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 error: incompatible block pointer types assigning
9
10#import <stdio.h>
11#import <stdlib.h>
12
13int main(int argc, char *argv[]) {
14#ifndef __cplusplus
15    char (^rot13)();
16    rot13 = ^(char c) { return (char)(((c - 'a' + 13) % 26) + 'a'); };
17    char n = rot13('a');
18    char c = rot13('p');
19    if ( n != 'n' || c != 'c' ) {
20        printf("%s: rot13('a') returned %c, rot13('p') returns %c\n", argv[0], n, c);
21        exit(1);
22    }
23#else
24// yield characteristic error message for C++
25#error incompatible block pointer types assigning
26#endif
27#ifndef __clang__
28// yield characteristic error message for C++
29#error incompatible block pointer types assigning
30#endif
31    printf("%s: success\n", argv[0]);
32    exit(0);
33}
34