{ "name": "loop_005", "op_type": "loop_005", "description": "Compute the length of many short null-terminated strings", "tags": [ "simd-loop" ], "axes": { "N": { "type": "var", "description": "Buffer length (bytes)" } }, "inputs": { "p": { "shape": [ "N" ], "dtype": "uint8" } }, "outputs": { "checksum": { "shape": null, "dtype": "uint32", "description": "Scalar checksum" } }, "reference": "import numpy as np\n\ndef run(p):\n b = p; n = len(b); i = 0; res = 0\n while i < n:\n j = i\n while j < n and int(b[j]) != 0: j += 1\n length = j - i; i = j + 1\n res = (res + 1) & 0xffffffff\n res ^= ((length % 0xffff) << 16) & 0xffffffff\n res &= 0xffffffff\n return np.uint32(res)\n", "simd_loop_meta": { "output_inplace": false, "array_pad": 0, "scratch": [], "axes_order": [] } }