Is there a way to read a large text file (~60MB) into memory at once (like a compiler flag to increase program memory limit) ? Currently, ofstream's open function throws a segmentation fault while trying to read this file.
ifstream fis;
fis.open("my_large_file.txt"); // Segfaults here
The file just consists of rows of the form
number_1<tabspace>number_2
i.e., two numbers separated by a tabspace.
Hi guys, I have a problem. I have to access to the data folder of
other applications from my application
to read configuration's file and so on but it seems it's possible only
to read data from the sdcard and my application's data folder.
Can you suggest me how to solve this problem?
I have a windows service which is trying to access an xml file from the Application directory.
Windows Service Installed directory : C:\Services\MyService\MyService.exe
Path of the xml file : C:\Services\MyService\MyService.xml
I am trying to access the file using the following code.
using (FileStream stream = new FileStream("MyService.xml", FileMode.Open, FileAccess.Read))
{
//Read file
}
I get the following error.
"Can not find file : C:\WINDOWS\system\MyService.xml"
My service is running with local system account and I don't want to use absolute path.
I'm doing a steganography project where I read in bytes from a ppm file and add the least significant bit to an array. So once 8 bytes are read in, I would have 8 bits in my array, which should equal some character in a hidden message. Is there an easy way to convert an array of 0's and 1's into an ascii value? For example, the array: char bits[] = "0,1,1,1,0,1,0,0" would equal 't'.
My application should be able to get all the mails in the inbox. What are some mail clients that make it simple for me to read the inbox? (Preferably providing an API.)
Please add to your answer how to do it. (Read a file on the disk, use an API, etc.)
Hi
I want to read whole file contents in groovy on command line.
I am using this code
#!/usr/bin/env groovy
def xmlData =""
System.in.withReader {
xmlData=xmlData+ it.readLine()
}
println xmlData
and the following command
cat 1.xml | /root/a.groovy
But it only reads one line from the file. I want to read whole file.
Any suggestion??
Regards
Shuja
I'm trying to use fread/ifstream to read the first 2 bytes of a .csv with BOM info. But following code always skips the first two bytes (which are 'FF FE'):
ifstream is;
is.open (fn, ios::binary );
char buf[2];
is.read(buf, 2);
is.close();
using FILE*/fread does no better.
How can I read from an embedded XML file - an XML file that is part of a c# project?
I've added a XML file to my project and I want to read from it. I want the XML file to compile with the project because I don't want that it will be a resource which the user can see.
Any idea?
I have a background image on top of which there is some text.
It is very hard to read the text because of the background.
I would like to add a white background just around the text itself, such that the text could be easily read. How can I accomplish this using CSS/Javascript/jQuery ?
I am trying to read the 64-bit HKLM\SOFTWARE registry key from a 32-bit (C#) application. This, of course, keeps redirecting my view to HKLM\SOFTWARE\Wow6432Node.
According to what I've found this is doable, but I can't seem to find a .NET example anywhere. I just need to read; not write. Anyone ran across this before?
I am trying to read the 32-bit HKLM\SOFTWARE registry key from a 64-bit (C#) application. This, of course, keeps redirecting my view to HKLM\SOFTWARE\Wow6432Node.
According to what I've found this is doable, but I can't seem to find a .NET example anywhere. I just need to read; not write. Anyone ran across this before?
I have client and server in unix machine, how can i find out my server is down and reconnect to server. without bringing my client down.
I am doing connect (), but read() isiving me error
Transport endpoint is already connected. I am using C++ in solaris.
And what return value of read and connect should i check.
i want to read serial port when there is some data present i mean on the event when data arrives only then i will read serial port instead of continuously reading the port i have this code for continuous reading the port how can i make it event based.
thanx in advance.
while(1)
{
bReadRC = ReadFile(m_hCom, &byte, 6, &iBytesRead, NULL);
printf("Data Recieved Through Serial port and no. of Bytes Recieved is %d",iBytesRead);
}
I'm trying to write fully automated unit tests in JavaScript and I'm looking for a way to read some private variables in various JS functions. I thought I recalled a way to inject privileged members into a function/object (and found an overwhelming occurrence of "no such thing as private in JS") and yet I can't find any resources indicating how.
I'm trying to read through the properties of .prototype but if there's a way, someone out here would know where to direct me faster than I'd find on my own.
Thanks
how do i set a sql server connection to readonly? i tried googling and all i found was File Mode=Read Only but it didnt work (File Mode keyword not supported). And the reference looked sql ce specific.
No luck with sqlite Read Only=True either.
Read this question today about safe and unsafe code I then read about it in MSDN but I still don't understand it. Why would you want to use pointers in C#? Is this purely for speed?
I can read from a file 1 character at a time, but how do i make it go just one word at a time? So, read until there is a space and take that as a string.
This gets me the characters:
while (!fin.eof()){
while (fin f ){
F.push_back ( f );
}
I am using OLEDB method to read an excel file, however if the file is closed then there is no issues but if the file that has to be read is open then if i use oledb i get an error.
Any workaround for this???????
Please help....
When using imageio.imageio.read iget a can't create ImageInput Stream. I have a catch exception around it so the program survives but i was wondering if theres a way to put an if statement round it that checks to see if it falied and then attempt to read it again if it did.
basically asking if there is a test for exceptions?
I wonder if anyone could point me in the direction where I can read about the nuts and bolts of C#. What I'm interested in learning are method call costs, what it costs to create objects and such.
My aim of learning this is to get a better understanding of how increase the performance of an application and get a better understanding of how the C# language works.
The reference should preferable be a book, a book that I can read cover to cover.
I don't really know much about sockets except how to read and write to them as if they were files. I know a little about using socket selectors. I don't get why you have to flush a socket, what's actually happening there? The bits just hang out somewhere in memory until they get pushed off? I read some things online about sockets, but it's all very abstract and high level.
What's actually happening here?
I have a site collection and user A is having Design permissions in it.I created a subsite inheriting parent permissions and now I need to give just read permissions to user A in my subsite.
I have tried going to users and group of subsite ..created new group having read permissions and added that user into it...but its not working any idea ...how I can do this?
Hello dear commmunity, good day!
I run a little site (now for several months ) that has users accessing big files, for
download as well for streaming to the browser.
It's fairly active, so assuming the worst, how bad is getting php to read the files that would be stored outside of the webroot and then getting it to echo it to a page dynamically for the browser to then read?
My question is: how bad is fread() etc in this context!?
zero
i need to clear the data on serial port when i have read the data from it before i read the data again? i m using c/c++
how can i do so ?
thanx in advance.