declspec-14.c

来自「linux下编程用 编译软件」· C语言 代码 · 共 12 行

/* Test that "typeof(struct foo)" and similar as declaration
   specifiers act like typedef.  */
/* Origin: Joseph Myers <[e-mail]> */
/* { dg-do compile } */
/* { dg-options "" } */

typeof(struct foo); /* { dg-warning "warning: useless type name in empty declaration" } */

struct bar { int a; } x;

typeof(x); /* { dg-warning "warning: useless type name in empty declaration" } */