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/* Test for constant expressions: VLA size constraints.  */

/* Origin: Joseph Myers <joseph@codesourcery.com> */

/* { dg-do compile } */

/* { dg-options "-std=iso9899:1999 -pedantic-errors" } */

void

f (int m)

{

  /* An array size that is a constant expression, not just an integer

     constant expression, must be checked for being positive, but only

     an integer constant expression makes it not a VLA (which affects

     certain compatibility checks, in particular).  */

  int a1[0]; /* { dg-error "zero" } */

  int a2[-1]; /* { dg-error "negative" } */

  int a3[(int)(double)0.0]; /* { dg-error "zero" } */

  int a4[(int)-1.0]; /* { dg-error "negative" } */

  int a5[(int)+1.0];

  int a6[(int)+2.0];

  void *p = (m ? &a5 : &a6);

  int a7[(int)1.0];

  int a8[(int)2.0];

  void *q = (m ? &a7 : &a8); /* { dg-error "pointer type mismatch in conditional expression" } */

}