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c++ - finding struct offset

reply James Gordon <James_member pathlink.com> writes:
I was recently asked this question, and I couldn't figure out howto do it.

basically given a struct, finding the byte offset for each member.

struct a
{
char c0;
char c1;
short h;
int i;
};

the byte offset could be found in 1 line of C, how would one do it?
May 14 2005
parent Bertel Brander <bertel post4.tele.dk> writes:
James Gordon wrote:
 I was recently asked this question, and I couldn't figure out howto do it.
 
 basically given a struct, finding the byte offset for each member.
 
 struct a
 {
 char c0;
 char c1;
 short h;
 int i;
 };
 
 the byte offset could be found in 1 line of C, how would one do it?

int main() { struct a MyA; int Offset = (char *)&MyA.h - (char *)&MyA; printf("Offset: %d\n", Offset); return 0; }
May 14 2005