From d91ed5da5a5ea74308ad78faec31e03c48b7e767 Mon Sep 17 00:00:00 2001
From: Kaz Kylheku <kaz@kylheku.com>
Date: Mon, 12 Jan 2015 22:49:37 -0800
Subject: * arith.c (zerop): Handle character arguments. (plusp, minusp): New
 functions.

* eval.c (eval_init): Register plusp and minusp.

* lib.h (plusp, minusp): Declared.

* txr.1: Documented plusp and minusp, and the
handling of characters by zerop.
---
 lib.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'lib.h')

diff --git a/lib.h b/lib.h
index e55a3516..378973e6 100644
--- a/lib.h
+++ b/lib.h
@@ -545,6 +545,8 @@ val wrap_star(val start, val end, val num);
 val wrap(val start, val end, val num);
 val divi(val anum, val bnum);
 val zerop(val num);
+val plusp(val num);
+val minusp(val num);
 val evenp(val num);
 val oddp(val num);
 val succ(val num);
-- 
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