why do i receive an error message when i change phonebook.c in matlab to phonebook.cpp? with mex

if i change the phonebook.c example in matlab to phonebook.cpp, i receive an error message.

the error message line is 49.

classid flags = mx calloc(fields, sizeof(mx classid));

it seems that the mxcalloc function can only be used in c.

is there a way to use it in the cpp extension as well?

Answer 1

[Angelo Yeo]

The "phonebook.c" is composed of lots of C APIs for MATLAB (e.g., mxGetClassID), and you cannot change the extention to cpp to use it on the fly. You can find a cpp version of the "phonebook" example with the command below. Please find how it is different from the C version.

edit([matlabroot '/extern/examples/cpp_mex/phonebook.cpp'])