Error - 'All inputs must be constant' in MATLAB Coder
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Puneet Khurana
el 26 de Dic. de 2017
Comentada: Walter Roberson
el 27 de Dic. de 2017
I am trying to convert the function poly2trellis into C using MATLAB Coder. The problem arise when I check the issues in the Coder App and it displays the error that ' all inputs must be constant'.
function [ trellis ] = con_poly2trellis(k) %#codegen
generator_matrix=[0 0];
if k==3
generator_matrix=[5 7];
else
generator_matrix=[32 35];
end
trellis = poly2trellis(k,generator_matrix);
end
Does it mean that I can generate code for a single specific input and not based on any value passed for 'k'?
What if a generic function is required which can accept any value of 'k' and I can include multiple if-else case for generator_matrix?
Please help and suggest.
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Respuesta aceptada
Walter Roberson
el 26 de Dic. de 2017
if k==3
trellis = poly2trellis(3,[5,7]);
elseif k==4
And so on.
5 comentarios
Walter Roberson
el 27 de Dic. de 2017
It does not execute all of the function calls, it compiles all of the function calls down into the specific code needed for that one trellis variety.
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