view gcc/testsuite/gcc.dg/gnu89-init-1.c @ 131:84e7813d76e9

gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children
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/* Test for GNU extensions to compound literals */
/* Origin: Jakub Jelinek <jakub@redhat.com> */
/* { dg-do run } */
/* { dg-options "-std=gnu89" } */

extern void abort (void);
extern void exit (int);

struct A { int i; int j; int k[4]; };
struct B { };
struct C { int i; };
struct D { int i; struct C j; };

/* As a GNU extension, we allow initialization of objects with static storage
   duration by compound literals.  It is handled as if the object
   was initialized only with the bracket enclosed list if compound literal's
   and object types match.  If the object being initialized has array type
   of unknown size, the size is determined by compound literal's initializer
   list, not by size of the compound literal.  */

struct A a = (struct A) { .j = 6, .k[2] = 12 };
struct B b = (struct B) { };
int c[] = (int []) { [2] = 6, 7, 8 };
int d[] = (int [3]) { 1 };
int e[2] = (int []) { 1, 2 };
int f[2] = (int [2]) { 1 };
struct C g[3] = { [2] = (struct C) { 13 }, [1] = (const struct C) { 12 } };
struct D h = { .j = (struct C) { 15 }, .i = 14 };
struct D i[2] = { [1].j = (const struct C) { 17 },
		  [0] = { 0, (struct C) { 16 } } };
struct C j[2][3] = { [0 ... 1] = { [0 ... 2] = (struct C) { 26 } } };
struct C k[3][2] = { [0 ... 2][0 ... 1] = (const struct C) { 27 } };

int main (void)
{
  if (a.i || a.j != 6 || a.k[0] || a.k[1] || a.k[2] != 12 || a.k[3])
    abort ();
  if (c[0] || c[1] || c[2] != 6 || c[3] != 7 || c[4] != 8)
    abort ();
  if (sizeof (c) != 5 * sizeof (int))
    abort ();
  if (d[0] != 1 || d[1] || d[2])
    abort ();
  if (sizeof (d) != 3 * sizeof (int))
    abort ();
  if (e[0] != 1 || e[1] != 2)
    abort ();
  if (sizeof (e) != 2 * sizeof (int))
    abort ();
  if (f[0] != 1 || f[1])
    abort ();
  if (sizeof (f) != 2 * sizeof (int))
    abort ();
  if (g[0].i || g[1].i != 12 || g[2].i != 13)
    abort ();
  if (h.i != 14 || h.j.i != 15)
    abort ();
  if (i[0].i || i[0].j.i != 16 || i[1].i || i[1].j.i != 17)
    abort ();
  if (j[0][0].i != 26 || j[0][1].i != 26 || j[0][2].i != 26)
    abort ();
  if (j[1][0].i != 26 || j[1][1].i != 26 || j[1][2].i != 26)
    abort ();
  if (k[0][0].i != 27 || k[0][1].i != 27 || k[1][0].i != 27)
    abort ();
  if (k[1][1].i != 27 || k[2][0].i != 27 || k[2][1].i != 27)
    abort ();
  exit (0);
}