用于进行gcc测试

				// { dg-do run  }				// Bug: a ends up in the text segment, so trying to initialize it causes				// a seg fault.								struct A {				  int i;				  A(): i(0) {}				  A(int j): i(j) {}				};								const A a;				const A b(1);								int main ()				{				  return 0;				}