Coping one array to another in Managed C++

[Guest]

How can I copy 5 bytes from the middle of one array to another in Managed C++?
The following code segment causes the compilation errors below:

unsigned char cResult __gc[] = new unsigned char __gc[256];
unsigned char cBuf __gc[] = new unsigned char __gc[256];
....
strncpy(cBuf, (cResult + 10), 5);

***********************************************

error C2690: '+' : cannot perform pointer arithmetic on a __gc array
error C2664: 'strncpy' : cannot convert parameter 1 from 'unsigned char
__gc[]' to 'char *'
Can only convert a __gc array to or from Object * or Array *

***********************************************

Can anyone clarify this situation, please.

 

[Guest]

for(int i=0;i<5;i++)
cBuf = cResult[10+i];

 

[mphanke]

You could do something like this:

strncpy((unsigned char*)&cBuf[0], ((unsigned char*)&cResult[0])+10, 5);

This should also work IMO.

Martin

 

[Guest]

Array.Copy?


http://msdn.microsoft.com/library/d...pref/html/frlrfsystemarrayclasscopytopic3.asp