linux下的gcc编译器

				#include 				#include 								static struct sss{				  ptrdiff_t f;				} a[10];								int main (void) {				  printf ("++++Array of struct with ptrdiff_t:\n");				  printf ("size=%d,align=%d,displ-a[5]=%d,align-a[5]=%d\n",				          sizeof (a), __alignof__ (a), (char*)&a[5] - (char*)a, __alignof__ (a[5]));				  return 0;				}