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/// Json-cpp amalgamated header (http://jsoncpp.sourceforge.net/).
/// It is intended to be used with #include "json/json.h"

// //////////////////////////////////////////////////////////////////////
// Beginning of content of file: LICENSE
// //////////////////////////////////////////////////////////////////////

/*
The JsonCpp library's source code, including accompanying documentation, 
tests and demonstration applications, are licensed under the following
conditions...

Baptiste Lepilleur and The JsonCpp Authors explicitly disclaim copyright in all 
jurisdictions which recognize such a disclaimer. In such jurisdictions, 
this software is released into the Public Domain.

In jurisdictions which do not recognize Public Domain property (e.g. Germany as of
2010), this software is Copyright (c) 2007-2010 by Baptiste Lepilleur and
The JsonCpp Authors, and is released under the terms of the MIT License (see below).

In jurisdictions which recognize Public Domain property, the user of this 
software may choose to accept it either as 1) Public Domain, 2) under the 
conditions of the MIT License (see below), or 3) under the terms of dual 
Public Domain/MIT License conditions described here, as they choose.

The MIT License is about as close to Public Domain as a license can get, and is
described in clear, concise terms at:

   http://en.wikipedia.org/wiki/MIT_License
   
The full text of the MIT License follows:

========================================================================
Copyright (c) 2007-2010 Baptiste Lepilleur and The JsonCpp Authors

Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation
files (the "Software"), to deal in the Software without
restriction, including without limitation the rights to use, copy,
modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
========================================================================
(END LICENSE TEXT)

The MIT license is compatible with both the GPL and commercial
software, affording one all of the rights of Public Domain with the
minor nuisance of being required to keep the above copyright notice
and license text in the source code. Note also that by accepting the
Public Domain "license" you can re-license your copy using whatever
license you like.

*/

// //////////////////////////////////////////////////////////////////////
// End of content of file: LICENSE
// //////////////////////////////////////////////////////////////////////





#ifndef JSON_AMALGAMATED_H_INCLUDED
# define JSON_AMALGAMATED_H_INCLUDED
/// If defined, indicates that the source file is amalgamated
/// to prevent private header inclusion.
#define JSON_IS_AMALGAMATION

// //////////////////////////////////////////////////////////////////////
// Beginning of content of file: include/json/version.h
// //////////////////////////////////////////////////////////////////////

#ifndef JSON_VERSION_H_INCLUDED
#define JSON_VERSION_H_INCLUDED

// Note: version must be updated in three places when doing a release. This
// annoying process ensures that amalgamate, CMake, and meson all report the
// correct version.
// 1. /meson.build
// 2. /include/json/version.h
// 3. /CMakeLists.txt
// IMPORTANT: also update the SOVERSION!!

#define JSONCPP_VERSION_STRING "1.9.4"
#define JSONCPP_VERSION_MAJOR 1
#define JSONCPP_VERSION_MINOR 9
#define JSONCPP_VERSION_PATCH 3
#define JSONCPP_VERSION_QUALIFIER
#define JSONCPP_VERSION_HEXA                                                   \
  ((JSONCPP_VERSION_MAJOR << 24) | (JSONCPP_VERSION_MINOR << 16) |             \
   (JSONCPP_VERSION_PATCH << 8))

#ifdef JSONCPP_USING_SECURE_MEMORY
#undef JSONCPP_USING_SECURE_MEMORY
#endif
#define JSONCPP_USING_SECURE_MEMORY 0
// If non-zero, the library zeroes any memory that it has allocated before
// it frees its memory.

