wtr-aggr-init-1.c

来自「gcc3.2.1源代码」· C语言 代码 · 共 49 行

/* Test for -Wtraditional warnings on automatic aggregate initialization.
   Note, gcc should omit these warnings in system header files.
   By Kaveh R. Ghazi <[e-mail]> 8/22/2000.  */
/* { dg-do compile } */
/* { dg-options "-Wtraditional" } */

struct foo
{
  int i;
  long l;
};

struct foo f0 = { 0, 0 };
static struct foo f1 = { 0, 0 };

void
testfunc1 (void)
{
  struct foo f3 = { 0, 0 }; /* { dg-warning "traditional C rejects automatic" "automatic aggregate initialization" } */
  static struct foo f4 = { 0, 0 };
  
  f3 = f4;

  __extension__ ({
    struct foo f5 = { 0, 0 }; /* { dg-bogus "traditional C rejects automatic" "__extension__ disables warnings" } */
    f5.i = 0;
  });

  {
    struct foo f6 = { 0, 0 }; /* { dg-warning "traditional C rejects automatic" "__extension__ reenables warnings" } */
    f6.i = 0;
  }
}
  
# 35 "sys-header.h" 3
/* We are in system headers now, no -Wtraditional warnings should issue.  */

struct foo f7 = { 0, 0 };
static struct foo f8 = { 0, 0 };

void
testfunc2 (void)
{
  struct foo f9 = { 0, 0 };
  static struct foo f10 = { 0, 0 };
  
  f9 = f10;
}