compiler-rt/test/BlocksRuntime/copynull.c

   1 //
   2 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   3 // See https://llvm.org/LICENSE.txt for license information.
   4 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   5
   6 /*
   7  *  copynull.c
   8  *  testObjects
   9  *
  10  *  Created by Blaine Garst on 10/15/08.
  11  *
  12  */
  13
  14 #import <stdio.h>
  15 #import <Block.h>
  16 #import <Block_private.h>
  17
  18 // CONFIG rdar://6295848
  19
  20 int main(int argc, char *argv[]) {
  21
  22     void (^block)(void) = (void (^)(void))0;
  23     void (^blockcopy)(void) = Block_copy(block);
  24
  25     if (blockcopy != (void (^)(void))0) {
  26         printf("whoops, somehow we copied NULL!\n");
  27         return 1;
  28     }
  29     // make sure we can also
  30     Block_release(blockcopy);
  31     // and more secretly
  32     //_Block_destroy(blockcopy);
  33
  34     printf("%s: success\n", argv[0]);
  35     return 0;
  36 }