c++ - Determinant of integer matrix with armadillo -

c++ - Determinant of integer matrix with armadillo -

i have function parameter const arma::imat & a. , apart other things want calculate determinant of input matrix a. hence did

int det = arma::det(a);

but during compilation next error:

error: no matching function phone call 'det' int det = arma::det(a);

i tried google found nil address problem. ideas please might problem?

reading doc, think have utilize conv_to<type>::from able phone call det defined imat::mat.

c++ armadillo