# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1664641641 -7200
# Node ID 0f71c08daabab1fc3fcab1555ccc61fdd1cd7c66
# Parent  c6afb5edab017e941ad99a5a38bbf8d4311a462e
Calculate alignment offsets instead of showing pointer values.

diff -r c6afb5edab01 -r 0f71c08daaba tests/dstest_align.cc
--- a/tests/dstest_align.cc	Sat Oct 01 18:22:03 2022 +0200
+++ b/tests/dstest_align.cc	Sat Oct 01 18:27:21 2022 +0200
@@ -1,6 +1,8 @@
 #include <stdio.h>
 #include <stdint.h>
 
+#define OFFSET(obj, mem) ((char *) &(obj)->mem - (char *) obj)
+
 struct A
 {
   uint32_t a;
@@ -31,21 +33,21 @@
   struct A *ma = (struct A *) m;
   struct A *ma1 = (struct A *) (m + 1);
 
-  printf("a.a @ %p = %x\n", &a.a, a.a);
-  printf("a.b @ %p = %llx\n", &a.b, a.b);
-  printf("a.c @ %p = %llx\n\n", &a.c, a.c);
-  printf("b.a @ %p = %x\n", &b.a, b.a);
-  printf("b.b @ %p = %llx\n", &b.b, b.b);
-  printf("b.c @ %p = %llx\n\n", &b.c, b.c);
-  printf("c.a @ %p = %x\n", &c.a, c.a);
-  printf("c.b @ %p = %x\n", &c.b, c.b);
-  printf("c.c @ %p = %llx\n\n", &c.c, c.c);
-  printf("ma.a @ %p = %x\n", &ma->a, ma->a);
-  printf("ma.b @ %p = %llx\n", &ma->b, ma->b);
-  printf("ma.c @ %p = %llx\n\n", &ma->c, ma->c);
-  printf("ma1.a @ %p = %x\n", &ma1->a, ma1->a);
-  printf("ma1.b @ %p = %llx\n", &ma1->b, ma1->b);
-  printf("ma1.c @ %p = %llx\n\n", &ma1->c, ma1->c);
+  printf("a.a @ offset %d = %x\n", OFFSET(&a, a), a.a);
+  printf("a.b @ offset %d = %llx\n", OFFSET(&a, b), a.b);
+  printf("a.c @ offset %d = %llx\n\n", OFFSET(&a, c), a.c);
+  printf("b.a @ offset %d = %x\n", OFFSET(&b, a), b.a);
+  printf("b.b @ offset %d = %llx\n", OFFSET(&b, b), b.b);
+  printf("b.c @ offset %d = %llx\n\n", OFFSET(&b, c), b.c);
+  printf("c.a @ offset %d = %x\n", OFFSET(&c, a), c.a);
+  printf("c.b @ offset %d = %x\n", OFFSET(&c, b), c.b);
+  printf("c.c @ offset %d = %llx\n\n", OFFSET(&c, c), c.c);
+  printf("ma.a @ offset %d = %x\n", OFFSET(ma, a), ma->a);
+  printf("ma.b @ offset %d = %llx\n", OFFSET(ma, b), ma->b);
+  printf("ma.c @ offset %d = %llx\n\n", OFFSET(ma, c), ma->c);
+  printf("ma1.a @ offset %d = %x\n", OFFSET(ma1, a), ma1->a);
+  printf("ma1.b @ offset %d = %llx\n", OFFSET(ma1, b), ma1->b);
+  printf("ma1.c @ offset %d = %llx\n\n", OFFSET(ma1, c), ma1->c);
 
   return 0;
 }