#endif // JSON_VERSION_H_INCLUDED

// //////////////////////////////////////////////////////////////////////
// End of content of file: include/json/version.h
// //////////////////////////////////////////////////////////////////////






// //////////////////////////////////////////////////////////////////////
// Beginning of content of file: include/json/allocator.h
// //////////////////////////////////////////////////////////////////////

// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
// Distributed under MIT license, or public domain if desired and
// recognized in your jurisdiction.
// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE

#ifndef JSON_ALLOCATOR_H_INCLUDED
#define JSON_ALLOCATOR_H_INCLUDED

#include <cstring>
#include <memory>

#pragma pack(push, 8)

namespace Json {
template <typename T> class SecureAllocator {
public:
  // Type definitions
  using value_type = T;
  using pointer = T*;
  using const_pointer = const T*;
  using reference = T&;
  using const_reference = const T&;
  using size_type = std::size_t;
  using difference_type = std::ptrdiff_t;

  /**
   * Allocate memory for N items using the standard allocator.
   */
  pointer allocate(size_type n) {
    // allocate using "global operator new"
    return static_cast<pointer>(::operator new(n * sizeof(T)));
  }

  /**
   * Release memory which was allocated for N items at pointer P.
   *
   * The memory block is filled with zeroes before being released.
   * The pointer argument is tagged as "volatile" to prevent the
   * compiler optimizing out this critical step.
   */
  void deallocate(volatile pointer p, size_type n) {
    std::memset(p, 0, n * sizeof(T));
    // free using "global operator delete"
    ::operator delete(p);
  }

  /**
   * Construct an item in-place at pointer P.
   */
  template <typename... Args> void construct(pointer p, Args&&... args) {
    // construct using "placement new" and "perfect forwarding"
    ::new (static_cast<void*>(p)) T(std::forward<Args>(args)...);
  }

  size_type max_size() const { return size_t(-1) / sizeof(T); }

  pointer address(reference x) const { return std::addressof(x); }

  const_pointer address(const_reference x) const { return std::addressof(x); }

  /**
   * Destroy an item in-place at pointer P.
   */
  void destroy(pointer p) {
    // destroy using "explicit destructor"
    p->~T();
  }

  // Boilerplate
  SecureAllocator() {}
  template <typename U> SecureAllocator(const SecureAllocator<U>&) {}
  template <typename U> struct rebind { using other = SecureAllocator<U>; };
};

template <typename T, typename U>
bool operator==(const SecureAllocator<T>&, const SecureAllocator<U>&) {
  return true;
}

template <typename T, typename U>
bool operator!=(const SecureAllocator<T>&, const SecureAllocator<U>&) {
  return false;
}

} // namespace Json

#pragma pack(pop)

#endif // JSON_ALLOCATOR_H_INCLUDED

// //////////////////////////////////////////////////////////////////////
// End of content of file: include/json/allocator.h
// //////////////////////////////////////////////////////////////////////






// //////////////////////////////////////////////////////////////////////
// Beginning of content of file: include/json/config.h
// //////////////////////////////////////////////////////////////////////

// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
// Distributed under MIT license, or public domain if desired and
// recognized in your jurisdiction.
// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE

#ifndef JSON_CONFIG_H_INCLUDED
#define JSON_CONFIG_H_INCLUDED
#include <cstddef>
#include <cstdint>
#include <istream>
#include <memory>
#include <ostream>
#include <sstream>
#include <string>
#include <type_traits>

// If non-zero, the library uses exceptions to report bad input instead of C
// assertion macros. The default is to use exceptions.
#ifndef JSON_USE_EXCEPTION
#define JSON_USE_EXCEPTION 1
#endif

// Temporary, tracked for removal with issue #982.
#ifndef JSON_USE_NULLREF
#define JSON_USE_NULLREF 1
#endif

/// If defined, indicates that the source file is amalgamated
/// to prevent private header inclusion.
/// Remarks: it is automatically defined in the generated amalgamated header.
// #define JSON_IS_AMALGAMATION

// Export macros for DLL visibility
#if defined(JSON_DLL_BUILD)
#if defined(_MSC_VER) || defined(__MINGW32__)
#define JSON_API __declspec(dllexport)
#define JSONCPP_DISABLE_DLL_INTERFACE_WARNING
#elif defined(__GNUC__) || defined(__clang__)
#define JSON_API __attribute__((visibility("default")))
#endif // if defined(_MSC_VER)

