wparentheses-5.c

来自「用于进行gcc测试」· C语言 代码 · 共 32 行

/* Test operation of -Wparentheses.  Precedence warnings.  && inside
   ||.  */
/* Origin: Joseph Myers <[e-mail]> */

/* { 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));
}