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author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2018-12-27 15:49:30 +0000 |
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committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2018-12-27 15:49:30 +0000 |
commit | e14d51045326808a48d43d7e0b45860cd33e2b17 (patch) | |
tree | 90b47e500bf7b1ccffae92fc2105cea5b8b7b61f /bits/uintn-identity.h | |
parent | c949e9c224c0fc890982cc42797ae868b04faa00 (diff) | |
parent | 963c37d5c0eb62b38f8764b23931c0dcdd497a13 (diff) |
Merge commit 'refs/top-bases/t/context_functions' into t/context_functions
Diffstat (limited to 'bits/uintn-identity.h')
-rw-r--r-- | bits/uintn-identity.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/bits/uintn-identity.h b/bits/uintn-identity.h new file mode 100644 index 0000000000..2ce92351a9 --- /dev/null +++ b/bits/uintn-identity.h @@ -0,0 +1,50 @@ +/* Inline functions to return unsigned integer values unchanged. + Copyright (C) 2017-2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#if !defined _NETINET_IN_H && !defined _ENDIAN_H +# error "Never use <bits/uintn-identity.h> directly; include <netinet/in.h> or <endian.h> instead." +#endif + +#ifndef _BITS_UINTN_IDENTITY_H +#define _BITS_UINTN_IDENTITY_H 1 + +#include <bits/types.h> + +/* These inline functions are to ensure the appropriate type + conversions and associated diagnostics from macros that convert to + a given endianness. */ + +static __inline __uint16_t +__uint16_identity (__uint16_t __x) +{ + return __x; +} + +static __inline __uint32_t +__uint32_identity (__uint32_t __x) +{ + return __x; +} + +static __inline __uint64_t +__uint64_identity (__uint64_t __x) +{ + return __x; +} + +#endif /* _BITS_UINTN_IDENTITY_H. */ |