Hi All, I'm trying to reduce the alignment of the double in this structure
to 4 bytes (from 8) on Darwin. The goal of doing this is to reduce the
structure to 12 bytes in size. Here is my testcase:
struct Test {
double D __attribute__((aligned(4))); // only 4 bytes, not 8!
int X;
};
int X() {
return sizeof(struct Test); // Should return 12, not 16.
}
Despite my attempt above, the structure is still 16 bytes in size, due to
the tail padding required to pad the structure to ensure 8-byte alignment.
Does anyone know how to reduce the alignment of the double, eliminating
the tail padding?
Thanks,
-Chris
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