gcc/testsuite/c-c++-common/warn-ommitted-condop.c

   1 /* { dg-options "-Wparentheses" } */
   2
   3 extern void f2 (int);
   4
   5 void bar (int x, int y, int z)
   6 {
   7 #define T(op) f2 (x op y ? : 1)
   8 #define T2(op) f2 (x op y ? 2 : 1)
   9
  10   T(<); /* { dg-warning "omitted middle operand" } */
  11   T(>); /* { dg-warning "omitted middle operand" } */
  12   T(<=); /* { dg-warning "omitted middle operand" } */
  13   T(>=); /* { dg-warning "omitted middle operand" } */
  14   T(==); /* { dg-warning "omitted middle operand" } */
  15   T(!=); /* { dg-warning "omitted middle operand" } */
  16   T(||); /* { dg-warning "omitted middle operand" } */
  17   T(&&); /* { dg-warning "omitted middle operand" } */
  18   f2 (!x ? : 1);  /* { dg-warning "omitted middle operand" } */
  19   T2(<); /* { dg-bogus "omitted middle operand" } */
  20   T2(>); /* { dg-bogus "omitted middle operand" } */
  21   T2(==); /* { dg-bogus "omitted middle operand" } */
  22   T2(||); /* { dg-bogus "omitted middle operand" } */
  23   T2(&&); /* { dg-bogus "omitted middle operand" } */
  24   T(+); /* { dg-bogus "omitted middle operand" } */
  25   T(-); /* { dg-bogus "omitted middle operand" } */
  26   T(*); /* { dg-bogus "omitted middle operand" } */
  27   T(/); /* { dg-bogus "omitted middle operand" } */
  28   T(^); /* { dg-bogus "omitted middle operand" } */
  29 }