#elif defined(JSON_DLL)
#if defined(_MSC_VER) || defined(__MINGW32__)
#define JSON_API __declspec(dllimport)
#define JSONCPP_DISABLE_DLL_INTERFACE_WARNING
#endif // if defined(_MSC_VER)
#endif // ifdef JSON_DLL_BUILD

#if !defined(JSON_API)
#define JSON_API
#endif

#if defined(_MSC_VER) && _MSC_VER < 1800
#error                                                                         \
    "ERROR:  Visual Studio 12 (2013) with _MSC_VER=1800 is the oldest supported compiler with sufficient C++11 capabilities"
#endif

#if defined(_MSC_VER) && _MSC_VER < 1900
// As recommended at
// https://stackoverflow.com/questions/2915672/snprintf-and-visual-studio-2010
extern JSON_API int msvc_pre1900_c99_snprintf(char* outBuf, size_t size,
                                              const char* format, ...);
#define jsoncpp_snprintf msvc_pre1900_c99_snprintf
#else
#define jsoncpp_snprintf std::snprintf
#endif

// If JSON_NO_INT64 is defined, then Json only support C++ "int" type for
// integer
// Storages, and 64 bits integer support is disabled.
// #define JSON_NO_INT64 1

// JSONCPP_OVERRIDE is maintained for backwards compatibility of external tools.
// C++11 should be used directly in JSONCPP.
#define JSONCPP_OVERRIDE override

#ifdef __clang__
#if __has_extension(attribute_deprecated_with_message)
#define JSONCPP_DEPRECATED(message) __attribute__((deprecated(message)))
#endif
#elif defined(__GNUC__) // not clang (gcc comes later since clang emulates gcc)
#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5))
#define JSONCPP_DEPRECATED(message) __attribute__((deprecated(message)))
#elif (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1))
#define JSONCPP_DEPRECATED(message) __attribute__((__deprecated__))
#endif                  // GNUC version
#elif defined(_MSC_VER) // MSVC (after clang because clang on Windows emulates
                        // MSVC)
#define JSONCPP_DEPRECATED(message) __declspec(deprecated(message))
#endif // __clang__ || __GNUC__ || _MSC_VER

#if !defined(JSONCPP_DEPRECATED)
#define JSONCPP_DEPRECATED(message)
#endif // if !defined(JSONCPP_DEPRECATED)

#if defined(__clang__) || (defined(__GNUC__) && (__GNUC__ >= 6))
#define JSON_USE_INT64_DOUBLE_CONVERSION 1
#endif

#if !defined(JSON_IS_AMALGAMATION)

#include "allocator.h"
#include "version.h"

#endif // if !defined(JSON_IS_AMALGAMATION)

namespace Json {
using Int = int;
using UInt = unsigned int;
#if defined(JSON_NO_INT64)
using LargestInt = int;
using LargestUInt = unsigned int;
#undef JSON_HAS_INT64
#else                 // if defined(JSON_NO_INT64)
// For Microsoft Visual use specific types as long long is not supported
#if defined(_MSC_VER) // Microsoft Visual Studio
using Int64 = __int64;
using UInt64 = unsigned __int64;
#else                 // if defined(_MSC_VER) // Other platforms, use long long
using Int64 = int64_t;
using UInt64 = uint64_t;
#endif                // if defined(_MSC_VER)
using LargestInt = Int64;
using LargestUInt = UInt64;
#define JSON_HAS_INT64
#endif // if defined(JSON_NO_INT64)

template <typename T>
using Allocator =
    typename std::conditional<JSONCPP_USING_SECURE_MEMORY, SecureAllocator<T>,
                              std::allocator<T>>::type;
using String = std::basic_string<char, std::char_traits<char>, Allocator<char>>;
using IStringStream =
    std::basic_istringstream<String::value_type, String::traits_type,
                             String::allocator_type>;
using OStringStream =
    std::basic_ostringstream<String::value_type, String::traits_type,
                             String::allocator_type>;
using IStream = std::istream;
using OStream = std::ostream;
} // namespace Json

