blas_sys::cblas_dsyrk

pub unsafe extern fn cblas_dsyrk(layout: CblasLayout, uplo: CblasUplo, trans: CblasTranspose, n: c_int, k: c_int, alpha: c_double, a: *const c_double, lda: c_int, beta: c_double, c: *mut c_double, ldc: c_int)