How can I convert an Int to a CString?

Question

I can convert a Double to a CString using _ecvt

result_str=_ecvt(int,15,&decimal,&sign);

So, is there a method like the one above that converts an int to CString?

Note: The `cstring` tag is for the standard C++ header `cstring`, not for Microsofts string thing. — Sebastian Mach, Sep 26 '12 at 13:35

dsgriffin · Accepted Answer · 2013-05-13T11:31:14.740

77

Here's one way:

CString str;
str.Format("%d", 5);

In your case, try _T("%d") or L"%d" rather than "%d"

edited May 13 '13 at 11:31

answered Sep 26 '12 at 13:13

dsgriffin

66,495
17
137
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1

Can't do it much faster than that. You may want to wrap the string with the `_T` macro to match the `LPCTSTR` parameter type. – user1201210 Sep 26 '12 at 13:15
2

@Eslam How specifically did it not work? Didn't compile? Runtime error? Wrong result? – user1201210 Sep 26 '12 at 13:17
@Daniel, the following error arises error C2664: 'void ATL::CStringT::Format(const wchar_t *,...)' : cannot convert parameter 1 from 'const char [3]' to 'const wchar_t *' – Eslam Hamdy Sep 26 '12 at 13:18
7

@Eslam Try `_T("%d")` or `L"%d"` rather than `"%d"`. – user1201210 Sep 26 '12 at 13:19
It is not working for me! I am getting error 'cannot convert argument 1 from 'const char [3]' to 'const unsigned short *'. Weird. – ZoomIn Mar 18 '22 at 10:45

score 8 · Answer 2 · answered Sep 26 '12 at 13:32

If you want something more similar to your example try _itot_s. On Microsoft compilers _itot_s points to _itoa_s or _itow_s depending on your Unicode setting:

CString str;
_itot_s( 15, str.GetBufferSetLength( 40 ), 40, 10 );
str.ReleaseBuffer();

it should be slightly faster since it doesn't need to parse an input format.

score 0 · Answer 3 · answered Aug 25 '21 at 20:05

0

template <typename Type>
CString ToCString (Type value)
    {
    return std::to_wstring (value).data ();
    }

int main ()
    {
    const auto msg = ToCString (10);
    std::wcout << msg.GetString () << std::endl;

    return 0;
    }

answered Aug 25 '21 at 20:05

Catriel

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score 0 · Answer 4 · answered Apr 06 '23 at 15:49

0

CString(std::to_string(123).c_str())

answered Apr 06 '23 at 15:49

Jesse Hufstetler

583
7
13

How can I convert an Int to a CString?

4 Answers4