// Legacy names (formerly macros).
using JSONCPP_STRING = Json::String;
using JSONCPP_ISTRINGSTREAM = Json::IStringStream;
using JSONCPP_OSTRINGSTREAM = Json::OStringStream;
using JSONCPP_ISTREAM = Json::IStream;
using JSONCPP_OSTREAM = Json::OStream;

#endif // JSON_CONFIG_H_INCLUDED

// //////////////////////////////////////////////////////////////////////
// End of content of file: include/json/config.h
// //////////////////////////////////////////////////////////////////////






// //////////////////////////////////////////////////////////////////////
// Beginning of content of file: include/json/forwards.h
// //////////////////////////////////////////////////////////////////////

// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
// Distributed under MIT license, or public domain if desired and
// recognized in your jurisdiction.
// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE

#ifndef JSON_FORWARDS_H_INCLUDED
#define JSON_FORWARDS_H_INCLUDED

#if !defined(JSON_IS_AMALGAMATION)
#include "config.h"
#endif // if !defined(JSON_IS_AMALGAMATION)

namespace Json {

// writer.h
class StreamWriter;
class StreamWriterBuilder;
class Writer;
class FastWriter;
class StyledWriter;
class StyledStreamWriter;

// reader.h
class Reader;
class CharReader;
class CharReaderBuilder;

// json_features.h
class Features;

// value.h
using ArrayIndex = unsigned int;
class StaticString;
class Path;
class PathArgument;
class Value;
class ValueIteratorBase;
class ValueIterator;
class ValueConstIterator;

} // namespace Json

#endif // JSON_FORWARDS_H_INCLUDED

// //////////////////////////////////////////////////////////////////////
// End of content of file: include/json/forwards.h
// //////////////////////////////////////////////////////////////////////






// //////////////////////////////////////////////////////////////////////
// Beginning of content of file: include/json/json_features.h
// //////////////////////////////////////////////////////////////////////

// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
// Distributed under MIT license, or public domain if desired and
// recognized in your jurisdiction.
// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE

#ifndef JSON_FEATURES_H_INCLUDED
#define JSON_FEATURES_H_INCLUDED

#if !defined(JSON_IS_AMALGAMATION)
#include "forwards.h"
#endif // if !defined(JSON_IS_AMALGAMATION)

#pragma pack(push, 8)

namespace Json {

/** \brief Configuration passed to reader and writer.
 * This configuration object can be used to force the Reader or Writer
 * to behave in a standard conforming way.
 */
class JSON_API Features {
public:
  /** \brief A configuration that allows all features and assumes all strings
   * are UTF-8.
   * - C & C++ comments are allowed
   * - Root object can be any JSON value
   * - Assumes Value strings are encoded in UTF-8
   */
  static Features all();

  /** \brief A configuration that is strictly compatible with the JSON
   * specification.
   * - Comments are forbidden.
   * - Root object must be either an array or an object value.
   * - Assumes Value strings are encoded in UTF-8
   */
  static Features strictMode();

  /** \brief Initialize the configuration like JsonConfig::allFeatures;
   */
  Features();

  /// \c true if comments are allowed. Default: \c true.
  bool allowComments_{true};

  /// \c true if root must be either an array or an object value. Default: \c
  /// false.
  bool strictRoot_{false};

  /// \c true if dropped null placeholders are allowed. Default: \c false.
  bool allowDroppedNullPlaceholders_{false};

  /// \c true if numeric object key are allowed. Default: \c false.
  bool allowNumericKeys_{false};
};

} // namespace Json

#pragma pack(pop)

#endif // JSON_FEATURES_H_INCLUDED

// //////////////////////////////////////////////////////////////////////
// End of content of file: include/json/json_features.h
// //////////////////////////////////////////////////////////////////////






// //////////////////////////////////////////////////////////////////////
// Beginning of content of file: include/json/value.h
// //////////////////////////////////////////////////////////////////////

// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
// Distributed under MIT license, or public domain if desired and
// recognized in your jurisdiction.
// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE

