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. The meaning of such a
conversion is implementation-defined, except that if an implementation
supports conversions in both directions, converting a prvalue of one
type to the other type and back, possibly with different
cv-qualification, shall yield the original pointer value.
Jason
