Jason Merrill wrote:
On 05/20/2010 08:18 AM, Peter Dimov wrote:
On 05/20/2010 01:55 PM, Paolo Carlini wrote:
It's uglier because the code above doesn't work for functions,
By the way, do you have a specific testcase in mind?
Because addressof_fn_test.cpp, part of Boost, passes...
This is probably a g++/gcc extension... some compilers do not allow
references to functions to be casted to char&, and I believe the
standard doesn't permit that, either.
The standard permits a compiler to accept or reject such a cast.
5.2.10/8: Converting a pointer to a function into a pointer to an object
type or vice versa is conditionally-supported.
Thanks; that is, then, why the latest Comeau accepts it. It didn't occur to
me to try the earlier versions on http://www.comeaucomputing.com/tryitout/ -
they reject the code. This paragraph is a new addition, not present in
C++03; "conditionally supported" is a C++0x-ism. :-)
