Adding nthcdr as accessor.

* eval.c (eval_init): Register nthcdr function.

* lib.c (nthcdr): New function.

* lib.h (nthcdr): Declared.

* share/txr/stdlib/place.tl (nthcdr): New defplace.

* txr.1: Documented.

1 files changed, 1 insertions, 0 deletions

diff --git a/eval.c b/eval.c
index 67ac400d..6450501f 100644
--- a/eval.c
+++ b/eval.c
@@ -4164,6 +4164,7 @@ void eval_init(void)
   reg_fun(intern(lit("reverse"), user_package), func_n1(reverse));
   reg_fun(intern(lit("ldiff"), user_package), func_n2(ldiff));
   reg_fun(intern(lit("last"), user_package), func_n1(last));
+  reg_fun(intern(lit("nthcdr"), user_package), func_n2(nthcdr));
   reg_fun(intern(lit("flatten"), user_package), func_n1(flatten));
   reg_fun(intern(lit("flatten*"), user_package), func_n1(lazy_flatten));
   reg_fun(intern(lit("tuples"), user_package), func_n3o(tuples, 2));