nzerop: new function.

* arith.c (nzerop): New function.

* eval.c (eval_init): Register nzerop intrinsic.

* lib.h (nzerop): Declared.

* txr.1: Documented.

1 files changed, 1 insertions, 0 deletions

diff --git a/eval.c b/eval.c
index b26dc5b1..9cfeba03 100644
--- a/eval.c
+++ b/eval.c
@@ -6445,6 +6445,7 @@ void eval_init(void)
   reg_fun(intern(lit("numberp"), user_package), func_n1(numberp));
 
   reg_fun(intern(lit("zerop"), user_package), func_n1(zerop));
+  reg_fun(intern(lit("nzerop"), user_package), func_n1(nzerop));
   reg_fun(intern(lit("plusp"), user_package), func_n1(plusp));
   reg_fun(intern(lit("minusp"), user_package), func_n1(minusp));
   reg_fun(intern(lit("evenp"), user_package), func_n1(evenp));