//

// NumberFormatter.h

//

// Library: Foundation

// Package: Core

// Module:  NumberFormatter

//

// Definition of the NumberFormatter class.

//

// Copyright (c) 2004-2008, Applied Informatics Software Engineering GmbH.

// and Contributors.

//

// SPDX-License-Identifier: BSL-1.0

//

#ifndef Foundation_NumberFormatter_INCLUDED

#define Foundation_NumberFormatter_INCLUDED

#include "Poco/Foundation.h"

#include "Poco/NumericString.h"

namespace Poco {

class Foundation_API NumberFormatter

  /// The NumberFormatter class provides static methods

  /// for formatting numeric values into strings.

  ///

  /// There are two kind of static member functions:

  ///    * format* functions return a std::string containing

  ///      the formatted value.

  ///    * append* functions append the formatted value to

  ///      an existing string.

{

public:

  enum BoolFormat

  {

    FMT_TRUE_FALSE,

    FMT_YES_NO,

    FMT_ON_OFF

  };

  static const unsigned NF_MAX_INT_STRING_LEN = 32; // increase for 64-bit binary formatting support

  static const unsigned NF_MAX_FLT_STRING_LEN = POCO_MAX_FLT_STRING_LEN;

  static std::string format(int value);

    /// Formats an integer value in decimal notation.

  static std::string format(int value, int width);

    /// Formats an integer value in decimal notation,

    /// right justified in a field having at least

    /// the specified width.

  static std::string format0(int value, int width);

    /// Formats an integer value in decimal notation,

    /// right justified and zero-padded in a field

    /// having at least the specified width.

  static std::string formatHex(int value, bool prefix = false);

    /// Formats an int value in hexadecimal notation.

    /// If prefix is true, "0x" prefix is prepended to the

    /// resulting string.

    /// The value is treated as unsigned.

  static std::string formatHex(int value, int width, bool prefix = false);

    /// Formats a int value in hexadecimal notation,

    /// right justified and zero-padded in

    /// a field having at least the specified width.

    /// If prefix is true, "0x" prefix is prepended to the

    /// resulting string.

    /// The value is treated as unsigned.

  static std::string format(unsigned value);

    /// Formats an unsigned int value in decimal notation.

  static std::string format(unsigned value, int width);

    /// Formats an unsigned long int in decimal notation,

    /// right justified in a field having at least the

    /// specified width.

  static std::string format0(unsigned int value, int width);

    /// Formats an unsigned int value in decimal notation,

    /// right justified and zero-padded in a field having at

    /// least the specified width.

  static std::string formatHex(unsigned value, bool prefix = false);

    /// Formats an unsigned int value in hexadecimal notation.

    /// If prefix is true, "0x" prefix is prepended to the

    /// resulting string.

  static std::string formatHex(unsigned value, int width, bool prefix = false);

    /// Formats a int value in hexadecimal notation,

    /// right justified and zero-padded in

    /// a field having at least the specified width.

    /// If prefix is true, "0x" prefix is prepended to the

    /// resulting string.

  static std::string format(long value);

    /// Formats a long value in decimal notation.

  static std::string format(long value, int width);

    /// Formats a long value in decimal notation,

    /// right justified in a field having at least the

    /// specified width.

  static std::string format0(long value, int width);

    /// Formats a long value in decimal notation,

    /// right justified and zero-padded in a field

    /// having at least the specified width.

  static std::string formatHex(long value, bool prefix = false);

    /// Formats an unsigned long value in hexadecimal notation.

    /// If prefix is true, "0x" prefix is prepended to the

    /// resulting string.

    /// The value is treated as unsigned.

  static std::string formatHex(long value, int width, bool prefix = false);

    /// Formats an unsigned long value in hexadecimal notation,

    /// right justified and zero-padded in a field having at least the

    /// specified width.

    /// If prefix is true, "0x" prefix is prepended to the

    /// resulting string.

    /// The value is treated as unsigned.

  static std::string format(unsigned long value);

    /// Formats an unsigned long value in decimal notation.

  static std::string format(unsigned long value, int width);

    /// Formats an unsigned long value in decimal notation,

    /// right justified in a field having at least the specified

    /// width.

  static std::string format0(unsigned long value, int width);

    /// Formats an unsigned long value in decimal notation,

    /// right justified and zero-padded

    /// in a field having at least the specified width.

  static std::string formatHex(unsigned long value, bool prefix = false);

    /// Formats an unsigned long value in hexadecimal notation.

