I am using ADTF Libraries to write a structure data. I need to verify whether the data is being written properly. How can i do this?
I am assuming you are writing structured data to a .dat/.adtfdat file. In that case, you can always convert a .dat/.adtfdat file into a csv to verify. See examples on how to do so.
If you have access to MATLAB, then the easiest way would be using a simple function in MATLAB : adtffilereader
Alternatively, there are these tools that help in extracting data out of a dat file.
Related
I have got a trace file that is binary in nature. I want to convert it to a text file and convert the data inside it to decimal form. I mean I am not sure, how to do this. This .trc file contains data in the form of telegrams and I want to extract particular kind of telegram and save them in text file which is readable in nature. I have to do all of this using C++.
Do you suggest any other language for it or does anyone has any idea about doing this in C++?
Binary trace files are usually encoded in proprietary formats. And there are applications or profilers specifically built to parse them.
Unless you know the file format, the only way to decode it is through reverse engineering. And in most cases it's not worth the effort.
Try to find documentation about it. Or maybe an application or utility that loads the file and exports data that is easier to read.
In case you are speaking about .trc binary files from Teledyne Lecroy Oscilloscopes, I would suggest to any of the following libraries out there for that:
https://pypi.org/project/lecroyparser/
https://github.com/jneer/lecroy-reader
https://github.com/yetifrisstlama/readTrc
https://igit.ific.uv.es/ferhue/lecroyparser
I want to read a data from excel file and store into variable i also want to read index of excel file.I don't no how to do this.so please show the your example in c++ code.
Excel files are quite hard to read with C++. They are stored as a binary file and need to be properly read and interpreted by your code.
There are libraries out there to do this. Maybe check this post out
I'd like to read the contents of a .csv file from a website, into a c++ program. Specifically, it is financial data of the form from google finance.
http://www.google.com/finance/historical?cid=22144&startdate=Nov+1%2C+2011&enddate=Nov+14%2C+2011
(If you append "&output=csv" to the above link it will download the data as a csv file)
I know that I can use something like libcurl to download the file and then read it in from there, but I wanted to read it directly into the program without having to write it to a file first.
Can I get some suggestions on the best way to do this? I was thinking boost.asio but I have no experience with it (or network programming in general).
If you are trying to download it from a web resource you will need to implement at least some part of the HTTP protocol. libcurl will do this for you.
You don't need to save it as a file. This example will show you how to download and store it in a memory buffer.
.NET has spoiled me and made me realize how simple certain things can be :(
With C++ i'd like to use either fopen or ostream/istream to push data to either zlib directly or to some kind of memory buffer (then zlib) then proceed to dump it to a file. I'd like something similar to load it back in.
I looked at zlibs example and while it looks simple it isnt an iostream or file and i need to use buffers. Does anyone know of a existing solution?
You need to use boost IOstream API to read the zipped files and create an iostream. I wrote code for this based on Boost documentation. The code and a related question on how to read the zipped file line -by-line is available here:
How can I read line-by-line using Boost IOStreams' interface for Gzip files?
I'm searching for a way to extract a file in c++ by using the boost::iostreams classes.
There is an example in the boost documentation. But it outputs the content of the compressed file to std::cout.
I'm looking for a way to extract it to a file structure.
Does anybody know how to do that?
Thanks!
Boost.IOStreams does not support compressed archives, just single compressed files. If you want to extract a .zip or .tar file to a directory tree, you'll need to use a different library.
The example in the documentation shows how to decompress the file and push the result to another stream.
If you want the output to be directed to an in-memory array instead, you can use a stream of type boost::iostreams::stream<boost::iostreams::array_source>instead.
That is basically a stream-wrapper around an array.
I'm not sure what you mean when you say you want the output in "a file structure" though.
Looks to me like the call to boost::iostreams::copy takes an ostream as the second parameter. Have you tried creating an ofstream with your output file name and using that?
You probably don't want that library. You might want to look around for some others.
E.g. zziplib