Concatenate CString and Long in VC++? - c++

Question

I have to concatenate two CString variables and two long variables in one
CString. I found one Format function that I have used like this:
CString str = "Some Data";
str.Format("%s%d", str, 123);
But it is giving errors. Here is the error log:
\AudWinSockXCtrl.cpp(410) : error C2440: 'initializing' : cannot convert from 'const char [10]' to 'ATL::CStringT'
with
[
BaseType=wchar_t,
StringTraits=StrTraitMFC
]
Constructor for class 'ATL::CStringT' is declared 'explicit'
with
[
BaseType=wchar_t,
StringTraits=StrTraitMFC
]
.\AudWinSockXCtrl.cpp(411) : error C2664: 'void ATL::CStringT::Format(const wchar_t *,...)' :
cannot convert parameter 1 from 'const char [5]' to 'const wchar_t *'
with
[
BaseType=wchar_t,
StringTraits=StrTraitMFC
]
Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or
function-style cast
.\AudWinSockXCtrl.cpp(414) : error C2664: 'void ATL::CStringT::Format(const wchar_t *,...)' :
cannot convert parameter 1 from 'const char [4]' to 'const wchar_t *'
with
[
BaseType=wchar_t,
StringTraits=StrTraitMFC
]
Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or
function-style cast
Is there any function like toString() like we use in Java?

Answer 1

CString str = _T("Some Data");
str.Format(_T("%s%d"), str, 123);
Read up on _T and <tchar.h> here: Generic-Text Mappings in Tchar.h .

Answer 2

sprintf ( OutputBuffer, "%s%d", str, 123 ) ;
Use CStringA for ANSI Version.
Use CStringW for Unicode Version.
Use CString for TCHAR Version.
To force CString to be evaluated as CStringA::
Goto, Project->Properties->Configuration Properties->General.
On right hand side, you will get "Character Set" Row, change that to "Not set"