floor and ceil do division, with optional second arg.

Also, with one argument, these functions handle
ranges.

* arith.c (floordiv, ceildiv): New functions.
(floorf, ceili): Handle ranges.

* eval.c (eval_init): Register floor and ceil
to new functions.

* lib.h (floordiv, ceildiv): Declared.

* txr.1: Documentation updated.

1 files changed, 2 insertions, 0 deletions

diff --git a/lib.h b/lib.h
index 2e374e7c..6162c84f 100644
--- a/lib.h
+++ b/lib.h
@@ -679,7 +679,9 @@ val gcdv(struct args *nlist);
 val lcm(val anum, val bnum);
 val lcmv(struct args *nlist);
 val floorf(val);
+val floordiv(val, val);
 val ceili(val);
+val ceildiv(val anum, val bnum);
 val sine(val);
 val cosi(val);
 val tang(val);