I suspect you mean 'struct', not 'strict', and 'char' instead of 'Char'.
The size will be implementation dependent. On most 32-bit systems, it will probably be 5 -- 4 bytes for the pointer, one for the char. I don't believe alignment will come into play here. If you swapped 'c' and 'b', however, the size may grow to 8 bytes.
Ok, I tried it out (g++ 4.2.3, with -g option) and I get 8.