    /// If prefix is true, "0x" prefix is prepended to the

    /// resulting string.

  static std::string formatHex(unsigned long value, int width, bool prefix = false);

    /// Formats an unsigned long value in hexadecimal notation,

    /// right justified and zero-padded in a field having at least the

    /// specified width.

    /// If prefix is true, "0x" prefix is prepended to the

    /// resulting string.

#ifdef POCO_HAVE_INT64

#ifdef POCO_INT64_IS_LONG

  static std::string format(long long value);

    /// Formats a 64-bit integer value in decimal notation.

  static std::string format(long long value, int width);

    /// Formats a 64-bit integer value in decimal notation,

    /// right justified in a field having at least the specified width.

  static std::string format0(long long value, int width);

    /// Formats a 64-bit integer value in decimal notation,

    /// right justified and zero-padded in a field having at least

    /// the specified width.

  static std::string formatHex(long long value, bool prefix = false);

    /// Formats a 64-bit integer value in hexadecimal notation.

    /// If prefix is true, "0x" prefix is prepended to the

    /// resulting string.

    /// The value is treated as unsigned.

  static std::string formatHex(long long value, int width, bool prefix = false);

    /// Formats a 64-bit integer value in hexadecimal notation,

    /// right justified and zero-padded in a field having at least

    /// the specified width.

    /// The value is treated as unsigned.

    /// If prefix is true, "0x" prefix is prepended to the resulting string.

  static std::string format(unsigned long long value);

    /// Formats an unsigned 64-bit integer value in decimal notation.

  static std::string format(unsigned long long value, int width);

    /// Formats an unsigned 64-bit integer value in decimal notation,

    /// right justified in a field having at least the specified width.

  static std::string format0(unsigned long long value, int width);

    /// Formats an unsigned 64-bit integer value in decimal notation,

    /// right justified and zero-padded in a field having at least the

    /// specified width.

  static std::string formatHex(unsigned long long value, bool prefix = false);

    /// Formats a 64-bit integer value in hexadecimal notation.

    /// If prefix is true, "0x" prefix is prepended to the

    /// resulting string.

  static std::string formatHex(unsigned long long value, int width, bool prefix = false);

    /// Formats a 64-bit integer value in hexadecimal notation,

    /// right justified and zero-padded in a field having at least

    /// the specified width. If prefix is true, "0x" prefix is

    /// prepended to the resulting string.

#else // ifndef POCO_INT64_IS_LONG

  static std::string format(Int64 value);

    /// Formats a 64-bit integer value in decimal notation.

  static std::string format(Int64 value, int width);

    /// Formats a 64-bit integer value in decimal notation,

    /// right justified in a field having at least the specified width.

  static std::string format0(Int64 value, int width);

    /// Formats a 64-bit integer value in decimal notation,

    /// right justified and zero-padded in a field having at least

    /// the specified width.

  static std::string formatHex(Int64 value, bool prefix = false);

    /// Formats a 64-bit integer value in hexadecimal notation.

    /// If prefix is true, "0x" prefix is prepended to the

    /// resulting string.

    /// The value is treated as unsigned.

  static std::string formatHex(Int64 value, int width, bool prefix = false);

    /// Formats a 64-bit integer value in hexadecimal notation,

    /// right justified and zero-padded in a field having at least

    /// the specified width.

    /// The value is treated as unsigned.

    /// If prefix is true, "0x" prefix is prepended to the resulting string.

  static std::string format(UInt64 value);

    /// Formats an unsigned 64-bit integer value in decimal notation.

  static std::string format(UInt64 value, int width);

    /// Formats an unsigned 64-bit integer value in decimal notation,

    /// right justified in a field having at least the specified width.

  static std::string format0(UInt64 value, int width);

    /// Formats an unsigned 64-bit integer value in decimal notation,

    /// right justified and zero-padded in a field having at least the

    /// specified width.

  static std::string formatHex(UInt64 value, bool prefix = false);

    /// Formats a 64-bit integer value in hexadecimal notation.

    /// If prefix is true, "0x" prefix is prepended to the

    /// resulting string.

  static std::string formatHex(UInt64 value, int width, bool prefix = false);

    /// Formats a 64-bit integer value in hexadecimal notation,

    /// right justified and zero-padded in a field having at least

    /// the specified width. If prefix is true, "0x" prefix is

    /// prepended to the resulting string.

