Question

I am trying to translate some code from objective c to unmanaged c++
I have this operation

Buffer* ir =malloc( sizeof( Buffer ) );

error: expression must have pointer-to type?
the same error goes into this code

ir->buffer = malloc( bufferSize );

Could you please provide me correct use of malloc in this unmanaged c++?

Answer 1

malloc() returns a void * which might be leading to this issue. You can cast the return:

Buffer *ir = (Buffer *)malloc(sizeof(Buffer));

or, if you’re using C++, you should use new instead:

Buffer *ir = new Buffer;

(If you do, don’t forget to change the free() to delete though).