blas_sys::c::cblas_dgemm

pub unsafe extern fn cblas_dgemm(layout: CBLAS_LAYOUT, transa: CBLAS_TRANSPOSE, transb: CBLAS_TRANSPOSE, m: c_int, n: c_int, k: c_int, alpha: c_double, a: *const c_double, lda: c_int, b: *const c_double, ldb: c_int, beta: c_double, c: *mut c_double, ldc: c_int)