Cannot create a pointer to a struct

I never needed to create a pointer in Matlab before, but now I need to create a pointer to a struct.

I tried:

exstr=struct('Value1',10,'Value2',20)

exstr_ptr=libpointer('struct',exstr)

or

exstr_ptr=libpointer('structure',exstr)

Both give an error 'Type not found'.

However, using the same syntax with int or float works fine.

What is the problem

Answer 1

[Mohammad Sami]

You need to use the function libstruct

https://www.mathworks.com/help/releases/R2020a/matlab/ref/libstruct.html

https://www.mathworks.com/help/releases/R2020a/matlab/matlab_external/working-with-structures.html

[Mikael Agopov]

This is only available in matlab2020a?

[Steven Lord]

According to the documentation page libstruct was "Introduced before R2006a" so no, it's not new in release R2020a. The links including R2020a in the URL means they will always refer to the release R2020a version of the documentation page. So if you're using an older release, in case libstruct has changed between your release and release R2020a (I don't remember if it's changed recently) you probably want to refer to your locally installed documentation.