1 /* Copyright (C) 2000, 2001, 2006 Free Software Foundation, Inc.
3 * This library is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU Lesser General Public
5 * License as published by the Free Software Foundation; either
6 * version 2.1 of the License, or (at your option) any later version.
8 * This library is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * Lesser General Public License for more details.
13 * You should have received a copy of the GNU Lesser General Public
14 * License along with this library; if not, write to the Free Software
15 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 #include "libguile/_scm.h"
19 #include "libguile/eval.h"
20 #include "libguile/feature.h"
21 #include "libguile/gc.h"
22 #include "libguile/numbers.h"
23 #include "libguile/ports.h"
24 #include "libguile/root.h"
25 #include "libguile/strings.h"
26 #include "libguile/struct.h"
27 #include "libguile/validate.h"
29 #include "libguile/values.h"
31 SCM scm_values_vtable
;
34 print_values (SCM obj
, SCM pwps
)
36 SCM values
= scm_struct_ref (obj
, SCM_INUM0
);
37 SCM port
= SCM_PORT_WITH_PS_PORT (pwps
);
38 scm_print_state
*ps
= SCM_PRINT_STATE (SCM_PORT_WITH_PS_PS (pwps
));
40 scm_puts ("#<values ", port
);
41 scm_iprin1 (values
, port
, ps
);
44 return SCM_UNSPECIFIED
;
47 SCM_DEFINE (scm_values
, "values", 0, 0, 1,
49 "Delivers all of its arguments to its continuation. Except for\n"
50 "continuations created by the @code{call-with-values} procedure,\n"
51 "all continuations take exactly one value. The effect of\n"
52 "passing no value or more than one value to continuations that\n"
53 "were not created by @code{call-with-values} is unspecified.")
54 #define FUNC_NAME s_scm_values
59 SCM_VALIDATE_LIST_COPYLEN (1, args
, n
);
61 result
= SCM_CAR (args
);
64 result
= scm_make_struct (scm_values_vtable
, SCM_INUM0
,
73 scm_init_values (void)
75 SCM print
= scm_c_define_subr ("%print-values", scm_tc7_subr_2
,
79 = scm_permanent_object (
80 scm_make_vtable_vtable (scm_from_locale_string ("pr"),
83 SCM_SET_STRUCT_PRINTER (scm_values_vtable
, print
);
85 scm_add_feature ("values");
87 #include "libguile/values.x"