| 1 | /* Inline functions to return unsigned integer values unchanged. | 
| 2 |    Copyright (C) 2017-2020 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.  */ | 
| 51 |  |