#ifndef JSON_H_INCLUDED
#define JSON_H_INCLUDED

#if !defined(JSON_IS_AMALGAMATION)
#include "forwards.h"
#endif // if !defined(JSON_IS_AMALGAMATION)

// Conditional NORETURN attribute on the throw functions would:
// a) suppress false positives from static code analysis
// b) possibly improve optimization opportunities.
#if !defined(JSONCPP_NORETURN)
#if defined(_MSC_VER) && _MSC_VER == 1800
#define JSONCPP_NORETURN __declspec(noreturn)
#else
#define JSONCPP_NORETURN [[noreturn]]
#endif
#endif

// Support for '= delete' with template declarations was a late addition
// to the c++11 standard and is rejected by clang 3.8 and Apple clang 8.2
// even though these declare themselves to be c++11 compilers.
#if !defined(JSONCPP_TEMPLATE_DELETE)
#if defined(__clang__) && defined(__apple_build_version__)
#if __apple_build_version__ <= 8000042
#define JSONCPP_TEMPLATE_DELETE
#endif
#elif defined(__clang__)
#if __clang_major__ == 3 && __clang_minor__ <= 8
#define JSONCPP_TEMPLATE_DELETE
#endif
#endif
#if !defined(JSONCPP_TEMPLATE_DELETE)
#define JSONCPP_TEMPLATE_DELETE = delete
#endif
#endif

#include <array>
#include <exception>
#include <map>
#include <memory>
#include <string>
#include <vector>

// Disable warning C4251: <data member>: <type> needs to have dll-interface to
// be used by...
#if defined(JSONCPP_DISABLE_DLL_INTERFACE_WARNING)
#pragma warning(push)
#pragma warning(disable : 4251)
#endif // if defined(JSONCPP_DISABLE_DLL_INTERFACE_WARNING)

#pragma pack(push, 8)

/** \brief JSON (JavaScript Object Notation).
 */
namespace Json {

#if JSON_USE_EXCEPTION
/** Base class for all exceptions we throw.
 *
 * We use nothing but these internally. Of course, STL can throw others.
 */
class JSON_API Exception : public std::exception {
public:
  Exception(String msg);
  ~Exception() noexcept override;
  char const* what() const noexcept override;

protected:
  String msg_;
};

/** Exceptions which the user cannot easily avoid.
 *
 * E.g. out-of-memory (when we use malloc), stack-overflow, malicious input
 *
 * \remark derived from Json::Exception
 */
class JSON_API RuntimeError : public Exception {
public:
  RuntimeError(String const& msg);
};

/** Exceptions thrown by JSON_ASSERT/JSON_FAIL macros.
 *
 * These are precondition-violations (user bugs) and internal errors (our bugs).
 *
 * \remark derived from Json::Exception
 */
class JSON_API LogicError : public Exception {
public:
  LogicError(String const& msg);
};
#endif

/// used internally
JSONCPP_NORETURN void throwRuntimeError(String const& msg);
/// used internally
JSONCPP_NORETURN void throwLogicError(String const& msg);

/** \brief Type of the value held by a Value object.
 */
enum ValueType {
  nullValue = 0, ///< 'null' value
  intValue,      ///< signed integer value
  uintValue,     ///< unsigned integer value
  realValue,     ///< double value
  stringValue,   ///< UTF-8 string value
  booleanValue,  ///< bool value
  arrayValue,    ///< array value (ordered list)
  objectValue    ///< object value (collection of name/value pairs).
};

enum CommentPlacement {
  commentBefore = 0,      ///< a comment placed on the line before a value
  commentAfterOnSameLine, ///< a comment just after a value on the same line
  commentAfter, ///< a comment on the line after a value (only make sense for
  /// root value)
  numberOfCommentPlacement
};

/** \brief Type of precision for formatting of real values.
 */
enum PrecisionType {
  significantDigits = 0, ///< we set max number of significant digits in string
  decimalPlaces          ///< we set max number of digits after "." in string
};

