| 1 | // |
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| 2 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 3 | // See https://llvm.org/LICENSE.txt for license information. |
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| 4 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 5 | |
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| 6 | // -*- mode:C; c-basic-offset:4; tab-width:4; intent-tabs-mode:nil; -*- |
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| 7 | // CONFIG error: incompatible block pointer types assigning |
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| 8 | |
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| 9 | #import <stdio.h> |
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| 10 | #import <stdlib.h> |
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| 11 | |
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| 12 | int main(int argc, char *argv[]) { |
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| 13 | #ifndef __cplusplus |
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| 14 | char (^rot13)(); |
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| 15 | rot13 = ^(char c) { return (char)(((c - 'a' + 13) % 26) + 'a'); }; |
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| 16 | char n = rot13('a'); |
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| 17 | char c = rot13('p'); |
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| 18 | if ( n != 'n' || c != 'c' ) { |
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| 19 | printf(format: "%s: rot13('a') returned %c, rot13('p') returns %c\n" , argv[0], n, c); |
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| 20 | exit(status: 1); |
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| 21 | } |
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| 22 | #else |
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| 23 | // yield characteristic error message for C++ |
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| 24 | #error incompatible block pointer types assigning |
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| 25 | #endif |
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| 26 | #ifndef __clang__ |
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| 27 | // yield characteristic error message for C++ |
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| 28 | #error incompatible block pointer types assigning |
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| 29 | #endif |
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| 30 | printf(format: "%s: success\n" , argv[0]); |
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| 31 | exit(status: 0); |
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| 32 | } |
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| 33 | |
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