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-rw-r--r--writeups/unaligned-mem/pack.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/writeups/unaligned-mem/pack.c b/writeups/unaligned-mem/pack.c
new file mode 100644
index 0000000..2b39d4d
--- /dev/null
+++ b/writeups/unaligned-mem/pack.c
@@ -0,0 +1,28 @@
+#include <stdio.h>
+#include <stdbool.h>
+
+#if 0
+#pragma pack(1)
+#endif
+struct {
+ unsigned a;
+ bool b;
+ unsigned short c;
+ unsigned d;
+} a;
+
+int main(void) {
+ a.a = 0xAAAAAAAA;
+ a.b = true;
+ a.c = 0xFFFF;
+ a.d = 0x55555555;
+
+ for (unsigned i = 1; i <= sizeof(a); i += 1) {
+ printf("%02x ", ((unsigned char*)&a)[i - 1]);
+ if (i % 4 == 0) {
+ printf("\n");
+ }
+ }
+
+ return 0;
+}