"Terje Slettebų" <[EMAIL PROTECTED]> wrote in message 031901c2b661$a1f9c9a0$cb6c6f50@pc">news:031901c2b661$a1f9c9a0$cb6c6f50@pc... > The types yes_type and no_type (or equivalent) - that is, two types which > are guaranteed to have different size - [snip] > By the way, these are defined as char and double, respectively. Are these > required to have different size? I haven't found that guarantee in the C++ > or C standard. Theoretically, you might have an architecture which operated > only on values of one size, so that char and double would have the same > size. > > In that case, maybe something like this could be safer: > > typedef char yes_type[1]; > typedef char no_type[2]; > > There are many variants, e.g.:
typedef double yes_type; typedef yes_type no_type[2]; /Pavel _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost
