Class Size

class A {}; is 1 byte on Solaris.

The size needs to be at least one byte, so that a reference can be declared using an object of the class. For example: ...; A a; A& ra = &a; ... This is the same value given in Microsoft

C++;

Note that the size is still one even when the 'struct' keyword is used instead of the 'class' keyword. Also note, in C, the size of an empty struct is 0 and not 1 as in C++. This is

because there are no references in C.