+
−/* Test for case labels not integer constant expressions but folding
+
−   to integer constants (used in Linux kernel).  */
+
−/* { dg-do compile } */
+
−/* { dg-options "-pedantic" } */
+
−
+
−extern unsigned int u;
+
−
+
−void
+
−b (int c)
+
−{
+
−  switch (c)
+
−    {
+
−    case (int) (2  | ((4 < 8) ? 8 : u)): /* { dg-warning "case label is not an integer constant expression" } */
+
−      ;
+
−    }
+
−}
+
−