Function gsl_sys::gsl_blas_sgemv

pub unsafe extern "C" fn gsl_blas_sgemv(
    TransA: CBLAS_TRANSPOSE_t, 
    alpha: f32, 
    A: *const gsl_matrix_float, 
    X: *const gsl_vector_float, 
    beta: f32, 
    Y: *mut gsl_vector_float
) -> c_int