#endif // ifdef POCO_INT64_IS_LONG

#endif // ifdef POCO_HAVE_INT64

  static std::string format(float value);

    /// Formats a float value in decimal floating-point notation,

    /// according to std::printf's %g format with a precision of 8 fractional digits.

  static std::string format(float value, int precision);

    /// Formats a double value in decimal floating-point notation,

    /// according to std::printf's %f format with the given precision.

  static std::string format(float value, int width, int precision);

    /// Formats a double value in decimal floating-point notation,

    /// right justified in a field of the specified width,

    /// with the number of fractional digits given in precision.

  static std::string format(double value);

    /// Formats a double value in decimal floating-point notation,

    /// according to std::printf's %g format with a precision of 16 fractional digits.

  static std::string format(double value, int precision);

    /// Formats a double value in decimal floating-point notation,

    /// according to std::printf's %f format with the given precision.

  static std::string format(double value, int width, int precision);

    /// Formats a double value in decimal floating-point notation,

    /// right justified in a field of the specified width,

    /// with the number of fractional digits given in precision.

  static std::string format(const void* ptr);

    /// Formats a pointer in an eight (32-bit architectures) or

    /// sixteen (64-bit architectures) characters wide

    /// field in hexadecimal notation.

  static std::string format(bool value, BoolFormat format = FMT_TRUE_FALSE);

    /// Formats a bool value in decimal/text notation,

    /// according to format parameter.

  static void append(std::string& str, int value);

    /// Formats an integer value in decimal notation.

  static void append(std::string& str, int value, int width);

    /// Formats an integer value in decimal notation,

    /// right justified in a field having at least

    /// the specified width.

  static void append0(std::string& str, int value, int width);

    /// Formats an integer value in decimal notation,

    /// right justified and zero-padded in a field

    /// having at least the specified width.

  static void appendHex(std::string& str, int value);

    /// Formats an int value in hexadecimal notation.

    /// The value is treated as unsigned.

  static void appendHex(std::string& str, int value, int width);

    /// Formats a int value in hexadecimal notation,

    /// right justified and zero-padded in

    /// a field having at least the specified width.

    /// The value is treated as unsigned.

  static void append(std::string& str, unsigned value);

    /// Formats an unsigned int value in decimal notation.

  static void append(std::string& str, unsigned value, int width);

    /// Formats an unsigned long int in decimal notation,

    /// right justified in a field having at least the

    /// specified width.

  static void append0(std::string& str, unsigned int value, int width);

    /// Formats an unsigned int value in decimal notation,

    /// right justified and zero-padded in a field having at

    /// least the specified width.

  static void appendHex(std::string& str, unsigned value);

    /// Formats an unsigned int value in hexadecimal notation.

  static void appendHex(std::string& str, unsigned value, int width);

    /// Formats a int value in hexadecimal notation,

    /// right justified and zero-padded in

    /// a field having at least the specified width.

  static void append(std::string& str, long value);

    /// Formats a long value in decimal notation.

  static void append(std::string& str, long value, int width);

    /// Formats a long value in decimal notation,

    /// right justified in a field having at least the

    /// specified width.

  static void append0(std::string& str, long value, int width);

    /// Formats a long value in decimal notation,

    /// right justified and zero-padded in a field

    /// having at least the specified width.

  static void appendHex(std::string& str, long value);

    /// Formats an unsigned long value in hexadecimal notation.

    /// The value is treated as unsigned.

  static void appendHex(std::string& str, long value, int width);

    /// Formats an unsigned long value in hexadecimal notation,

    /// right justified and zero-padded in a field having at least the

    /// specified width.

    /// The value is treated as unsigned.

  static void append(std::string& str, unsigned long value);

    /// Formats an unsigned long value in decimal notation.

  static void append(std::string& str, unsigned long value, int width);

    /// Formats an unsigned long value in decimal notation,

    /// right justified in a field having at least the specified

    /// width.

  static void append0(std::string& str, unsigned long value, int width);

    /// Formats an unsigned long value in decimal notation,

    /// right justified and zero-padded

    /// in a field having at least the specified width.

  static void appendHex(std::string& str, unsigned long value);

    /// Formats an unsigned long value in hexadecimal notation.

  static void appendHex(std::string& str, unsigned long value, int width);

    /// Formats an unsigned long value in hexadecimal notation,

    /// right justified and zero-padded in a field having at least the

    /// specified width.

