1  /* Test operation of -Wparentheses.  Precedence warnings.  + or - or
       2     comparison inside &.  */
       3  /* Origin: Joseph Myers <jsm@polyomino.org.uk> */
       4  
       5  /* { dg-do compile } */
       6  /* { dg-options "-Wparentheses" } */
       7  
       8  int foo (int);
       9  
      10  int
      11  bar (int a, int b, int c)
      12  {
      13    foo (a + b & c); /* { dg-warning "parentheses" "correct warning" } */
      14    foo ((a + b) & c);
      15    foo (a + (b & c));
      16    foo (1 + 2 & c); /* { dg-warning "parentheses" "correct warning" } */
      17    foo ((1 + 2) & c);
      18    foo (1 + (2 & c));
      19    foo (1 + 2 & 3); /* { dg-warning "parentheses" "correct warning" } */
      20    foo ((1 + 2) & 3);
      21    foo (1 + (2 & 3));
      22    foo (a & b + c); /* { dg-warning "parentheses" "correct warning" } */
      23    foo ((a & b) + c);
      24    foo (a & (b + c));
      25    foo (1 & 2 + c); /* { dg-warning "parentheses" "correct warning" } */
      26    foo ((1 & 2) + c);
      27    foo (1 & (2 + c));
      28    foo (1 & 2 + 3); /* { dg-warning "parentheses" "correct warning" } */
      29    foo ((1 & 2) + 3);
      30    foo (1 & (2 + 3));
      31    foo (a - b & c); /* { dg-warning "parentheses" "correct warning" } */
      32    foo ((a - b) & c);
      33    foo (a - (b & c));
      34    foo (1 - 2 & c); /* { dg-warning "parentheses" "correct warning" } */
      35    foo ((1 - 2) & c);
      36    foo (1 - (2 & c));
      37    foo (1 - 2 & 3); /* { dg-warning "parentheses" "correct warning" } */
      38    foo ((1 - 2) & 3);
      39    foo (1 - (2 & 3));
      40    foo (a & b - c); /* { dg-warning "parentheses" "correct warning" } */
      41    foo ((a & b) - c);
      42    foo (a & (b - c));
      43    foo (1 & 2 - c); /* { dg-warning "parentheses" "correct warning" } */
      44    foo ((1 & 2) - c);
      45    foo (1 & (2 - c));
      46    foo (1 & 2 - 3); /* { dg-warning "parentheses" "correct warning" } */
      47    foo ((1 & 2) - 3);
      48    foo (1 & (2 - 3));
      49    foo (a < b & c); /* { dg-warning "parentheses" "correct warning" } */
      50    foo ((a < b) & c);
      51    foo (a < (b & c));
      52    foo (1 < 2 & c); /* { dg-warning "parentheses" "correct warning" } */
      53    foo ((1 < 2) & c);
      54    foo (1 < (2 & c));
      55    foo (1 < 2 & 3); /* { dg-warning "parentheses" "correct warning" } */
      56    foo ((1 < 2) & 3);
      57    foo (1 < (2 & 3));
      58    foo (a & b < c); /* { dg-warning "parentheses" "correct warning" } */
      59    foo ((a & b) < c);
      60    foo (a & (b < c));
      61    foo (1 & 2 < c); /* { dg-warning "parentheses" "correct warning" } */
      62    foo ((1 & 2) < c);
      63    foo (1 & (2 < c));
      64    foo (1 & 2 < 3); /* { dg-warning "parentheses" "correct warning" } */
      65    foo ((1 & 2) < 3);
      66    foo (1 & (2 < 3));
      67    foo (a == b & c); /* { dg-warning "parentheses" "correct warning" } */
      68    foo ((a == b) & c);
      69    foo (a == (b & c));
      70    foo (1 == 2 & c); /* { dg-warning "parentheses" "correct warning" } */
      71    foo ((1 == 2) & c);
      72    foo (1 == (2 & c));
      73    foo (1 == 2 & 3); /* { dg-warning "parentheses" "correct warning" } */
      74    foo ((1 == 2) & 3);
      75    foo (1 == (2 & 3));
      76    foo (a & b == c); /* { dg-warning "parentheses" "correct warning" } */
      77    foo ((a & b) == c);
      78    foo (a & (b == c));
      79    foo (1 & 2 == c); /* { dg-warning "parentheses" "correct warning" } */
      80    foo ((1 & 2) == c);
      81    foo (1 & (2 == c));
      82    foo (1 & 2 == 3); /* { dg-warning "parentheses" "correct warning" } */
      83    foo ((1 & 2) == 3);
      84    foo (1 & (2 == 3));
      85    foo (a != b & c); /* { dg-warning "parentheses" "correct warning" } */
      86    foo ((a != b) & c);
      87    foo (a != (b & c));
      88    foo (1 != 2 & c); /* { dg-warning "parentheses" "correct warning" } */
      89    foo ((1 != 2) & c);
      90    foo (1 != (2 & c));
      91    foo (1 != 2 & 3); /* { dg-warning "parentheses" "correct warning" } */
      92    foo ((1 != 2) & 3);
      93    foo (1 != (2 & 3));
      94    foo (a & b != c); /* { dg-warning "parentheses" "correct warning" } */
      95    foo ((a & b) != c);
      96    foo (a & (b != c));
      97    foo (1 & 2 != c); /* { dg-warning "parentheses" "correct warning" } */
      98    foo ((1 & 2) != c);
      99    foo (1 & (2 != c));
     100    foo (1 & 2 != 3); /* { dg-warning "parentheses" "correct warning" } */
     101    foo ((1 & 2) != 3);
     102    foo (1 & (2 != 3));
     103  }