[Bug c/109956] GCC reserves 9 bytes for struct s { int a; char b; char t[]; } x = {1, 2, 3};

[joseph at codesourcery dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109956

--- Comment #6 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
For the standard, dynamically allocated case, you should only need to 
allocate enough memory to contain the initial part of the struct and the 
array members being accessed - not any padding after that array.  (There 
were wording problems before C99 TC2; see DR#282.)