Is there a built in function for std::string in C++ to compare two strings alphabetically when either string can be uppercase or lowercase?

Question

I know for C++ that basic comparative operators can accomplish the task if both words are either entirely lower or entirely upper case. I have an array of strings and letter

Answer 1

You can use Boost String Algorithms:

#include 
#include 

#include 

int main() {
    std::string s { "Test" };
    assert(boost::iequals(s, "TEST"));
}