Merge pull request #20303 from andir/sysconfig-example

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

diff --git a/src/test/test-sizeof.c b/src/test/test-sizeof.c
index 1020e0cb3153594bcd7f8781e129b82404afc8f2..e36bee4e8f97dbe5294956dce887d3e16cb99ca2 100644 (file)
--- a/src/test/test-sizeof.c
+++ b/src/test/test-sizeof.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-2.1+ */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 
 #include <sched.h>
 #include <stdio.h>
@@ -14,7 +14,12 @@
 /* Print information about various types. Useful when diagnosing
  * gcc diagnostics on an unfamiliar architecture. */
 
-#pragma GCC diagnostic ignored "-Wtype-limits"
+DISABLE_WARNING_TYPE_LIMITS;
+
+#define info_no_sign(t)                                                 \
+        printf("%s → %zu bits, %zu byte alignment\n", STRINGIFY(t),     \
+               sizeof(t)*CHAR_BIT,                                      \
+               __alignof__(t))
 
 #define info(t)                                                         \
         printf("%s → %zu bits%s, %zu byte alignment\n", STRINGIFY(t),   \
@@ -37,6 +42,12 @@ enum BigEnum2 {
 };
 
 int main(void) {
+        int (*function_pointer)(void);
+
+        info_no_sign(function_pointer);
+        info_no_sign(void*);
+        info(char*);
+
         info(char);
         info(signed char);
         info(unsigned char);
@@ -78,5 +89,7 @@ int main(void) {
         printf("big_enum2_pos → %zu\n", sizeof(big_enum2_pos));
         printf("big_enum2_neg → %zu\n", sizeof(big_enum2_neg));
 
+        printf("timeval: %zu\n", sizeof(struct timeval));
+        printf("timespec: %zu\n", sizeof(struct timespec));
         return 0;
 }