Initial revision

kernel/assert.h

@@ -0,0 +1,25 @@
+/*	assert.h	*/
+
+#ifndef NDEBUG	/* 8086 must do without training wheels. */
+#define NDEBUG	(_WORD_SIZE == 2)
+#endif
+
+#if !NDEBUG
+
+#define INIT_ASSERT	static char *assert_file= __FILE__;
+
+void bad_assertion(char *file, int line, char *what);
+void bad_compare(char *file, int line, int lhs, char *what, int rhs);
+
+#define assert(x)	(!(x) ? bad_assertion(assert_file, __LINE__, #x) \
+								: (void) 0)
+#define compare(a,t,b)	(!((a) t (b)) ? bad_compare(assert_file, __LINE__, \
+				(a), #a " " #t " " #b, (b)) : (void) 0)
+#else /* NDEBUG */
+
+#define INIT_ASSERT	/* nothing */
+
+#define assert(x)	(void)0
+#define compare(a,t,b)	(void)0
+
+#endif /* NDEBUG */