File: small-struct.c

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (44 lines) | stat: -rw-r--r-- 1,116 bytes parent folder | download | duplicates (27)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

//  -*- mode:C; c-basic-offset:4; tab-width:4; intent-tabs-mode:nil;  -*-
// CONFIG

#import <stdio.h>
#import <stdlib.h>
#import <string.h>

typedef struct {
  int a;
  int b;
} MiniStruct;

int main (int argc, const char * argv[]) {
    MiniStruct inny;
    MiniStruct outty;
    MiniStruct (^copyStruct)(MiniStruct);
    
    memset(&inny, 0xA5, sizeof(inny));
    memset(&outty, 0x2A, sizeof(outty));    
    
    inny.a = 12;
    inny.b = 42;

    copyStruct = ^(MiniStruct aTinyStruct){ return aTinyStruct; };  // pass-by-value intrinsically copies the argument
    
    outty = copyStruct(inny);

    if ( &inny == &outty ) {
        printf("%s: struct wasn't copied.", argv[0]);
        exit(1);
    }
    if ( (inny.a != outty.a) || (inny.b != outty.b) ) {
        printf("%s: struct contents did not match.", argv[0]);
        exit(1);
    }
    
    printf("%s: success\n", argv[0]);
    return 0;
}