Re: [boost] [boost.ublas] [gsoc'15]

If you have a license of MATLAB, you can use the gallery function to generate some very good test matrices. *Rajaditya Mukherjee * *3rd Year Graduate Student* Dept. of Computer Science and Engineering The Ohio State University Columbus, Ohio Tel :- +1-(614)-271-4439 email :- rajaditya.mukherjee@gmail.com , raj@rajaditya.com On Tue, Mar 10, 2015 at 8:18 AM, Ganesh Prasad wrote:

Hey Dhruv I am an applicant myself, I think I can give you a few ideas regarding your queries.

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1. Can someone please direct me to some code snippet that shows how the error handling code is written in boost library.

Go through the library source code thoroughly. Use a code dependency graph generator to browse code easily. (Easiest way is to run doxygen over the ublas directory). That will make going through the code real fast.

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2. What sort of test code is required? Do we need to have a test case with hard-coded output to be checked against the results obtained when the test case is passed to the algo. Or there's some other predefined format for testing codes in boost library.

Not sure about the format, but the tests should cover as many cases as possible.

Best wishes Ganesh Prasad

On 10 March 2015 at 15:03, Dhruv Kohli wrote:

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Hello,

I am Dhruv, majoring in Mathematics & Computing from Indian Institute of Technology, Guwahati. After doing a bit of research over the project ideas, I found the idea of further developing boost.ublas library interesting and have started writing the programming competency code. Here is the link to the code I've written yet:

https://github.com/chiggum/boost.ublas/blob/master/gaussian_elimination.hpp

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. Though the code is not yet complete, but a naive version of algorithm is implemented and is integrated into ublas. To me, the code seems to be running properly.

I need a little help for proceeding further. 1. Can someone please direct me to some code snippet that shows how the error handling code is written in boost library. To be specific, the gaussian elimination doesn't work on singular matrices. So, I would like to set the errno and display appropriate message to the user whenever a singular matrix is given as an input.

2. What sort of test code is required? Do we need to have a test case with hard-coded output to be checked against the results obtained when the test case is passed to the algo. Or there's some other predefined format for testing codes in boost library. Sorry, I haven't yet gone through most of the code in boost library.

Any further helpful links/resources are welcomed.

Thanks & Best regards, Dhruv https://github.com/chiggum

P.S. Sorry for reposting the mail. I am still waiting for a reply.

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