move ARRAY_SIZE macro to types.h

The ARRAY_SIZE macro was defined in several target files, so move it
to types.h.

This patch also removes two other identical macros: DIM (from jtag.h)
and asizeof (from arm11.h).

1 files changed, 10 insertions, 0 deletions

diff --git a/src/helper/types.h b/src/helper/types.h
index 8f6283b5..96a923b8 100644
--- a/src/helper/types.h
+++ b/src/helper/types.h
@@ -61,6 +61,16 @@ typedef bool _Bool;
 
 
 /**
+ * Compute the number of elements of a variable length array.
+ * <code>
+ * const char *strs[] = { "a", "b", "c" };
+ * unsigned num_strs = ARRAY_SIZE(strs);
+ * </code>
+ */
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof(*(x)))
+
+
+/**
  * Cast a member of a structure out to the containing structure.
  * @param ptr The pointer to the member.
  * @param type The type of the container struct this is embedded in.