How do I convert a UE4 FString into a string?

Question

TextLine2 needs to be a regular string however I receive the error no instance of constructor matches the argument list.

void AAH_Ver1_2::GetEachTextFromLine(FString TextLine1)
{
    string TextLine2 = TextLine1;
    istringstream iss(TextLine2);
}

Answer 1

You can convert an FString to an std::string with the TCHAR_TO_UTF8 macro:

std::string const s = TCHAR_TO_UTF8(*fstring);