Accessing an mxarray when using codeGen to convert Matlab DLL to mex
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Hello!
I have a *.DLL that performs some data modification on a vector:
calllib( 'DLL64', 'CPP', pX, pY)
Where pX and pY are pointers to the input and output respectively.
In order to grab the data from pY, I had initially used:
for n = 0:outLen-1
pYn = pY + n;
outVal(1+n, 1) = pYn.value;
end
When I run this through the codeGen, I had an issue with pointer increment:
??? Integers can only be combined with integers of the same class, or scalar doubles.
Turns out that pX is a mxArray. I am certain that I am reading this incorrectly. But, gave it a shot anyway:
I added a coder.extrinsic
coder.extrinsic('mxGetData');
Then I attempted to collect the data as follows:
if coder.target('MATLAB')
for n=0:outLen-1
pYn = pY + n;
outVal(1+n, 1) = pYn.value;
end
else
outVal = zeros(outLen-1, 1);
outVal = mxGetData(pY);
end
Is there any way I could increment the pointer without offending the codeGen?
It errors during codeGen. Any help is appreciated! Thank you!
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