compiler-rt/test/BlocksRuntime/byrefstruct.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 //  -*- mode:C; c-basic-offset:4; tab-width:4; intent-tabs-mode:nil;  -*-
   7 // CONFIG
   8
   9 #import <stdio.h>
  10 #import <stdlib.h>
  11 #import <string.h>
  12
  13 typedef struct {
  14     unsigned long ps[30];
  15     int qs[30];
  16 } BobTheStruct;
  17
  18 int main (int argc, const char * argv[]) {
  19     __block BobTheStruct fiddly;
  20     BobTheStruct copy;
  21
  22     void (^incrementFiddly)() = ^{
  23         int i;
  24         for(i=0; i<30; i++) {
  25             fiddly.ps[i]++;
  26             fiddly.qs[i]++;
  27         }
  28     };
  29
  30     memset(&fiddly, 0xA5, sizeof(fiddly));
  31     memset(&copy, 0x2A, sizeof(copy));
  32
  33     int i;
  34     for(i=0; i<30; i++) {
  35         fiddly.ps[i] = i * i * i;
  36         fiddly.qs[i] = -i * i * i;
  37     }
  38
  39     copy = fiddly;
  40     incrementFiddly();
  41
  42     if ( &copy == &fiddly ) {
  43         printf("%s: struct wasn't copied.", argv[0]);
  44         exit(1);
  45     }
  46     for(i=0; i<30; i++) {
  47         //printf("[%d]: fiddly.ps: %lu, copy.ps: %lu, fiddly.qs: %d, copy.qs: %d\n", i, fiddly.ps[i], copy.ps[i], fiddly.qs[i], copy.qs[i]);
  48         if ( (fiddly.ps[i] != copy.ps[i] + 1) || (fiddly.qs[i] != copy.qs[i] + 1) ) {
  49             printf("%s: struct contents were not incremented.", argv[0]);
  50             exit(1);
  51         }
  52     }
  53
  54     printf("%s: success\n", argv[0]);
  55     return 0;
  56 }