add (if cond if-true if-false) builtin

1 files changed, 3 insertions, 1 deletions

diff --git a/val.h b/val.h
index db0a789..aa20b48 100644
--- a/val.h
+++ b/val.h
@@ -30,6 +30,8 @@ void print_val(Val v);
 void println_val(Val v);
 const char *typename_str(Val v);
 
+bool is_truthy(Val v);
+
 
 typedef enum {
 	OTY_STRING,
@@ -55,7 +57,7 @@ ObjString *objstring_copy_cstr(State *s, char *str);
 ObjString *objstring_take(State *S, char *src, size_t len);
 
 
-#define IS_NIL(x) (x.ty == NIL)
+#define IS_NIL(x) (x.ty == TY_NIL)
 #define IS_NUM(x) (x.ty == TY_NUM)
 #define IS_BOOL(x) (x.ty == TY_BOOL)
 #define IS_OBJ(x) (x.ty == TY_OBJ)