Fix sqrt confusion. There must be a separate isqrt

for the integer square root.

* arith.c (sqroot_fixnum): Renamed back to isqrt_fixnum.
(sqroot): Rewritten to handle only floating-point square root.
(isqrt): New function, based on previous sqroot,
handles only integers.

* eval.c (eval_init): New intrinsic, isqrt.

* lib.h (isqrt): New declaration.

* txr.1: Doc stubs.

* txr.vim: Highlighting for isqrt.

1 files changed, 1 insertions, 0 deletions

diff --git a/lib.h b/lib.h
index e4dbfb8d..9876d77f 100644
--- a/lib.h
+++ b/lib.h
@@ -425,6 +425,7 @@ val expt(val base, val exp);
 val exptv(val nlist);
 val exptmod(val base, val exp, val mod);
 val sqroot(val anum);
+val isqrt(val anum);
 val gcd(val anum, val bnum);
 val floorf(val);
 val ceili(val);