into a char array? Is this why my
function below doesn't work?
void...
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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: 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:
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