New internal function: vec.

* lib.c (vec): New function.

* lib.h (vec): Declared.

2 files changed, 23 insertions, 0 deletions

diff --git a/lib.c b/lib.c
index 98e80315..22135f89 100644
--- a/lib.c
+++ b/lib.c
@@ -6668,6 +6668,28 @@ val vectorv(struct args *args)
   return vec;
 }
 
+val vec(val first, ...)
+{
+  va_list vl;
+  val vec = vector(zero, nil);
+  val next;
+  int count;
+
+  va_start (vl, first);
+
+  for (next = first, count = 0;
+       next != nao && count < 32;
+       next = va_arg(vl, val), count++)
+  {
+    vec_push(vec, next);
+  }
+
+  if (count == 32 && next != nao)
+    internal_error("runaway arguments in vec function");
+
+  return vec;
+}
+
 val vec_list(val list)
 {
   val vec = vector(zero, nil);
diff --git a/lib.h b/lib.h
index 5f44eb41..2e374e7c 100644
--- a/lib.h
+++ b/lib.h
@@ -893,6 +893,7 @@ val vec_push(val vec, val item);
 val length_vec(val vec);
 val size_vec(val vec);
 val vectorv(struct args *);
+val vec(val first, ...);
 val vec_list(val list);
 val list_vec(val vector);
 val copy_vec(val vec);