How to set file encoding format to UTF8 in C++

Question

A requirement for my software is that the encoding of a file which contains exported data shall be UTF8. But when I write the data to the file the encoding is always ANSI. (

Answer 1

The type char has no clue of any encoding, all it can do is store 8 bits. Therefore any text file is just a sequence of bytes and the user must guess the underlying encoding. A file starting with a BOM indicates UTF 8, but using a BOM is not recommended any more. The type wchar_t in contrast is in Windows always interpreted as UTF 16.

So let's say you have a file encoded in UTF 8 with just one line: "Confucius says: Smile. 孔子说：微笑！