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  1. #include <iostream>
  2. #include <fstream>
  3. #include <codecvt>
  4. #include <algorithm>
  5.  
  6. //VC only.
  7.  
  8. bool ReadStringFromFile(const std::string& FName, std::wstring& R) {
  9. 	std::wifstream fs;
  10. 	std::codecvt_utf8_utf16<wchar_t, 0x10ffff, std::consume_header> Cnv;
  11. 	//auto OL = fs.imbue(std::locale(std::locale::empty(), new std::codecvt_utf8_utf16<wchar_t, 0x10ffff, std::consume_header>()));
  12. 	auto OL = fs.imbue(std::locale("japanese"));
  13. 	//static_assert(sizeof(wchar_t) == 2, "this is only for windows.");//Linuxではつかうcvt違うから直してくれ
  14.  
  15. 	fs.open(FName);
  16.  
  17. 	if (!fs) {
  18. 		std::cout << "can't open file." << std::endl;
  19. 		return false;
  20. 	}
  21. 	auto b = std::istreambuf_iterator<std::wistream::char_type>(fs);
  22. 	auto e = std::istreambuf_iterator<std::wistream::char_type>();
  23. 	R = std::wstring(b, e);
  24.  
  25. 	fs.imbue(OL);
  26. 	return true;;
  27. }
  28. int main() {
  29. 	std::wstring S;
  30. 	auto B = std::wcout.imbue(std::locale("japanese"));
  31. 	if (!ReadStringFromFile((__FILE__), S)) {
  32. 		return -1;
  33. 	}
  34. 	std::wcout << S << std::endl;
  35. 	std::wcout <<L"------------" << std::endl;
  36. 	std::reverse(S.begin(), S.end());
  37.  
  38. 	std::wcout << S << std::endl;
  39.  
  40. 	std::wcout.imbue(B);
  41.  
  42. 	return 0;
  43. }
Runtime error #stdin #stdout #stderr 0s 17712KB
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stdin
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Standard input is empty
stdout
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Standard output is empty
stderr
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terminate called after throwing an instance of 'std::runtime_error'
  what():  locale::facet::_S_create_c_locale name not valid
https://ideone.com/1bQnxO
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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