compiler-rt/test/BlocksRuntime/recursive-test.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 // CONFIG open rdar://6416474
   7 // was  rdar://5847976
   8 // was  rdar://6348320
   9
  10 #include <stdio.h>
  11 #include <Block.h>
  12
  13 int verbose = 0;
  14
  15 int main(int argc, char* argv[]) {
  16
  17         if (argc > 1) verbose = 1;
  18
  19         __block void (^recursive_local_block)(int);
  20
  21         if (verbose) printf("recursive_local_block is a local recursive block\n");
  22         recursive_local_block = ^(int i) {
  23                 if (verbose) printf("%d\n", i);
  24                 if (i > 0) {
  25                         recursive_local_block(i - 1);
  26                 }
  27     };
  28
  29         if (verbose) printf("recursive_local_block's address is %p, running it:\n", (void*)recursive_local_block);
  30         recursive_local_block(5);
  31
  32         if (verbose) printf("Creating other_local_block: a local block that calls recursive_local_block\n");
  33
  34         void (^other_local_block)(int) = ^(int i) {
  35                 if (verbose) printf("other_local_block running\n");
  36                 recursive_local_block(i);
  37     };
  38
  39         if (verbose) printf("other_local_block's address is %p, running it:\n", (void*)other_local_block);
  40
  41         other_local_block(5);
  42
  43 #if __APPLE_CC__ >= 5627
  44         if (verbose) printf("Creating other_copied_block: a Block_copy of a block that will call recursive_local_block\n");
  45
  46         void (^other_copied_block)(int) = Block_copy(^(int i) {
  47                 if (verbose) printf("other_copied_block running\n");
  48                 recursive_local_block(i);
  49     });
  50
  51         if (verbose) printf("other_copied_block's address is %p, running it:\n", (void*)other_copied_block);
  52
  53         other_copied_block(5);
  54 #endif
  55
  56         __block void (^recursive_copy_block)(int);
  57
  58         if (verbose) printf("Creating recursive_copy_block: a Block_copy of a block that will call recursive_copy_block recursively\n");
  59
  60         recursive_copy_block = Block_copy(^(int i) {
  61                 if (verbose) printf("%d\n", i);
  62                 if (i > 0) {
  63                         recursive_copy_block(i - 1);
  64                 }
  65     });
  66
  67         if (verbose) printf("recursive_copy_block's address is %p, running it:\n", (void*)recursive_copy_block);
  68
  69         recursive_copy_block(5);
  70
  71         printf("%s: Success\n", argv[0]);
  72         return 0;
  73 }