: > 134 #define __glibcpp_signed(T) ((T)(-1) < 0) : #define __glibcpp_signed(T) (!((T)(-1) > 0))
Why not the simpler: #define __glibcpp_signed(T) ((T)(-1) <= 0) that way we have an overlap on the range of the two types, so we won't get a warning. We know for a fact that -1 != 0 for all known machine types (all machines are two's complement, or are required to behave as if they are two's complement, per the standard). (unsigned int) -1 == 0xffffffff (assuming 32-bit int). even on a one's complement's machine, without the standard conversion, the 'type punning' conversion of -1 would yield 0xfffffffe, which is still > 0. Warner _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "[EMAIL PROTECTED]"
