Question

I found this line of code when upgrading a C++ Builder project to RAD Studio 2009:

mProcessLength->Text.printf("%d",mStreamLength);

It doesn’t compile in 2009, however what is the intent of this line and what is a better equivalent? Given that mProcessLength->Text is now a wchar_t*.

Answer 1

I suspect that you are getting these errors:

E2034 Cannot convert 'const char *' to 'const wchar_t *'
E2342 Type mismatch in parameter 'format' (wanted 'const wchar_t *', got 'const char *')

It’s the parameters you are passing to printf that are mismatched.
Changing it to:

mProcessLength->Text.printf(L"%d",mStreamLength);

will change your string literal to the correct type.