add eq?, make make_nil() function singleton

1 files changed, 1 insertions, 0 deletions

diff --git a/main.c b/main.c
index 2b0c00f..4f00b5d 100644
--- a/main.c
+++ b/main.c
@@ -32,6 +32,7 @@ int main(int argc, char **argv) {
 	env_define(global_env, "car", make_builtin(builtin_car));
 	env_define(global_env, "cdr", make_builtin(builtin_cdr));
 	env_define(global_env, "null?", make_builtin(builtin_isnull));
+	env_define(global_env, "eq?", make_builtin(builtin_eq));
 	env_define(global_env, "+", make_builtin(builtin_add));
 	env_define(global_env, "-", make_builtin(builtin_sub));
 	env_define(global_env, "*", make_builtin(builtin_mul));