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[task #15109] Size of dataset as an Arithmetic operator
From: |
Mohammad Akhlaghi |
Subject: |
[task #15109] Size of dataset as an Arithmetic operator |
Date: |
Thu, 5 Mar 2020 20:19:10 -0500 (EST) |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:73.0) Gecko/20100101 Firefox/73.0 |
Follow-up Comment #8, task #15109 (project gnuastro):
Looks good! You are on the right track :-)!
About reading the contents of the `arg' argument, you can look at a few other
functions in that file for examples. For example see `arithmetic_bitwise_not'
which does bitwise operations on its input. But its input must be an integer
type, so before it starts, it first checks if the `type' element of the
`gal_data_t' structure has a floating point type or not. In your case, you
also want it to be an integer, so you can add a similar test. But besides it
type, you also want it to be a single number. If the user mistakenly gives an
array/image as the first argument, your function should crash with a clear
error message, like the other functions in `lib/arithmetic.c'.
About the crash with an unrecognized operator, I would recommend to follow the
functions from the again. You will find the place that you still haven't added
the new operator. I'll let you find it as an exersize ;-). TIP: you can use
`grep' with the fixed parts of the error message to find it.
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- [task #15109] Size of dataset as an Arithmetic operator, Sachin Kumar Singh, 2020/03/04
- [task #15109] Size of dataset as an Arithmetic operator,
Mohammad Akhlaghi <=
- [task #15109] Size of dataset as an Arithmetic operator, Mohammad Akhlaghi, 2020/03/05
- [task #15109] Size of dataset as an Arithmetic operator, Sachin Kumar Singh, 2020/03/06
- Message not available
- [task #15109] Size of dataset as an Arithmetic operator, Mohammad Akhlaghi, 2020/03/06
- [task #15109] Size of dataset as an Arithmetic operator, Sachin Kumar Singh, 2020/03/07
- [task #15109] Size of dataset as an Arithmetic operator, Mohammad Akhlaghi, 2020/03/07
- [task #15109] Size of dataset as an Arithmetic operator, Mohammad Akhlaghi, 2020/03/07
- [task #15109] Size of dataset as an Arithmetic operator, Sachin Kumar Singh, 2020/03/08
- [task #15109] Arithmetic not reading data when metadata requested, Mohammad Akhlaghi, 2020/03/08