File: warn-div-or-rem-by-zero.cpp

package info (click to toggle)
llvm-toolchain-7 1%3A7.0.1-8
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 733,456 kB
  • sloc: cpp: 3,776,651; ansic: 633,271; asm: 350,301; python: 142,716; objc: 107,612; sh: 22,626; lisp: 11,056; perl: 7,999; pascal: 6,742; ml: 5,537; awk: 3,536; makefile: 2,557; cs: 2,027; xml: 841; ruby: 156
file content (21 lines) | stat: -rw-r--r-- 1,056 bytes parent folder | download | duplicates (40)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
// 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}}
}