File: warn-address.cpp

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (20 lines) | stat: -rw-r--r-- 817 bytes parent folder | download | duplicates (39) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
 
// RUN: %clang_cc1 -fsyntax-only -verify -Wno-bool-conversion -Wno-string-compare -Wno-tautological-compare -Waddress %s
// RUN: %clang_cc1 -fsyntax-only -verify %s

void foo();
int arr[5];
int global;
const char* str = "";

void test() {
  if (foo) {}            // expected-warning{{always evaluate to 'true'}} \
                         // expected-note{{silence}}
  if (arr) {}            // expected-warning{{always evaluate to 'true'}}
  if (&global) {}        // expected-warning{{always evaluate to 'true'}}
  if (foo == 0) {}       // expected-warning{{always false}} \
                         // expected-note{{silence}}
  if (arr == 0) {}       // expected-warning{{always false}}
  if (&global == 0) {}   // expected-warning{{always false}}

  if (str == "foo") {}   // expected-warning{{unspecified}}
}