X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=bertos%2Fcfg%2Fcompiler.h;h=5cacf1dca66fe20041b8e2fa0aa5133b66aad3d0;hb=118ad7a5237089848ff7521e48e3e21082eb92cc;hp=87cdd9425a4159617880e40e2a803d929089a397;hpb=a0709949ddb69e5e28d79f7898c37ebf281696b0;p=bertos.git

diff --git a/bertos/cfg/compiler.h b/bertos/cfg/compiler.h
index 87cdd942..5cacf1dc 100644
--- a/bertos/cfg/compiler.h
+++ b/bertos/cfg/compiler.h
@@ -490,6 +490,16 @@ typedef unsigned char page_t;    /**< Type for banked memory pages. */
 	 */
 	#define countof(a)  (sizeof(a) / sizeof(*(a)))
 #endif
+#ifndef alignof
+	/**
+	 * Return the alignment in memory of a generic data type.
+	 *
+	 * \note We need to worry about alignment when allocating memory that
+	 * will be used later by unknown objects (e.g., malloc()) or, more
+	 * generally, whenever creating generic container types.
+	 */
+	#define alignof(type) offsetof(struct { char c; type member; }, member)
+#endif
 
 /**
  * Cast a member of a structure out to the containing structure.