*** test program for CMemList class.
set up long jump ... done.
initial state:
content: 
add 1st.
content: "this is a first string.", 
copy 2nd.
content: "this is a first string.", "this is the 2nd one.", 
copy 3rd.
content: "this is a first string.", "this is the 2nd one.", "this is 3rd, i'm tired.", 
reallocate.
content: "i must think another message.", "this is the 2nd one.", "this is 3rd, i'm tired.", 
deallocate.
content: "i must think another message.", "this is 3rd, i'm tired.", 
get last size, ptr.
last size 24, ptr = "this is 3rd, i'm tired."
clear.
end of clear.
content: 
bye.