#ifdef POCO_HAVE_INT64

#ifdef POCO_INT64_IS_LONG

  static void append(std::string& str, long long value);

    /// Formats a 64-bit integer value in decimal notation.

  static void append(std::string& str, long long value, int width);

    /// Formats a 64-bit integer value in decimal notation,

    /// right justified in a field having at least the specified width.

  static void append0(std::string& str, long long value, int width);

    /// Formats a 64-bit integer value in decimal notation,

    /// right justified and zero-padded in a field having at least

    /// the specified width.

  static void appendHex(std::string& str, long long value);

    /// Formats a 64-bit integer value in hexadecimal notation.

    /// The value is treated as unsigned.

  static void appendHex(std::string& str, long long value, int width);

    /// Formats a 64-bit integer value in hexadecimal notation,

    /// right justified and zero-padded in a field having at least

    /// the specified width.

    /// The value is treated as unsigned.

  static void append(std::string& str, unsigned long long value);

    /// Formats an unsigned 64-bit integer value in decimal notation.

  static void append(std::string& str, unsigned long long value, int width);

    /// Formats an unsigned 64-bit integer value in decimal notation,

    /// right justified in a field having at least the specified width.

  static void append0(std::string& str, unsigned long long value, int width);

    /// Formats an unsigned 64-bit integer value in decimal notation,

    /// right justified and zero-padded in a field having at least the

    /// specified width.

  static void appendHex(std::string& str, unsigned long long value);

    /// Formats a 64-bit integer value in hexadecimal notation.

  static void appendHex(std::string& str, unsigned long long value, int width);

    /// Formats a 64-bit integer value in hexadecimal notation,

    /// right justified and zero-padded in a field having at least

    /// the specified width.

#else // ifndef POCO_INT64_IS_LONG

  static void append(std::string& str, Int64 value);

    /// Formats a 64-bit integer value in decimal notation.

  static void append(std::string& str, Int64 value, int width);

    /// Formats a 64-bit integer value in decimal notation,

    /// right justified in a field having at least the specified width.

  static void append0(std::string& str, Int64 value, int width);

    /// Formats a 64-bit integer value in decimal notation,

    /// right justified and zero-padded in a field having at least

    /// the specified width.

  static void appendHex(std::string& str, Int64 value);

    /// Formats a 64-bit integer value in hexadecimal notation.

    /// The value is treated as unsigned.

  static void appendHex(std::string& str, Int64 value, int width);

    /// Formats a 64-bit integer value in hexadecimal notation,

    /// right justified and zero-padded in a field having at least

    /// the specified width.

    /// The value is treated as unsigned.

  static void append(std::string& str, UInt64 value);

    /// Formats an unsigned 64-bit integer value in decimal notation.

  static void append(std::string& str, UInt64 value, int width);

    /// Formats an unsigned 64-bit integer value in decimal notation,

    /// right justified in a field having at least the specified width.

  static void append0(std::string& str, UInt64 value, int width);

    /// Formats an unsigned 64-bit integer value in decimal notation,

    /// right justified and zero-padded in a field having at least the

    /// specified width.

  static void appendHex(std::string& str, UInt64 value);

    /// Formats a 64-bit integer value in hexadecimal notation.

  static void appendHex(std::string& str, UInt64 value, int width);

    /// Formats a 64-bit integer value in hexadecimal notation,

    /// right justified and zero-padded in a field having at least

    /// the specified width.

#endif // ifdef POCO_INT64_IS_LONG

#endif // ifdef POCO_HAVE_INT64

  static void append(std::string& str, float value);

    /// Formats a float value in decimal floating-point notation,

    /// according to std::printf's %g format with a precision of 8 fractional digits.

  static void append(std::string& str, float value, int precision);

    /// Formats a double value in decimal floating-point notation,

    /// according to std::printf's %f format with the given precision.

  static void append(std::string& str, float value, int width, int precision);

    /// Formats a double value in decimal floating-point notation,

    /// right justified in a field of the specified width,

    /// with the number of fractional digits given in precision.

  static void append(std::string& str, double value);

    /// Formats a double value in decimal floating-point notation,

    /// according to std::printf's %g format with a precision of 16 fractional digits.

  static void append(std::string& str, double value, int precision);

    /// Formats a double value in decimal floating-point notation,

    /// according to std::printf's %f format with the given precision.

  static void append(std::string& str, double value, int width, int precision);

    /// Formats a double value in decimal floating-point notation,

    /// right justified in a field of the specified width,

    /// with the number of fractional digits given in precision.

  static void append(std::string& str, const void* ptr);

    /// Formats a pointer in an eight (32-bit architectures) or

    /// sixteen (64-bit architectures) characters wide

    /// field in hexadecimal notation.

private:

};

//

// inlines

//

inline std::string NumberFormatter::format(int value)

