rot, nrot: new functions.

* eval.c (eval_init): nrot, rot intrinsics registered.

* lib.c (nrot, rot): New functions.

* lib.h (nrot, rot): Declared.

* tests/012/seq.tl: New test cases.

* txr.1: Documented.

* stdlib/doc-syms.tl: Updated.

1 files changed, 2 insertions, 0 deletions

diff --git a/eval.c b/eval.c
index 6d2fd11c..4e640923 100644
--- a/eval.c
+++ b/eval.c
@@ -7019,6 +7019,8 @@ void eval_init(void)
   reg_fun(intern(lit("unique"), user_package), func_n2ov(unique, 1));
   reg_fun(intern(lit("uniq"), user_package), func_n1(uniq));
   reg_fun(intern(lit("grade"), user_package), func_n3o(grade, 1));
+  reg_fun(intern(lit("nrot"), user_package), func_n2o(nrot, 1));
+  reg_fun(intern(lit("rot"), user_package), func_n2o(rot, 1));
 
   reg_var(intern(lit("*param-macro*"), user_package), pm_table);