sha3_512_update
ATTRIBUTE_WARN_UNUSED_RET int sha3_512_update(sha3_512_context *ctx, const u8 *input, u32 ilen);
return sha3_512_update((sha3_512_context*)hctx, chunk, chunklen);
ret = sha3_512_update(&ctx, input, ilen); EG(ret, err);
ret = sha3_512_update(&ctx, inputs[pos], ilens[pos]); EG(ret, err);