clang/test/Sema/warn-bitwise-negation-bool.c

   1 // RUN: %clang_cc1 -x c -fsyntax-only -verify -Wbool-operation %s
   2 // RUN: %clang_cc1 -x c -fsyntax-only -verify -Wall %s
   3 // RUN: %clang_cc1 -x c -fsyntax-only -Wbool-operation -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s
   4 // RUN: %clang_cc1 -x c++ -fsyntax-only -verify -Wbool-operation %s
   5 // RUN: %clang_cc1 -x c++ -fsyntax-only -verify -Wall %s
   6 // RUN: %clang_cc1 -x c++ -fsyntax-only -Wbool-operation -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s
   7
   8 #ifdef __cplusplus
   9 typedef bool boolean;
  10 #else
  11 typedef _Bool boolean;
  12 #endif
  13
  14 void test(boolean b, int i) {
  15   b = ~b; // expected-warning {{bitwise negation of a boolean expression always evaluates to 'true'; did you mean logical negation?}}
  16   // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:7-[[@LINE-1]]:8}:"!"
  17   b = ~(b); // expected-warning {{bitwise negation of a boolean expression always evaluates to 'true'; did you mean logical negation?}}
  18   // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:7-[[@LINE-1]]:8}:"!"
  19   b = ~i;
  20   i = ~b; // expected-warning {{bitwise negation of a boolean expression; did you mean logical negation?}}
  21   // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:7-[[@LINE-1]]:8}:"!"
  22   b = ~(i > 4); // expected-warning {{bitwise negation of a boolean expression always evaluates to 'true'; did you mean logical negation?}}
  23   // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:7-[[@LINE-1]]:8}:"!"
  24 }