Function blas_sys::fortran::dsbmv_

pub unsafe extern fn dsbmv_(uplo: *const c_char,
                            n: *const c_int,
                            k: *const c_int,
                            alpha: *const c_double,
                            a: *const c_double,
                            lda: *const c_int,
                            x: *const c_double,
                            incx: *const c_int,
                            beta: *const c_double,
                            y: *mut c_double,
                            incy: *const c_int)