Matlab编码器-具有“字符开关”的功能

Question

Is something like this:

function [rv] = get_bla(m)
%#codegen
assert(isa(m,'char'));
assert(size(m, 1) >= 1);
assert(size(m, 1) <= 1024);

switch m
    case 'xyz' 
        rv = 1;
    case 'xyz1'   
        rv = 2; 
    otherwise
        error('Unexpected something');
end 

actually possible in the context of the matlab coder?

I am using:

codegen -config:dll get_bla

and get:

SWITCH expression has indeterminate size.

As 'char arrays' have to be of static size for C/C++, I presume the above is impossible or is there a work around?

Answer 1

Try using if - elseif statements instead of the switch statement.

if strcmp(m, 'xyz')
  rv = 1;
elseif strcmp(m, 'xyz1')
  rv = 2;
else
  error('unexpected');
end