Case-insensitive UTF-8 string collation for SQLite (C/C++)

Question

I am looking for a method to compare and sort UTF-8 strings in C++ in a case-insensitive manner to use it in a custom collation function in SQLite.

1. The method shou

Answer 1

I have no definitive answer in the form of example code, but I should point out that an UTF-8 bytestream contains, in fact, Unicode characters and you have to use the wchar_t versions of the C/C++ runtime library.

You have to convert those UTF-8 bytes into wchar_t strings first, though. This is not very hard, as the UTF-8 encoding standard is very well documented. I know this, because I've done it, but I can't share that code with you.