get length of `wchar_t*` in c++

Question

Please, how can I find out the length of a variable of type wchar_t* in c++?

code example below:

wchar_t* dimObjPrefix = L\"retro_\";
         


        

Answer 1

Assuming that you want to get the length of null terminated C style string, you have two options:

1. #include and use std::wcslen (dimObjPrefix);,
2. or #include and use std::char_traits::length (dimObjPrefix);.