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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-10 20:49:52 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-10 20:49:52 +0000 |
commit | 55944e5e40b1be2afc4855d8d2baf4b73d1876b5 (patch) | |
tree | 33f869f55a1b149e9b7c2b7e201867ca5dd52992 /src/fundamental/unaligned-fundamental.h | |
parent | Initial commit. (diff) | |
download | systemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.tar.xz systemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.zip |
Adding upstream version 255.4.upstream/255.4
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/fundamental/unaligned-fundamental.h')
-rw-r--r-- | src/fundamental/unaligned-fundamental.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/fundamental/unaligned-fundamental.h b/src/fundamental/unaligned-fundamental.h new file mode 100644 index 0000000..a4c810a --- /dev/null +++ b/src/fundamental/unaligned-fundamental.h @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +#pragma once + +#include <stdint.h> + +static inline uint16_t unaligned_read_ne16(const void *_u) { + const struct __attribute__((__packed__, __may_alias__)) { uint16_t x; } *u = _u; + + return u->x; +} + +static inline uint32_t unaligned_read_ne32(const void *_u) { + const struct __attribute__((__packed__, __may_alias__)) { uint32_t x; } *u = _u; + + return u->x; +} + +static inline uint64_t unaligned_read_ne64(const void *_u) { + const struct __attribute__((__packed__, __may_alias__)) { uint64_t x; } *u = _u; + + return u->x; +} + +static inline void unaligned_write_ne16(void *_u, uint16_t a) { + struct __attribute__((__packed__, __may_alias__)) { uint16_t x; } *u = _u; + + u->x = a; +} + +static inline void unaligned_write_ne32(void *_u, uint32_t a) { + struct __attribute__((__packed__, __may_alias__)) { uint32_t x; } *u = _u; + + u->x = a; +} + +static inline void unaligned_write_ne64(void *_u, uint64_t a) { + struct __attribute__((__packed__, __may_alias__)) { uint64_t x; } *u = _u; + + u->x = a; +} |