gcc/testsuite/gcc.dg/pr30260.c

   1 /* PR 30260  */
   2 /* { dg-do link } */
   3 /* { dg-options "-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-error "overflow in enumeration values" } */
  34 enum E2 { e20 = (unsigned) INT_MAX, e21 }; /* { dg-error "overflow in enumeration values" } */