Wide String conversions

[Helper]

On 22/11/2017 at 06:29, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   R19 
Platform:   Windows  ;   
Language(s) :     C++  ;

---------
Hello,
 
I'm trying to get a wide string out of the C4D String class, but I'm getting garbage at the end of it.

  
 // const Filename &name  
 // contains "C:\myfile.txt"  
  
 String str = name.GetFileString();  
  
 maxon::BaseArray<Utf16Char> arr;  
 if(str.GetUtf16(arr)) {  
  
  const wchar_t *ptr = (const wchar_t * )arr.GetFirst();  
  
  wprintf(L"ptr: %s\n", ptr );  
 }  

  
It prints:  
C:\myfile.txt   <garbage chars at end>  

What am I doing wrong?  Is it bad to assume that GetUtf16 arrays are always terminated by a NULL?

I also would like to convert a wide string to String:

  
wchar_t wfilename[256] = L"C:\\myfile.txt";  
  
String str;  
str.SetUtf16( (const Utf16Char * )wfilename, -1 );  

Is this correct as well?

Using C4D C++ SDK.

[Helper]

On 23/11/2017 at 03:18, xxxxxxxx wrote:

Hi,

As stated in the docs, the buffer returned by GetUtf16() is not null terminated.
So you have to add it to the code with arr.Append(0) before conversion to wchar_t*.
The code for the other way round (from wchar_t* to String) looks fine.

[Helper]

On 23/11/2017 at 12:32, xxxxxxxx wrote:

Thanks for the reply.

I didn't know about arr.Append(0).  I found another way using Count(), but your method is much cleaner.