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-rw-r--r--libguile/generalized-vectors.c74
1 files changed, 74 insertions, 0 deletions
diff --git a/libguile/generalized-vectors.c b/libguile/generalized-vectors.c
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+++ b/libguile/generalized-vectors.c
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+/* Copyright 1995-1998,2000-2006,2009-2014,2018
+ Free Software Foundation, Inc.
+
+ This file is part of Guile.
+
+ Guile is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ Guile is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+ License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with Guile. If not, see
+ <https://www.gnu.org/licenses/>. */
+
+
+
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "error.h"
+#include "gsubr.h"
+
+#include "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 (scm_is_eq (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
+
+void
+scm_init_generalized_vectors ()
+{
+#include "generalized-vectors.x"
+}