deref1.c

来自「linux下编程用 编译软件」· C语言 代码 · 共 15 行

// { dg-do assemble  }
// Copyright (C) 1999 Free Software Foundation, Inc.
// Contributed by Nathan Sidwell 1 Sep 1999 <[e-mail]>

// [expr.unary.op]/1 says you can dereference all pointers except for pointers
// to cv void.

void fn (void *vp, volatile void *vvp)
{
  *vp;      // { dg-error "" } not a pointer to object
  *vvp;     // { dg-error "" } not a pointer to object
  &*vp;     // { dg-error "" } not a pointer to object
  &*vvp;    // { dg-error "" } not a pointer to object
}