/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "plstr.h"
#include "prtypes.h"
#include "prlog.h"
#include <string.h>

PR_IMPLEMENT(PRUint32)
PL_strlen(const char* str) {
  size_t l;

  if ((const char*)0 == str) {
    return 0;
  }

  l = strlen(str);

  /* error checking in case we have a 64-bit platform -- make sure
   * we don't have ultra long strings that overflow an int32
   */
  if (sizeof(PRUint32) < sizeof(size_t)) {
    if (l > PR_INT32_MAX) {
      PR_Assert("l <= PR_INT32_MAX", __FILE__, __LINE__);
    }
  }

  return (PRUint32)l;
}

PR_IMPLEMENT(PRUint32)
PL_strnlen(const char* str, PRUint32 max) {
  register const char* s;

  if ((const char*)0 == str) {
    return 0;
  }
  for (s = str; max && *s; s++, max--);

  return (PRUint32)(s - str);
}