Merge pull request #11827 from keszybz/pkgconfig-variables

[thirdparty/systemd.git] / src / test / test-sizeof.c

diff --git a/src/test/test-sizeof.c b/src/test/test-sizeof.c
index aed6db8423da0e1bbf0ad5f075b65ba361a3600c..35b087653ef030d1d6cd5b6e56937bafd8f4540c 100644 (file)
--- a/src/test/test-sizeof.c
+++ b/src/test/test-sizeof.c
@@ -1,26 +1,11 @@
 /* SPDX-License-Identifier: LGPL-2.1+ */
-/***
-  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 <stdio.h>
 #include <string.h>
 
+#define __STDC_WANT_IEC_60559_TYPES_EXT__
+#include <float.h>
+
 #include "time-util.h"
 
 /* Print information about various types. Useful when diagnosing
@@ -28,18 +13,24 @@
 
 #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"));
+#define info(t)                                                         \
+        printf("%s → %zu bits%s, %zu byte alignment\n", STRINGIFY(t),   \
+               sizeof(t)*CHAR_BIT,                                      \
+               strstr(STRINGIFY(t), "signed") ? "" :                    \
+               (t)-1 < (t)0 ? ", signed" : ", unsigned",                \
+               __alignof__(t))
 
 enum Enum {
         enum_value,
 };
 
 enum BigEnum {
-        big_enum_value = UINT64_C(-1),
+        big_enum_value = UINT64_C(1),
+};
+
+enum BigEnum2 {
+        big_enum2_pos = UINT64_C(1),
+        big_enum2_neg = UINT64_C(-1),
 };
 
 int main(void) {
@@ -57,6 +48,14 @@ int main(void) {
         info(double);
         info(long double);
 
+#ifdef FLT128_MAX
+        info(_Float128);
+        info(_Float64);
+        info(_Float64x);
+        info(_Float32);
+        info(_Float32x);
+#endif
+
         info(size_t);
         info(ssize_t);
         info(time_t);
@@ -68,6 +67,10 @@ int main(void) {
 
         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;
 }