1 files changed, 28 insertions, 0 deletions
diff --git a/usr/include/assert.h b/usr/include/assert.h
new file mode 100644
index 0000000..9091733
--- /dev/null
+++ b/usr/include/assert.h
@@ -0,0 +1,28 @@
+/*
+ * assert.h
+ */
+
+#ifndef _ASSERT_H
+#define _ASSERT_H
+
+#include <klibc/compiler.h>
+
+#ifdef NDEBUG
+
+/*
+ * NDEBUG doesn't just suppress the faulting behavior of assert(),
+ * but also all side effects of the assert() argument.  This behavior
+ * is required by the C standard, and allows the argument to reference
+ * variables that are not defined without NDEBUG.
+ */
+#define assert(x) ((void)(0))
+
+#else
+
+extern __noreturn __assert_fail(const char *, const char *, unsigned int);
+
+#define assert(x) ((x) ? (void)0 : __assert_fail(#x, __FILE__, __LINE__))
+
+#endif
+
+#endif				/* _ASSERT_H */