restrict-1.c

来自「linux下的gcc编译器」· C语言 代码 · 共 31 行

/*  PR rtl-optimization/16536
    Origin:  Jeremy Denise      <[e-mail]>
    Reduced: Wolfgang Bangerth  <[e-mail]>
             Volker Reichelt    <[e-mail]>  */

extern void abort ();

typedef struct
{
  int i, dummy;
} A;

inline A foo (const A* p, const A* q)
{
  return (A){p->i+q->i};
}

void bar (A* __restrict__ p)
{
  *p=foo(p,p);
  if (p->i!=2)
    abort();
}

int main ()
{
  A a={1};
  bar(&a);
  return 0;
}