Function gsl_sys::gsl_matrix_long_double_minmax_index

pub unsafe extern "C" fn gsl_matrix_long_double_minmax_index(
    m: *const gsl_matrix_long_double, 
    imin: *mut usize, 
    jmin: *mut usize, 
    imax: *mut usize, 
    jmax: *mut usize
)