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/* SPDX-License-Identifier: LGPL-2.1+ */
/***
This file is part of systemd.
Copyright 2016 Zbigniew Jędrzejewski-Szmek
***/
#include <stdio.h>
#include <string.h>
#include "time-util.h"
/* Print information about various types. Useful when diagnosing
* gcc diagnostics on an unfamiliar architecture. */
#pragma GCC diagnostic ignored "-Wtype-limits"
#define info(t) \
printf("%s → %zu bits%s\n", STRINGIFY(t), \
sizeof(t)*CHAR_BIT, \
strstr(STRINGIFY(t), "signed") ? "" : \
((t)-1 < (t)0 ? ", signed" : ", unsigned"));
enum Enum {
enum_value,
};
enum BigEnum {
big_enum_value = UINT64_C(1),
};
enum BigEnum2 {
big_enum2_pos = UINT64_C(1),
big_enum2_neg = UINT64_C(-1),
};
int main(void) {
info(char);
info(signed char);
info(unsigned char);
info(short unsigned);
info(unsigned);
info(long unsigned);
info(long long unsigned);
#ifdef __GLIBC__
info(__syscall_ulong_t);
info(__syscall_slong_t);
#endif // ifdef __GLIBC__
info(float);
info(double);
info(long double);
info(size_t);
info(ssize_t);
info(time_t);
info(usec_t);
#ifdef __GLIBC__
info(__time_t);
#endif // ifdef __GLIBC__
info(pid_t);
info(uid_t);
info(gid_t);
info(enum Enum);
info(enum BigEnum);
info(enum BigEnum2);
assert_cc(sizeof(enum BigEnum2) == 8);
printf("big_enum2_pos → %zu\n", sizeof(big_enum2_pos));
printf("big_enum2_neg → %zu\n", sizeof(big_enum2_neg));
return 0;
}
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