On 16-09-2012 13:33, Jacob Carlborg wrote:
On 2012-09-15 23:30, Walter Bright wrote:
Doing null references in C++ is simple:
int *p = NULL;
int& r = *p;
r = 3; // crash
Won't that crash at the first assignment of "r", since you dereferencing
a null pointer?.
Nope, since in this context you're assigning it to an int&. So it really
just means "r = p" if you assume that references are just pointers
(which they are in most implementations).
D works like this too, if you pass a *p to a ref parameter and such.
--
Alex Rønne Petersen
a...@lycus.org
http://lycus.org
