74 lines
2.0 KiB
C
74 lines
2.0 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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/***
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This file is part of systemd.
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Copyright 2016 Zbigniew Jędrzejewski-Szmek
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <stdio.h>
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#include <string.h>
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#include "time-util.h"
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/* Print information about various types. Useful when diagnosing
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* gcc diagnostics on an unfamiliar architecture. */
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#pragma GCC diagnostic ignored "-Wtype-limits"
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#define info(t) \
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printf("%s → %zu bits%s\n", STRINGIFY(t), \
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sizeof(t)*CHAR_BIT, \
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strstr(STRINGIFY(t), "signed") ? "" : \
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((t)-1 < (t)0 ? ", signed" : ", unsigned"));
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enum Enum {
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enum_value,
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};
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enum BigEnum {
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big_enum_value = UINT64_C(-1),
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};
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int main(void) {
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info(char);
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info(signed char);
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info(unsigned char);
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info(short unsigned);
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info(unsigned);
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info(long unsigned);
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info(long long unsigned);
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info(__syscall_ulong_t);
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info(__syscall_slong_t);
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info(float);
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info(double);
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info(long double);
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info(size_t);
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info(ssize_t);
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info(time_t);
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info(usec_t);
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info(__time_t);
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info(pid_t);
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info(uid_t);
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info(gid_t);
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info(enum Enum);
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info(enum BigEnum);
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return 0;
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}
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