clang/test/Sema/logical-op-parentheses.c

   1 // RUN: %clang_cc1 -fsyntax-only -verify %s -DSILENCE
   2 // RUN: %clang_cc1 -fsyntax-only -verify %s -Wlogical-op-parentheses
   3 // RUN: %clang_cc1 -fsyntax-only -verify %s -Wparentheses
   4 // RUN: %clang_cc1 -fsyntax-only -fdiagnostics-parseable-fixits %s -Wlogical-op-parentheses 2>&1 | FileCheck %s
   5
   6 #ifdef SILENCE
   7 // expected-no-diagnostics
   8 #endif
   9
  10 void logical_op_parentheses(unsigned i) {
  11   (void)(i ||
  12              i && i);
  13 #ifndef SILENCE
  14   // expected-warning@-2 {{'&&' within '||'}}
  15   // expected-note@-3 {{place parentheses around the '&&' expression to silence this warning}}
  16 #endif
  17   // CHECK: fix-it:"{{.*}}":{[[@LINE-5]]:14-[[@LINE-5]]:14}:"("
  18   // CHECK: fix-it:"{{.*}}":{[[@LINE-6]]:20-[[@LINE-6]]:20}:")"
  19
  20   (void)(i || i && "w00t");
  21   (void)("w00t" && i || i);
  22
  23   (void)(i || i && "w00t" || i);
  24 #ifndef SILENCE
  25   // expected-warning@-2 {{'&&' within '||'}}
  26   // expected-note@-3 {{place parentheses around the '&&' expression to silence this warning}}
  27 #endif
  28   // CHECK: fix-it:"{{.*}}":{[[@LINE-5]]:15-[[@LINE-5]]:15}:"("
  29   // CHECK: fix-it:"{{.*}}":{[[@LINE-6]]:26-[[@LINE-6]]:26}:")"
  30
  31   (void)(i || "w00t" && i || i);
  32 #ifndef SILENCE
  33   // expected-warning@-2 {{'&&' within '||'}}
  34   // expected-note@-3 {{place parentheses around the '&&' expression to silence this warning}}
  35 #endif
  36   // CHECK: fix-it:"{{.*}}":{[[@LINE-5]]:15-[[@LINE-5]]:15}:"("
  37   // CHECK: fix-it:"{{.*}}":{[[@LINE-6]]:26-[[@LINE-6]]:26}:")"
  38
  39   (void)(i && i || 0);
  40   (void)(0 || i && i);
  41 }