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     BobTheStruct inny;
20     BobTheStruct outty;
21     BobTheStruct (^copyStruct)(BobTheStruct);
22     int i;
23 
24     memset(&inny, 0xA5, sizeof(inny));
25     memset(&outty, 0x2A, sizeof(outty));
26 
27     for(i=0; i<30; i++) {
28         inny.ps[i] = i * i * i;
29         inny.qs[i] = -i * i * i;
30     }
31 
32     copyStruct = ^(BobTheStruct aBigStruct){ return aBigStruct; };  // pass-by-value intrinsically copies the argument
33 
34     outty = copyStruct(inny);
35 
36     if ( &inny == &outty ) {
37         printf("%s: struct wasn't copied.", argv[0]);
38         exit(1);
39     }
40     for(i=0; i<30; i++) {
41         if ( (inny.ps[i] != outty.ps[i]) || (inny.qs[i] != outty.qs[i]) ) {
42             printf("%s: struct contents did not match.", argv[0]);
43             exit(1);
44         }
45     }
46 
47     printf("%s: success\n", argv[0]);
48 
49     return 0;
50 }
51