The Windows CreateFile function is actually a macro that expands to one of: CreateFileA, which takes a file path of type const char* CreateFileW, which takes a file path of type const wchar_t*. (The same is true for most of the functions in the Windows API that take a string.) You’re declaring the parameter const … Read more
First convert it to std::wstring: std::wstring widestr = std::wstring(str.begin(), str.end()); Then get the C string: const wchar_t* widecstr = widestr.c_str(); This only works for ASCII strings, but it will not work if the underlying string is UTF-8 encoded. Using a conversion routine like MultiByteToWideChar() ensures that this scenario is handled properly.
Edit: This doesn’t work if you are trying to write text that cannot be represented in your default locale. 🙁 Use std::wcout instead of std::cout. wcout << ru << endl << en;
The short answer: NO. Like all the others already wrote, a lot of programmers still use TCHARs and the corresponding functions. In my humble opinion the whole concept was a bad idea. UTF-16 string processing is a lot different than simple ASCII/MBCS string processing. If you use the same algorithms/functions with both of them (this … Read more
To represent the character you can use Universal Character Names (UCNs). The character ‘ф’ has the Unicode value U+0444 and so in C++ you could write it ‘\u0444’ or ‘\U00000444’. Also if the source code encoding supports this character then you can just write it literally in your source code. // both of these assume … Read more
Is this the right way to write an idiomatic, portable, universal, encoding-agnostic program core using only pure standard C/C++ No, and there is no way at all to fulfill all these properties, at least if you want your program to run on Windows. On Windows, you have to ignore the C and C++ standards almost … Read more
As said, you can use std::wcscpy() to copy from a std::wstring to a wchar_t array. That being said, the times you should need to do so are pretty rare. Generally the + operator along with .find() and substr() are more than up to whatever task you need. That and using .c_str() if you need to … Read more