1 // 2 // The LLVM Compiler Infrastructure 3 // 4 // This file is distributed under the University of Illinois Open Source 5 // License. See LICENSE.TXT for details. 6 7 // 8 // nullblockisa.m 9 // testObjects 10 // 11 // Created by Blaine Garst on 9/24/08. 12 // 13 // CONFIG rdar://6244520 14 15 16 17 #include <stdio.h> 18 #include <stdlib.h> 19 #include <Block_private.h> 20 21 22 void check(void (^b)(void)) { 23 struct _custom { 24 struct Block_layout layout; 25 struct Block_byref *innerp; 26 } *custom = (struct _custom *)(void *)(b); 27 //printf("block is at %p, size is %lx, inner is %p\n", (void *)b, Block_size(b), innerp); 28 if (custom->innerp->isa != (void *)NULL) { 29 printf("not a NULL __block isa\n"); 30 exit(1); 31 } 32 return; 33 } 34 35 int main(int argc, char *argv[]) { 36 37 __block int i; 38 39 check(^{ printf("%d\n", ++i); }); 40 printf("%s: success\n", argv[0]); 41 return 0; 42 } 43 44