/** \brief Lightweight wrapper to tag static string.
 *
 * Value constructor and objectValue member assignment takes advantage of the
 * StaticString and avoid the cost of string duplication when storing the
 * string or the member name.
 *
 * Example of usage:
 * \code
 * Json::Value aValue( StaticString("some text") );
 * Json::Value object;
 * static const StaticString code("code");
 * object[code] = 1234;
 * \endcode
 */
class JSON_API StaticString {
public:
  explicit StaticString(const char* czstring) : c_str_(czstring) {}

  operator const char*() const { return c_str_; }

  const char* c_str() const { return c_str_; }

private:
  const char* c_str_;
};

/** \brief Represents a <a HREF="http://www.json.org">JSON</a> value.
 *
 * This class is a discriminated union wrapper that can represents a:
 * - signed integer [range: Value::minInt - Value::maxInt]
 * - unsigned integer (range: 0 - Value::maxUInt)
 * - double
 * - UTF-8 string
 * - boolean
 * - 'null'
 * - an ordered list of Value
 * - collection of name/value pairs (javascript object)
 *
 * The type of the held value is represented by a #ValueType and
 * can be obtained using type().
 *
 * Values of an #objectValue or #arrayValue can be accessed using operator[]()
 * methods.
 * Non-const methods will automatically create the a #nullValue element
 * if it does not exist.
 * The sequence of an #arrayValue will be automatically resized and initialized
 * with #nullValue. resize() can be used to enlarge or truncate an #arrayValue.
 *
 * The get() methods can be used to obtain default value in the case the
 * required element does not exist.
 *
 * It is possible to iterate over the list of member keys of an object using
 * the getMemberNames() method.
 *
 * \note #Value string-length fit in size_t, but keys must be < 2^30.
 * (The reason is an implementation detail.) A #CharReader will raise an
 * exception if a bound is exceeded to avoid security holes in your app,
 * but the Value API does *not* check bounds. That is the responsibility
 * of the caller.
 */
class JSON_API Value {
  friend class ValueIteratorBase;

public:
  using Members = std::vector<String>;
  using iterator = ValueIterator;
  using const_iterator = ValueConstIterator;
  using UInt = Json::UInt;
  using Int = Json::Int;
#if defined(JSON_HAS_INT64)
  using UInt64 = Json::UInt64;
  using Int64 = Json::Int64;
#endif // defined(JSON_HAS_INT64)
  using LargestInt = Json::LargestInt;
  using LargestUInt = Json::LargestUInt;
  using ArrayIndex = Json::ArrayIndex;

  // Required for boost integration, e. g. BOOST_TEST
  using value_type = std::string;

#if JSON_USE_NULLREF
  // Binary compatibility kludges, do not use.
  static const Value& null;
  static const Value& nullRef;
#endif

  // null and nullRef are deprecated, use this instead.
  static Value const& nullSingleton();

  /// Minimum signed integer value that can be stored in a Json::Value.
  static constexpr LargestInt minLargestInt =
      LargestInt(~(LargestUInt(-1) / 2));
  /// Maximum signed integer value that can be stored in a Json::Value.
  static constexpr LargestInt maxLargestInt = LargestInt(LargestUInt(-1) / 2);
  /// Maximum unsigned integer value that can be stored in a Json::Value.
  static constexpr LargestUInt maxLargestUInt = LargestUInt(-1);

  /// Minimum signed int value that can be stored in a Json::Value.
  static constexpr Int minInt = Int(~(UInt(-1) / 2));
  /// Maximum signed int value that can be stored in a Json::Value.
  static constexpr Int maxInt = Int(UInt(-1) / 2);
  /// Maximum unsigned int value that can be stored in a Json::Value.
  static constexpr UInt maxUInt = UInt(-1);

