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author | Luke Shumaker <lukeshu@sbcglobal.net> | 2016-06-12 08:43:34 -0400 |
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committer | Luke Shumaker <lukeshu@sbcglobal.net> | 2016-06-12 08:43:34 -0400 |
commit | 670b77ddfab0f4eddbe539964aba83d446d48129 (patch) | |
tree | 5b159fe9bd52169e05cdc60db5a48a5c5ac9602a /src/test/test-sizeof.c | |
parent | 23708daf3ba69ba9880102b4f720a3842883332e (diff) | |
parent | 34dbdee3b2f122d2ef903a368b172e75f962b66a (diff) |
Merge branch 'lukeshu/postmove' into 'lukeshu/master'
Diffstat (limited to 'src/test/test-sizeof.c')
-rw-r--r-- | src/test/test-sizeof.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/test/test-sizeof.c b/src/test/test-sizeof.c new file mode 100644 index 0000000000..8f99a13772 --- /dev/null +++ b/src/test/test-sizeof.c @@ -0,0 +1,53 @@ +/*** + This file is part of systemd. + + Copyright 2016 Zbigniew Jędrzejewski-Szmek + + systemd 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. + + systemd 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 systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include "log.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) \ + log_info("%s → %zu bits%s", STRINGIFY(t), \ + sizeof(t)*CHAR_BIT, \ + strstr(STRINGIFY(t), "signed") ? "" : \ + ((t)-1 < (t)0 ? ", signed" : ", unsigned")); + +int main(void) { + info(char); + info(signed char); + info(unsigned char); + info(short unsigned); + info(unsigned); + info(long unsigned); + info(long long unsigned); + + info(float); + info(double); + info(long double); + + info(size_t); + info(ssize_t); + info(time_t); + info(usec_t); + + return 0; +} |