Size of references in 64bit environments

Question

Came across this one while browsing the response to another question on SO (References Vs Variable Gets). My question is that for all 64bit environments is it guaranteed that a reference to a variable will be of 64 bits even if the original had a lesser size? As in char references in 64bit environment would be >sizeof(char)? Is there any section in the standard which specifies this explicitly?

EDIT: For more clarity -- char c1 = 'a'; char& c2 = c1; My question is sizeof(c2) > sizeof(c1) in 64bit machines?

Answer 1

The Standard (ISO C++-03) says the following thing about references

It is unspecified whether or not a reference requires storage (3.7).

Please someone correct me if I am wrong or if I have not understood his question correctly.

EDIT:

My question is sizeof(c2) > sizeof(c1) in 64bit machines?

No, as @Chubsdad noticed sizeof(c2) = sizeof (c1), the relevant quote from the Standard is

When applied to a reference or a reference type, the result is the size of the referenced type. (ISO C++ $5.3.3/2)