#define SOD__IGNORE(var) ((void)(var))
+/* --- @SOD__NORETURN@ --- *
+ *
+ * Use: Marks functions which are not expected to return.
+ */
+
+#if SOD__GCC_P(2, 5)
+# define SOD__NORETURN __attribute__((__noreturn__))
+#endif
+
+#ifndef SOD__NORETURN
+# define SOD__NORETURN
+#endif
+
/* --- @SOD__PARANOIA@ --- *
*
* Arguments: @cond@ = a condition to check
/* --- @SOD_DECL@ --- *
*
- * Arguments: @cls@ = a class type name
+ * Arguments: @cls_@ = a class type name
* @var@ = a variable name
* @keys@ = a @KWARGS(...)@ keyword argument sequence
*
* @cls@ with automatic lifetime.
*/
-#define SOD_DECL(cls, var, keys) \
- struct cls##__ilayout var##__layout; \
- cls *var = (cls *)sod_init(cls##__class, &var##__layout, keys)
+#define SOD_DECL(cls_, var, keys) \
+ struct cls_##__ilayout var##__layout; \
+ cls_ *var = \
+ SOD__PARANOIA(sizeof(var##__layout) == cls_##__class->cls.initsz, \
+ (cls_ *)sod_init(cls_##__class, &var##__layout, keys), \
+ (sod__chksz_fail(cls_##__class, sizeof(var##__layout)), \
+ (cls_ *)0))
/*----- Functions provided ------------------------------------------------*/
+/* --- @sod__chksz_fail@ --- *
+ *
+ * Arguments: @const SodClass *cls@ = class we were trying to instantiate
+ * @size_t sz@ = size allocated
+ *
+ * Returns: Doesn't.
+ *
+ * Use: Reports instantiation failure caused by a mismatch between
+ * the size allocated (@sz@) and the size required for an
+ * instance of class @cls@.
+ */
+
+extern SOD__NORETURN
+ void sod__chksz_fail(const SodClass */*cls*/, size_t /*sz*/);
+
/* --- @sod_subclassp@ --- *
*
* Arguments: @const SodClass *sub, *super@ = pointers to two classes