| 1 | /* Copyright (C) 2000-2022 Free Software Foundation, Inc. |
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| 2 | This file is part of the GNU C Library. |
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| 3 | |
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| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |
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| 9 | The GNU C Library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Lesser General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU Lesser General Public |
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| 15 | License along with the GNU C Library; if not, see |
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| 16 | <https://www.gnu.org/licenses/>. */ |
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| 17 | |
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| 18 | #include <byteswap.h> |
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| 19 | #include <stdio.h> |
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| 20 | |
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| 21 | extern unsigned long long int wash (unsigned long long int a); |
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| 22 | |
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| 23 | int |
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| 24 | do_test (void) |
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| 25 | { |
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| 26 | int result = 0; |
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| 27 | |
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| 28 | /* Test the functions with constant arguments. */ |
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| 29 | if (bswap_16 (0x1234) != 0x3412) |
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| 30 | { |
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| 31 | puts (s: "bswap_16 (constant) flunked" ); |
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| 32 | result = 1; |
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| 33 | } |
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| 34 | if (bswap_32 (0x12345678) != 0x78563412) |
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| 35 | { |
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| 36 | puts (s: "bswap_32 (constant) flunked" ); |
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| 37 | result = 1; |
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| 38 | } |
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| 39 | if (bswap_64 (0x1234567890abcdefULL) != 0xefcdab9078563412ULL) |
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| 40 | { |
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| 41 | puts (s: "bswap_64 (constant) flunked" ); |
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| 42 | result = 1; |
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| 43 | } |
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| 44 | |
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| 45 | /* Test the functions with non-constant arguments. */ |
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| 46 | if (bswap_16 (wash (0x1234)) != 0x3412) |
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| 47 | { |
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| 48 | puts (s: "bswap_16 (non-constant) flunked" ); |
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| 49 | result = 1; |
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| 50 | } |
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| 51 | if (bswap_32 (wash (0x12345678)) != 0x78563412) |
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| 52 | { |
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| 53 | puts (s: "bswap_32 (non-constant) flunked" ); |
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| 54 | result = 1; |
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| 55 | } |
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| 56 | if (bswap_64 (wash (0x1234567890abcdefULL)) != 0xefcdab9078563412ULL) |
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| 57 | { |
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| 58 | puts (s: "bswap_64 (non-constant) flunked" ); |
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| 59 | result = 1; |
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| 60 | } |
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| 61 | |
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| 62 | return result; |
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| 63 | } |
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| 64 | |
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| 65 | |
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| 66 | unsigned long long int |
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| 67 | wash (unsigned long long int a) |
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| 68 | { |
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| 69 | /* Do nothing. This function simply exists to avoid that the compiler |
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| 70 | regards the argument to the bswap_*() functions as constant. */ |
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| 71 | return a + 0; |
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| 72 | } |
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| 73 | |
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| 74 | #include <support/test-driver.c> |
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| 75 | |
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