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{"@context":"https://schema.org","@type":"QAPage","mainEntity":{"@type":"Question","name":"C2064 Error when building simple_dae on Windows","text":"
I was able to compile and run the simple_dae example on Lilnux, but when I try on my Windows machine with MSVS I get the following compiler error: C2064 \"term does not evaluate to a function taking 2 arguments\". The error is in line 500 of solver.hpp, related to the Jacobian passed to the solver. I'm relatively new to c++so I may be missing something obvious. Thank you for your help.
","upvoteCount":1,"answerCount":2,"acceptedAnswer":{"@type":"Answer","text":"
I couldn't reproduce this error (tried with Visual Studio 2022), it compiled just fine.
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The error message you posted is a bit strange. So the compiler expected a function that takes 2 arguments for some reason, but we call it providing 3 (line 500):
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jac(J, xk, state.t);
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Here jac is the Jacobian class functor, which is defined in the example source file (simple_dae.cpp), lines 101-107:
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void operator()(sparse_matrix &J, const state_vector &x, const double t)\n{\n    ...\n}
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So it does have 3 parameters.
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Just a few questions so I could reproduce the issue:
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Did you modify anything in the example source code or in the solver source code, and if yes, what are the changes?
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Is it the latest dae-cpp version from the master branch?
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What version of Visual Studio do you use?
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Thanks!
","upvoteCount":1,"url":"https://github.com/dae-cpp/dae-cpp/discussions/57#discussioncomment-13767369"}}}