1  /* PR 30260  */
       2  /* { dg-do link } */
       3  /* { dg-options "-std=gnu11 -pedantic -O" } */
       4  #include <limits.h>
       5  
       6  void link_error (void);
       7  
       8  enum A {
       9    A1 = 0, 
      10    A2 = A1 - 1
      11  };
      12  enum B {
      13    B1 = 0u, 
      14    B2 = B1 - 1 /* { dg-bogus "ISO C restricts enumerator values to range of 'int'" } */
      15  };
      16  int main(void)
      17  {
      18    enum A a = -1;
      19    enum B b = -1;
      20  
      21    if (!(a < 0))
      22      link_error ();
      23    if (!(A2 < 0))
      24      link_error ();
      25    if (!(b < 0))
      26      link_error ();
      27    if (!(B2 < 0))
      28      link_error ();
      29  
      30    return 0;
      31  }
      32  
      33  enum E1 { e10 = INT_MAX, e11 }; /* { dg-warning "ISO C restricts enumerator values to range of 'int' before C2X" } */
      34  enum E2 { e20 = (unsigned) INT_MAX, e21 }; /* { dg-warning "ISO C restricts enumerator values to range of 'int' before C2X" } */