/* Test operation of -Wparentheses. Precedence warnings. + or - or comparison inside &. */ /* Origin: Joseph Myers */ /* { dg-do compile } */ /* { dg-options "-Wparentheses" } */ int foo (int); int bar (int a, int b, int c) { foo (a + b & c); /* { dg-warning "parentheses" "correct warning" } */ foo ((a + b) & c); foo (a + (b & c)); foo (1 + 2 & c); /* { dg-warning "parentheses" "correct warning" } */ foo ((1 + 2) & c); foo (1 + (2 & c)); foo (1 + 2 & 3); /* { dg-warning "parentheses" "correct warning" } */ foo ((1 + 2) & 3); foo (1 + (2 & 3)); foo (a & b + c); /* { dg-warning "parentheses" "correct warning" } */ foo ((a & b) + c); foo (a & (b + c)); foo (1 & 2 + c); /* { dg-warning "parentheses" "correct warning" } */ foo ((1 & 2) + c); foo (1 & (2 + c)); foo (1 & 2 + 3); /* { dg-warning "parentheses" "correct warning" } */ foo ((1 & 2) + 3); foo (1 & (2 + 3)); foo (a - b & c); /* { dg-warning "parentheses" "correct warning" } */ foo ((a - b) & c); foo (a - (b & c)); foo (1 - 2 & c); /* { dg-warning "parentheses" "correct warning" } */ foo ((1 - 2) & c); foo (1 - (2 & c)); foo (1 - 2 & 3); /* { dg-warning "parentheses" "correct warning" } */ foo ((1 - 2) & 3); foo (1 - (2 & 3)); foo (a & b - c); /* { dg-warning "parentheses" "correct warning" } */ foo ((a & b) - c); foo (a & (b - c)); foo (1 & 2 - c); /* { dg-warning "parentheses" "correct warning" } */ foo ((1 & 2) - c); foo (1 & (2 - c)); foo (1 & 2 - 3); /* { dg-warning "parentheses" "correct warning" } */ foo ((1 & 2) - 3); foo (1 & (2 - 3)); foo (a < b & c); /* { dg-warning "parentheses" "correct warning" } */ foo ((a < b) & c); foo (a < (b & c)); foo (1 < 2 & c); /* { dg-warning "parentheses" "correct warning" } */ foo ((1 < 2) & c); foo (1 < (2 & c)); foo (1 < 2 & 3); /* { dg-warning "parentheses" "correct warning" } */ foo ((1 < 2) & 3); foo (1 < (2 & 3)); foo (a & b < c); /* { dg-warning "parentheses" "correct warning" } */ foo ((a & b) < c); foo (a & (b < c)); foo (1 & 2 < c); /* { dg-warning "parentheses" "correct warning" } */ foo ((1 & 2) < c); foo (1 & (2 < c)); foo (1 & 2 < 3); /* { dg-warning "parentheses" "correct warning" } */ foo ((1 & 2) < 3); foo (1 & (2 < 3)); foo (a == b & c); /* { dg-warning "parentheses" "correct warning" } */ foo ((a == b) & c); foo (a == (b & c)); foo (1 == 2 & c); /* { dg-warning "parentheses" "correct warning" } */ foo ((1 == 2) & c); foo (1 == (2 & c)); foo (1 == 2 & 3); /* { dg-warning "parentheses" "correct warning" } */ foo ((1 == 2) & 3); foo (1 == (2 & 3)); foo (a & b == c); /* { dg-warning "parentheses" "correct warning" } */ foo ((a & b) == c); foo (a & (b == c)); foo (1 & 2 == c); /* { dg-warning "parentheses" "correct warning" } */ foo ((1 & 2) == c); foo (1 & (2 == c)); foo (1 & 2 == 3); /* { dg-warning "parentheses" "correct warning" } */ foo ((1 & 2) == 3); foo (1 & (2 == 3)); foo (a != b & c); /* { dg-warning "parentheses" "correct warning" } */ foo ((a != b) & c); foo (a != (b & c)); foo (1 != 2 & c); /* { dg-warning "parentheses" "correct warning" } */ foo ((1 != 2) & c); foo (1 != (2 & c)); foo (1 != 2 & 3); /* { dg-warning "parentheses" "correct warning" } */ foo ((1 != 2) & 3); foo (1 != (2 & 3)); foo (a & b != c); /* { dg-warning "parentheses" "correct warning" } */ foo ((a & b) != c); foo (a & (b != c)); foo (1 & 2 != c); /* { dg-warning "parentheses" "correct warning" } */ foo ((1 & 2) != c); foo (1 & (2 != c)); foo (1 & 2 != 3); /* { dg-warning "parentheses" "correct warning" } */ foo ((1 & 2) != 3); foo (1 & (2 != 3)); }