#if defined(JSON_HAS_INT64)
  /// Minimum signed 64 bits int value that can be stored in a Json::Value.
  static constexpr Int64 minInt64 = Int64(~(UInt64(-1) / 2));
  /// Maximum signed 64 bits int value that can be stored in a Json::Value.
  static constexpr Int64 maxInt64 = Int64(UInt64(-1) / 2);
  /// Maximum unsigned 64 bits int value that can be stored in a Json::Value.
  static constexpr UInt64 maxUInt64 = UInt64(-1);
#endif // defined(JSON_HAS_INT64)
  /// Default precision for real value for string representation.
  static constexpr UInt defaultRealPrecision = 17;
  // The constant is hard-coded because some compiler have trouble
  // converting Value::maxUInt64 to a double correctly (AIX/xlC).
  // Assumes that UInt64 is a 64 bits integer.
  static constexpr double maxUInt64AsDouble = 18446744073709551615.0;
// Workaround for bug in the NVIDIAs CUDA 9.1 nvcc compiler
// when using gcc and clang backend compilers.  CZString
// cannot be defined as private.  See issue #486
#ifdef __NVCC__
public:
#else
private:
#endif
#ifndef JSONCPP_DOC_EXCLUDE_IMPLEMENTATION
  class CZString {
  public:
    enum DuplicationPolicy { noDuplication = 0, duplicate, duplicateOnCopy };
    CZString(ArrayIndex index);
    CZString(char const* str, unsigned length, DuplicationPolicy allocate);
    CZString(CZString const& other);
    CZString(CZString&& other);
    ~CZString();
    CZString& operator=(const CZString& other);
    CZString& operator=(CZString&& other);

    bool operator<(CZString const& other) const;
    bool operator==(CZString const& other) const;
    ArrayIndex index() const;
    // const char* c_str() const; ///< \deprecated
    char const* data() const;
    unsigned length() const;
    bool isStaticString() const;

  private:
    void swap(CZString& other);

    struct StringStorage {
      unsigned policy_ : 2;
      unsigned length_ : 30; // 1GB max
    };

    char const* cstr_; // actually, a prefixed string, unless policy is noDup
    union {
      ArrayIndex index_;
      StringStorage storage_;
    };
  };

public:
  typedef std::map<CZString, Value> ObjectValues;
#endif // ifndef JSONCPP_DOC_EXCLUDE_IMPLEMENTATION

public:
  /**
   * \brief Create a default Value of the given type.
   *
   * This is a very useful constructor.
   * To create an empty array, pass arrayValue.
   * To create an empty object, pass objectValue.
   * Another Value can then be set to this one by assignment.
   * This is useful since clear() and resize() will not alter types.
   *
   * Examples:
   *   \code
   *   Json::Value null_value; // null
   *   Json::Value arr_value(Json::arrayValue); // []
   *   Json::Value obj_value(Json::objectValue); // {}
   *   \endcode
   */
  Value(ValueType type = nullValue);
  Value(Int value);
  Value(UInt value);
#if defined(JSON_HAS_INT64)
  Value(Int64 value);
  Value(UInt64 value);
#endif // if defined(JSON_HAS_INT64)
  Value(double value);
  Value(const char* value); ///< Copy til first 0. (NULL causes to seg-fault.)
  Value(const char* begin, const char* end); ///< Copy all, incl zeroes.
  /**
   * \brief Constructs a value from a static string.
   *
   * Like other value string constructor but do not duplicate the string for
   * internal storage. The given string must remain alive after the call to
   * this constructor.
   *
   * \note This works only for null-terminated strings. (We cannot change the
   * size of this class, so we have nowhere to store the length, which might be
   * computed later for various operations.)
   *
   * Example of usage:
   *   \code
   *   static StaticString foo("some text");
   *   Json::Value aValue(foo);
   *   \endcode
   */
  Value(const StaticString& value);
  Value(const String& value);
  Value(bool value);
  Value(std::nullptr_t ptr) = delete;
  Value(const Value& other);
  Value(Value&& other);
  ~Value();

  /// \note Overwrite existing comments. To preserve comments, use
  /// #swapPayload().
  Value& operator=(const Value& other);
  Value& operator=(Value&& other);

  /// Swap everything.
  void swap(Value& other);
  /// Swap values but leave comments and source offsets in place.
  void swapPayload(Value& other);

  /// copy everything.
  void copy(const Value& other);
  /// copy values but leave comments and source offsets in place.
  void copyPayload(const Value& other);