YugabyteDB (2.13.0.0-b42, bfc6a6643e7399ac8a0e81d06a3ee6d6571b33ab)

// Copyright 2008 Google Inc. All Rights Reserved.

//

// The following only applies to changes made to this file as part of YugaByte development.

//

// Portions Copyright (c) YugaByte, Inc.

//

// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except

// in compliance with the License.  You may obtain a copy of the License at

//

// http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software distributed under the License

// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express

// or implied.  See the License for the specific language governing permissions and limitations

// under the License.

//

// Architecture-neutral plug compatible replacements for strtol() friends.

// See strtoint.h for details on how to use this component.

//

#include "yb/gutil/port.h"

#include "yb/gutil/strtoint.h"

// Replacement strto[u]l functions that have identical overflow and underflow

// characteristics for both ILP-32 and LP-64 platforms, including errno

// preservation for error-free calls.

int32 strto32_adapter(const char *nptr, char **endptr, int base) {

  const int saved_errno = errno;

  errno = 0;

  const auto result = strtol(nptr, endptr, base);

  if (errno == ERANGE && result == LONG_MIN) {

    return kint32min;

  } else if (errno == ERANGE && result == LONG_MAX) {

    return kint32max;

  } else if (errno == 0 && result < kint32min) {

    errno = ERANGE;

    return kint32min;

  } else if (errno == 0 && result > kint32max) {

    errno = ERANGE;

    return kint32max;

  }

  if (errno == 0)

    errno = saved_errno;

  return static_cast<int32>(result);

}

uint32 strtou32_adapter(const char *nptr, char **endptr, int base) {

  const int saved_errno = errno;

  errno = 0;

  const auto result = strtoul(nptr, endptr, base);

  if (errno == ERANGE && result == ULONG_MAX) {

    return kuint32max;

  } else if (errno == 0 && result > kuint32max) {

    errno = ERANGE;

    return kuint32max;

  }

  if (errno == 0)

    errno = saved_errno;

  return static_cast<uint32>(result);

}