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-rw-r--r--libguile/generalized-vectors.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/libguile/generalized-vectors.c b/libguile/generalized-vectors.c
index 0c85f368a..2d437a475 100644
--- a/libguile/generalized-vectors.c
+++ b/libguile/generalized-vectors.c
@@ -31,6 +31,43 @@
#include "libguile/generalized-vectors.h"
+struct scm_t_vector_ctor
+{
+ SCM tag;
+ SCM (*ctor)(SCM, SCM);
+};
+
+#define VECTOR_CTORS_N_STATIC_ALLOC 20
+static struct scm_t_vector_ctor vector_ctors[VECTOR_CTORS_N_STATIC_ALLOC];
+static int num_vector_ctors_registered = 0;
+
+void
+scm_i_register_vector_constructor (SCM type, SCM (*ctor)(SCM, SCM))
+{
+ if (num_vector_ctors_registered >= VECTOR_CTORS_N_STATIC_ALLOC)
+ /* need to increase VECTOR_CTORS_N_STATIC_ALLOC, buster */
+ abort ();
+ else
+ {
+ vector_ctors[num_vector_ctors_registered].tag = type;
+ vector_ctors[num_vector_ctors_registered].ctor = ctor;
+ num_vector_ctors_registered++;
+ }
+}
+
+SCM_DEFINE (scm_make_generalized_vector, "make-generalized-vector", 2, 1, 0,
+ (SCM type, SCM len, SCM fill),
+ "Make a generalized vector")
+#define FUNC_NAME s_scm_make_generalized_vector
+{
+ int i;
+ for (i = 0; i < num_vector_ctors_registered; i++)
+ if (vector_ctors[i].tag == type)
+ return vector_ctors[i].ctor(len, fill);
+ scm_wrong_type_arg_msg (FUNC_NAME, SCM_ARG1, type, "array type");
+}
+#undef FUNC_NAME
+
int
scm_is_generalized_vector (SCM obj)
{