// Copyright 2016 The Fuchsia Authors
// Copyright (c) 2008 Travis Geiselbrecht
//
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file or at
// https://opensource.org/licenses/MIT

#include <string.h>

int memcmp(const void *cs, const void *ct, size_t count) {
  const unsigned char *su1, *su2;
  int res = 0;

  for (su1 = cs, su2 = ct; 0 < count; ++su1, ++su2, count--)
    if ((res = *su1 - *su2) != 0)
      break;
  return res;
}
