gcc/testsuite/gcc.dg/pr30260.c

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