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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 //  -*- mode:C; c-basic-offset:4; tab-width:4; intent-tabs-mode:nil;  -*-
8 // CONFIG
9 
10 #import <stdio.h>
11 #import <stdlib.h>
12 #import <string.h>
13 
14 typedef struct {
15     unsigned long ps[30];
16     int qs[30];
17 } BobTheStruct;
18 
main(int argc,const char * argv[])19 int main (int argc, const char * argv[]) {
20     BobTheStruct inny;
21     BobTheStruct outty;
22     BobTheStruct (^copyStruct)(BobTheStruct);
23     int i;
24 
25     memset(&inny, 0xA5, sizeof(inny));
26     memset(&outty, 0x2A, sizeof(outty));
27 
28     for(i=0; i<30; i++) {
29         inny.ps[i] = i * i * i;
30         inny.qs[i] = -i * i * i;
31     }
32 
33     copyStruct = ^(BobTheStruct aBigStruct){ return aBigStruct; };  // pass-by-value intrinsically copies the argument
34 
35     outty = copyStruct(inny);
36 
37     if ( &inny == &outty ) {
38         printf("%s: struct wasn't copied.", argv[0]);
39         exit(1);
40     }
41     for(i=0; i<30; i++) {
42         if ( (inny.ps[i] != outty.ps[i]) || (inny.qs[i] != outty.qs[i]) ) {
43             printf("%s: struct contents did not match.", argv[0]);
44             exit(1);
45         }
46     }
47 
48     printf("%s: success\n", argv[0]);
49 
50     return 0;
51 }
52