llvm-for-llvmta/tools/clang/test/SemaCXX/warn-div-or-rem-by-zero.cpp

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2022-04-25 13:02:35 +02:00
// RUN: %clang_cc1 -verify %s
// RUN: %clang_cc1 -std=c++11 -verify %s
// RUN: %clang_cc1 -std=c++1y -verify %s
void div() {
(void)(42 / 0); // expected-warning{{division by zero is undefined}}
(void)(42 / false); // expected-warning{{division by zero is undefined}}
(void)(42 / !1); // expected-warning{{division by zero is undefined}}
(void)(42 / (1 - 1)); // expected-warning{{division by zero is undefined}}
(void)(42 / !(1 + 1)); // expected-warning{{division by zero is undefined}}
(void)(42 / (int)(0.0)); // expected-warning{{division by zero is undefined}}
}
void rem() {
(void)(42 % 0); // expected-warning{{remainder by zero is undefined}}
(void)(42 % false); // expected-warning{{remainder by zero is undefined}}
(void)(42 % !1); // expected-warning{{remainder by zero is undefined}}
(void)(42 % (1 - 1)); // expected-warning{{remainder by zero is undefined}}
(void)(42 % !(1 + 1)); // expected-warning{{remainder by zero is undefined}}
(void)(42 % (int)(0.0)); // expected-warning{{remainder by zero is undefined}}
}