1 files changed, 5 insertions, 0 deletions
diff --git a/include/u.h b/include/u.h
index fe251ac..01741f8 100644
--- a/include/u.h
+++ b/include/u.h
@@ -61,6 +61,7 @@ typedef __builtin_va_list va_list;
 #define true  1
 #define false 0
 #define nil ((void*)0)
+#define EOF   (-1)
 
 /* limits */
 #define CHAR_BIT 8
@@ -105,6 +106,10 @@ typedef __builtin_va_list va_list;
 
 #define PATH_MAX   4096
 
+#define NAN        (0.0f/0.0f)
+#define INFINITY   1e5000f
+#define HUGE_VAL   ((double)INFINITY)
+
 // ------------------------------------------------------------------
 // global macros