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git.ipfire.org Git - thirdparty/systemd.git/blob - src/test/test-sizeof.c
1 /* SPDX-License-Identifier: LGPL-2.1+ */
6 #define __STDC_WANT_IEC_60559_TYPES_EXT__
11 /* Print information about various types. Useful when diagnosing
12 * gcc diagnostics on an unfamiliar architecture. */
14 #pragma GCC diagnostic ignored "-Wtype-limits"
17 printf("%s → %zu bits%s, %zu byte alignment\n", STRINGIFY(t), \
19 strstr(STRINGIFY(t), "signed") ? "" : \
20 (t)-1 < (t)0 ? ", signed" : ", unsigned", \
28 big_enum_value
= UINT64_C(1),
32 big_enum2_pos
= UINT64_C(1),
33 big_enum2_neg
= UINT64_C(-1),
43 info(long long unsigned);
44 info(__syscall_ulong_t
);
45 info(__syscall_slong_t
);
71 assert_cc(sizeof(enum BigEnum2
) == 8);
72 printf("big_enum2_pos → %zu\n", sizeof(big_enum2_pos
));
73 printf("big_enum2_neg → %zu\n", sizeof(big_enum2_neg
));