{

  std::string result;

  intToStr(value, 10, result);

  return result;

}

inline std::string NumberFormatter::format(int value, int width)

{

  std::string result;

  intToStr(value, 10, result, false, width, ' ');

  return result;

}

inline std::string NumberFormatter::format0(int value, int width)

{

  std::string result;

  intToStr(value, 10, result, false, width, '0');

  return result;

}

inline std::string NumberFormatter::formatHex(int value, bool prefix)

{

  std::string result;

  uIntToStr(static_cast<unsigned int>(value), 0x10, result, prefix);

  return result;

}

inline std::string NumberFormatter::formatHex(int value, int width, bool prefix)

{

  std::string result;

  uIntToStr(static_cast<unsigned int>(value), 0x10, result, prefix, width, '0');

  return result;

}

inline std::string NumberFormatter::format(unsigned value)

{

  std::string result;

  uIntToStr(value, 10, result);

  return result;

}

inline std::string NumberFormatter::format(unsigned value, int width)

{

  std::string result;

  uIntToStr(value, 10, result, false, width, ' ');

  return result;

}

inline std::string NumberFormatter::format0(unsigned int value, int width)

{

  std::string result;

  uIntToStr(value, 10, result, false, width, '0');

  return result;

}

inline std::string NumberFormatter::formatHex(unsigned value, bool prefix)

{

  std::string result;

  uIntToStr(value, 0x10, result, prefix);

  return result;

}

inline std::string NumberFormatter::formatHex(unsigned value, int width, bool prefix)

{

  std::string result;

  uIntToStr(value, 0x10, result, prefix, width, '0');

  return result;

}

inline std::string NumberFormatter::format(long value)

{

  std::string result;

  intToStr(value, 10, result);

  return result;

}

inline std::string NumberFormatter::format(long value, int width)

{

  std::string result;

  intToStr(value, 10, result, false, width, ' ');

  return result;

}

inline std::string NumberFormatter::format0(long value, int width)

{

  std::string result;

  intToStr(value, 10, result, false, width, '0');

  return result;

}

inline std::string NumberFormatter::formatHex(long value, bool prefix)

{

  std::string result;

  uIntToStr(static_cast<unsigned long>(value), 0x10, result, prefix);

  return result;

}

inline std::string NumberFormatter::formatHex(long value, int width, bool prefix)

{

  std::string result;

  uIntToStr(static_cast<unsigned long>(value), 0x10, result, prefix, width, '0');

  return result;

}

inline std::string NumberFormatter::format(unsigned long value)

{

  std::string result;

  uIntToStr(value, 10, result);

  return result;

}

inline std::string NumberFormatter::format(unsigned long value, int width)

{

  std::string result;

  uIntToStr(value, 10, result, false, width, ' ');

  return result;

}

inline std::string NumberFormatter::format0(unsigned long value, int width)

{

  std::string result;

  uIntToStr(value, 10, result, false, width, '0');

  return result;

}

inline std::string NumberFormatter::formatHex(unsigned long value, bool prefix)

{

  std::string result;

  uIntToStr(value, 0x10, result, prefix);

  return result;

}

inline std::string NumberFormatter::formatHex(unsigned long value, int width, bool prefix)

{

  std::string result;

  uIntToStr(value, 0x10, result, prefix, width, '0');

  return result;

}

#ifdef POCO_HAVE_INT64

#ifdef POCO_INT64_IS_LONG

inline std::string NumberFormatter::format(long long value)

{

  std::string result;

  intToStr(value, 10, result);

  return result;

}

inline std::string NumberFormatter::format(long long value, int width)

{

  std::string result;

  intToStr(value, 10, result, false, width, ' ');

  return result;

}

inline std::string NumberFormatter::format0(long long value, int width)

{

  std::string result;

  intToStr(value, 10, result, false, width, '0');

  return result;

}

inline std::string NumberFormatter::formatHex(long long value, bool prefix)

{

  std::string result;

  uIntToStr(static_cast<unsigned long long>(value), 0x10, result, prefix);

  return result;

}

inline std::string NumberFormatter::formatHex(long long value, int width, bool prefix)

{

  std::string result;

  uIntToStr(static_cast<unsigned long long>(value), 0x10, result, prefix, width, '0');

  return result;

}

inline std::string NumberFormatter::format(unsigned long long value)

{

  std::string result;

  uIntToStr(value, 10, result);

  return result;

}

inline std::string NumberFormatter::format(unsigned long long value, int width)

