Daniel Lohmann wrote:
On 27.03.2008, at 21:59, Harvey Chapman wrote:
Why does ...
#define MT(name) { name::Type, name::Create }
work, and ...
#define MT(name) { name##::Type, name##::Create }
does not?
AFAIK :: is a delimiter to the preprocessor (similar to ,). Hence, the
first one should be portable; the latter one does not work as the
result of the concatenation has to be a token.
To clarify this in the code , you could even write:
#define MT(name) { name :: Type, name :: Create }
you are correct on all points. '::' is a token in its own right.
nathan.
--
Nathan Sidwell :: http://www.codesourcery.com :: CodeSourcery
