StringConvert.hpp

/**
*  StringConvert.hpp
*
*/

#ifndef STRING_CONVERT_HPP
#define STRING_CONVERT_HPP

#include <string>
#include <locale>
#include <codecvt>

class StringConvert final
{
public :

  // Delete destructor
  ~StringConvert() = delete;

  // WBCS to MBCS
  static std::string wideStringToAnsiString(const std::wstring& wstring, const std::locale& locale = std::locale{""});

  // MBCS to WBCS
  static std::wstring ansiStringToWideString(const std::string& string, const std::locale& locale = std::locale{""});

  // UTF-8 -> UTF-16
  static std::u16string u8StringToU16String(const std::string& u8String);

  // UTF-8 -> UTF-32
  static std::u32string u8StringToU32String(const std::string& u8String);

  // UTF-16 -> UTF-8
  static std::string u16StringToU8String(const std::u16string& u16String);

  // UTF-16 -> UTF-32
  static std::u32string u16StringToU32String(const std::u16string& u16String);

  // UTF-32 -> UTF-8
  static std::string u32StringToU8String(const std::u32string& u32String);

  // UTF-32 -> UTF-16
  static std::u16string u32StringToU16String(const std::u32string& u32String);

private :

#if defined(_MSC_VER) && _MSC_VER >= 1900
  // https://social.msdn.microsoft.com/Forums/en-US/8f40dcd8-c67f-4eba-9134-a19b9178e481/vs-2015-rc-linker-stdcodecvt-error?forum=vcgeneral
  #define _MSVC_CONVERT_WORKAROUND
#endif
  // Member data
#if defined(_MSVC_CONVERT_WORKAROUND)
  static std::wstring_convert<std::codecvt_utf8<int32_t>, int32_t> s_u32Converter;
  static std::wstring_convert<std::codecvt_utf8_utf16<int16_t>, int16_t> s_u16Converter;
#else
  static std::wstring_convert<std::codecvt_utf8<char32_t>, char32_t> s_u32Converter;
  static std::wstring_convert<std::codecvt_utf8_utf16<char16_t>, char16_t> s_u16Converter;
#endif
};

#endif // STRING_CONVERT_HPP