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-rw-r--r--builtin.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/builtin.cpp b/builtin.cpp
index b1d2a93..e5eb988 100644
--- a/builtin.cpp
+++ b/builtin.cpp
@@ -727,6 +727,7 @@ BUILTIN_PROC_DEF(make_list) {
}
BUILTIN_PROC_DEF(num_add) {
+ ARGS_AT_LEAST_ONE;
NumObj *res = new IntNumObj(0), *opr; // the most accurate type
EvalObj *nptr;
Cons *ptr;
@@ -782,6 +783,7 @@ BUILTIN_PROC_DEF(num_sub) {
}
BUILTIN_PROC_DEF(num_multi) {
+ ARGS_AT_LEAST_ONE;
NumObj *res = new IntNumObj(1), *opr; // the most accurate type
EvalObj *nptr;
Cons *ptr;