ms = [NSMutableString stringWithCapacity:32];
- [ms appendFormat:@"<0x%08X[%@]:", self, NSStringFromClass([self class])];
+ [ms appendFormat:@"<0x%p[%@]:", self, NSStringFromClass([self class])];
[ms appendFormat:@" factories=#%d", [self->subfactories count]];
[ms appendFormat:@">"];