[RFC dwarves 2/4] dwarves: move ARRAY_SIZE() to dwarves.h

[Alan Maguire <alan.maguire@oracle.com>]

...so it can be used by pahole.c too.

Signed-off-by: Alan Maguire <alan.maguire@oracle.com>
---
 dwarves.c | 16 ----------------
 dwarves.h | 16 ++++++++++++++++
 2 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/dwarves.c b/dwarves.c
index 218367b..9f97eda 100644
--- a/dwarves.c
+++ b/dwarves.c
@@ -2094,22 +2094,6 @@ int cus__load_file(struct cus *cus, struct conf_load *conf,
 	_min1 < _min2 ? _min1 : _min2; })
 #endif
 
-/* Force a compilation error if condition is true, but also produce a
-   result (of value 0 and type size_t), so the expression can be used
-   e.g. in a structure initializer (or where-ever else comma expressions
-   aren't permitted). */
-#define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); }))
-
-/* Are two types/vars the same type (ignoring qualifiers)? */
-#ifndef __same_type
-# define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b))
-#endif
-
-/* &a[0] degrades to a pointer: a different type from an array */
-#define __must_be_array(a)	BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
-
-#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
-
 #ifndef DW_LANG_C89
 #define DW_LANG_C89		0x0001
 #endif
diff --git a/dwarves.h b/dwarves.h
index db68161..857b37c 100644
--- a/dwarves.h
+++ b/dwarves.h
@@ -19,6 +19,22 @@
 #include "list.h"
 #include "rbtree.h"
 
+/* Force a compilation error if condition is true, but also produce a
+   result (of value 0 and type size_t), so the expression can be used
+   e.g. in a structure initializer (or where-ever else comma expressions
+   aren't permitted). */
+#define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); }))
+
+/* Are two types/vars the same type (ignoring qualifiers)? */
+#ifndef __same_type
+# define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b))
+#endif
+
+/* &a[0] degrades to a pointer: a different type from an array */
+#define __must_be_array(a)      BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
+
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
+
 struct cu;
 
 enum load_steal_kind {
-- 
2.31.1