clang/test/SemaCXX/warn-div-or-rem-by-zero.cpp

   1 // RUN: %clang_cc1 -verify %s
   2 // RUN: %clang_cc1 -std=c++11 -verify %s
   3 // RUN: %clang_cc1 -std=c++1y -verify %s
   4
   5 void div() {
   6   (void)(42 / 0); // expected-warning{{division by zero is undefined}}
   7   (void)(42 / false); // expected-warning{{division by zero is undefined}}
   8   (void)(42 / !1); // expected-warning{{division by zero is undefined}}
   9   (void)(42 / (1 - 1)); // expected-warning{{division by zero is undefined}}
  10   (void)(42 / !(1 + 1)); // expected-warning{{division by zero is undefined}}
  11   (void)(42 / (int)(0.0)); // expected-warning{{division by zero is undefined}}
  12 }
  13
  14 void rem() {
  15   (void)(42 % 0); // expected-warning{{remainder by zero is undefined}}
  16   (void)(42 % false); // expected-warning{{remainder by zero is undefined}}
  17   (void)(42 % !1); // expected-warning{{remainder by zero is undefined}}
  18   (void)(42 % (1 - 1)); // expected-warning{{remainder by zero is undefined}}
  19   (void)(42 % !(1 + 1)); // expected-warning{{remainder by zero is undefined}}
  20   (void)(42 % (int)(0.0)); // expected-warning{{remainder by zero is undefined}}
  21 }