File: dr158.c

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-22
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,799,624 kB
  • sloc: cpp: 6,428,607; ansic: 1,383,196; asm: 793,408; python: 223,504; objc: 75,364; f90: 60,502; lisp: 33,869; pascal: 15,282; sh: 9,684; perl: 7,453; ml: 4,937; awk: 3,523; makefile: 2,889; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (22 lines) | stat: -rw-r--r-- 823 bytes parent folder | download | duplicates (13) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
 
/* RUN: %clang_cc1 -std=c89 -pedantic -Wno-c11-extensions -verify -emit-llvm -o -  %s | FileCheck %s
   RUN: %clang_cc1 -std=c99 -pedantic -Wno-c11-extensions -verify -emit-llvm -o -  %s | FileCheck %s
   RUN: %clang_cc1 -std=c11 -pedantic -verify -emit-llvm -o -  %s | FileCheck %s
   RUN: %clang_cc1 -std=c17 -pedantic -verify -emit-llvm -o -  %s | FileCheck %s
   RUN: %clang_cc1 -std=c2x -pedantic -verify -emit-llvm -o -  %s | FileCheck %s
 */

/* expected-no-diagnostics */

/* WG14 DR158: yes
 * Null pointer conversions
 */
void dr158(void) {
  int Val = (void *)0 == (int *)0;
  /* CHECK: %[[VAL:.+]] = alloca i32
     CHECK: store i32 1, ptr %[[VAL]]
   */

  (void)_Generic((int *)0, int * : 1); /* picks correct association */
  (void)_Generic((1 ? 0 : (int *)0), int * : 1); /* picks correct association */
}