File: __null.cpp

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (21 lines) | stat: -rw-r--r-- 669 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 -triple x86_64-unknown-unknown %s -Wno-null-conversion -fsyntax-only -verify
// RUN: %clang_cc1 -triple i686-unknown-unknown %s -Wno-null-conversion -fsyntax-only -verify

void f() {
  int* i = __null;
  i = __null;
  int i2 = __null;

  // Verify statically that __null is the right size
  int a[sizeof(typeof(__null)) == sizeof(void*)? 1 : -1];
  
  // Verify that null is evaluated as 0.
  int b[__null ? -1 : 1];
}

struct A {};

void g() {
  (void)(0 ? __null : A()); // expected-error {{non-pointer operand type 'A' incompatible with NULL}}
  (void)(0 ? A(): __null); // expected-error {{non-pointer operand type 'A' incompatible with NULL}}
}