Question

A function returns a pointer and a length (via the arguments) from an unknown DLL.

Result = SpamnEggs( &pBytes, &nBytes )

The pointer points to a valid memory address at which are nBytes sequential bytes.
These bytes contain valid ascci values for text. There is no null termination!

I am tasked with “ovelaying” a string type of some sort in as few simple operations in generic C++ code (without complex libraries or using byte) before output:

cout << sresult

Added:
without copying the bytes as this is a large buffer that must be traversed.

Prototype:

int SpamnEggs( void* pBytes, void* nBytes );

becomes

int SpamnEggs( char** pBytes, int* nBytes );

Many thanks all. Great answers and all very valid.

Answer 1

You can just construct a std::string from the pointer and a length.

std::string sResult(pBytes, nBytes);
std::cout << sResult;

(assuming pBytes is a char* pointer, otherwise you need a small cast).