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6a1cefac | 1 | /* Inline functions to return unsigned integer values unchanged. |
581c785b | 2 | Copyright (C) 2017-2022 Free Software Foundation, Inc. |
6a1cefac JM |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
6a1cefac JM |
18 | |
19 | #if !defined _NETINET_IN_H && !defined _ENDIAN_H | |
20 | # error "Never use <bits/uintn-identity.h> directly; include <netinet/in.h> or <endian.h> instead." | |
21 | #endif | |
22 | ||
23 | #ifndef _BITS_UINTN_IDENTITY_H | |
24 | #define _BITS_UINTN_IDENTITY_H 1 | |
25 | ||
26 | #include <bits/types.h> | |
27 | ||
28 | /* These inline functions are to ensure the appropriate type | |
29 | conversions and associated diagnostics from macros that convert to | |
30 | a given endianness. */ | |
31 | ||
32 | static __inline __uint16_t | |
33 | __uint16_identity (__uint16_t __x) | |
34 | { | |
35 | return __x; | |
36 | } | |
37 | ||
38 | static __inline __uint32_t | |
39 | __uint32_identity (__uint32_t __x) | |
40 | { | |
41 | return __x; | |
42 | } | |
43 | ||
44 | static __inline __uint64_t | |
45 | __uint64_identity (__uint64_t __x) | |
46 | { | |
47 | return __x; | |
48 | } | |
49 | ||
50 | #endif /* _BITS_UINTN_IDENTITY_H. */ |