{

  std::string result;

  uIntToStr(value, 10, result, false, width, ' ');

  return result;

}

inline std::string NumberFormatter::format0(unsigned long long value, int width)

{

  std::string result;

  uIntToStr(value, 10, result, false, width, '0');

  return result;

}

inline std::string NumberFormatter::formatHex(unsigned long long value, bool prefix)

{

  std::string result;

  uIntToStr(value, 0x10, result, prefix);

  return result;

}

inline std::string NumberFormatter::formatHex(unsigned long long value, int width, bool prefix)

{

  std::string result;

  uIntToStr(value, 0x10, result, prefix, width, '0');

  return result;

}

#else // ifndef POCO_LONG_IS_64_BIT

inline std::string NumberFormatter::format(Int64 value)

{

  std::string result;

  intToStr(value, 10, result);

  return result;

}

inline std::string NumberFormatter::format(Int64 value, int width)

{

  std::string result;

  intToStr(value, 10, result, false, width, ' ');

  return result;

}

inline std::string NumberFormatter::format0(Int64 value, int width)

{

  std::string result;

  intToStr(value, 10, result, false, width, '0');

  return result;

}

inline std::string NumberFormatter::formatHex(Int64 value, bool prefix)

{

  std::string result;

  uIntToStr(static_cast<UInt64>(value), 0x10, result, prefix);

  return result;

}

inline std::string NumberFormatter::formatHex(Int64 value, int width, bool prefix)

{

  std::string result;

  uIntToStr(static_cast<UInt64>(value), 0x10, result, prefix, width, '0');

  return result;

}

inline std::string NumberFormatter::format(UInt64 value)

{

  std::string result;

  uIntToStr(value, 10, result);

  return result;

}

inline std::string NumberFormatter::format(UInt64 value, int width)

{

  std::string result;

  uIntToStr(value, 10, result, false, width, ' ');

  return result;

}

inline std::string NumberFormatter::format0(UInt64 value, int width)

{

  std::string result;

  uIntToStr(value, 10, result, false, width, '0');

  return result;

}

inline std::string NumberFormatter::formatHex(UInt64 value, bool prefix)

{

  std::string result;

  uIntToStr(value, 0x10, result, prefix);

  return result;

}

inline std::string NumberFormatter::formatHex(UInt64 value, int width, bool prefix)

{

  std::string result;

  uIntToStr(value, 0x10, result, prefix, width, '0');

  return result;

}

#endif // ifdef POCO_INT64_IS_LONG

#endif // ifdef POCO_HAVE_INT64

inline std::string NumberFormatter::format(float value)

{

  char buffer[POCO_MAX_FLT_STRING_LEN];

  floatToStr(buffer, POCO_MAX_FLT_STRING_LEN, value);

  return std::string(buffer);

}

inline std::string NumberFormatter::format(float value, int precision)

{

  if (precision < 0)

    throw InvalidArgumentException("NumberFormatter::format() requires non-negative precision.");

  char buffer[POCO_MAX_FLT_STRING_LEN];

  floatToFixedStr(buffer, POCO_MAX_FLT_STRING_LEN, value, precision);

  return std::string(buffer);

}

inline std::string NumberFormatter::format(float value, int width, int precision)

{

  if (precision < 0)

    throw InvalidArgumentException("NumberFormatter::format() requires non-negative precision.");

  std::string result;

  floatToFixedStr(result, value, precision, width);

  return result;

}

inline std::string NumberFormatter::format(double value)

{

  char buffer[POCO_MAX_FLT_STRING_LEN];

  doubleToStr(buffer, POCO_MAX_FLT_STRING_LEN, value);

  return std::string(buffer);

}

inline std::string NumberFormatter::format(double value, int precision)

{

  if (precision < 0)

    throw InvalidArgumentException("NumberFormatter::format() requires non-negative precision.");

  char buffer[POCO_MAX_FLT_STRING_LEN];

  doubleToFixedStr(buffer, POCO_MAX_FLT_STRING_LEN, value, precision);

  return std::string(buffer);

}

inline std::string NumberFormatter::format(double value, int width, int precision)

{

  if (precision < 0)

    throw InvalidArgumentException("NumberFormatter::format() requires non-negative precision.");

  std::string result;

  doubleToFixedStr(result, value, precision, width);

  return result;

}

inline std::string NumberFormatter::format(const void* ptr)

{

  std::string result;

  append(result, ptr);

  return result;

}

} // namespace Poco

#endif // Foundation_NumberFormatter_INCLUDED