From: Tim Vaughan <tgvaughan@gmail.com>
Date: Mon, 2 May 2016 11:53:19 +0000 (+1200)
Subject: Implemented FILL and ERASE.
X-Git-Url: https://thelambdalab.xyz/gitweb/index.cgi?a=commitdiff_plain;h=b27edfb401b367f76756f26be6f139f59c058a83;p=forth.jl.git

Implemented FILL and ERASE.
---

diff --git a/src/lib.4th b/src/lib.4th
index 38a8d14..ad6a3a5 100644
--- a/src/lib.4th
+++ b/src/lib.4th
@@ -523,6 +523,17 @@
         THEN
 ;
 
+( Fill u ints, starting at a, with the value b )
+: FILL          ( a u b -- )
+        -ROT OVER + SWAP ?DO
+                DUP I !
+        LOOP
+        DROP
+;
+
+: ERASE         ( a u -- )
+        0 FILL
+;
 
 ( PRINTING THE DICTIONARY ------------------------------------------------------ )