glibc (2.38)
1 /* Inline functions to return unsigned integer values unchanged.
2 Copyright (C) 2017-2023 Free Software Foundation, Inc.
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
17 <https://www.gnu.org/licenses/>. */
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. */
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