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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
typedef struct{void*super;int name;int size;}t;
t*f(t*clas,int size)
{
t*child=(t*)malloc(size);
memcpy(child,clas,clas->size);
child->super=clas;
child->name=0;
child->size=size;
return child;
}
main()
{
t foo,*bar;
memset(&foo,37,sizeof(t));
foo.size=sizeof(t);
bar=f(&foo,sizeof(t));
if(bar->super!=&foo||bar->name!=0||bar->size!=sizeof(t))abort();
exit(0);
}
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