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f2c9fcb0 | 1 | /* Copyright (C) 1995,1996,1997,1998, 2000 Free Software Foundation, Inc. |
ee2a8b9b JB |
2 | |
3 | * This program is free software; you can redistribute it and/or modify | |
4 | * it under the terms of the GNU General Public License as published by | |
5 | * the Free Software Foundation; either version 2, or (at your option) | |
6 | * any later version. | |
7 | * | |
8 | * This program 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 | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this software; see the file COPYING. If not, write to | |
82892bed JB |
15 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
16 | * Boston, MA 02111-1307 USA | |
ee2a8b9b JB |
17 | * |
18 | * As a special exception, the Free Software Foundation gives permission | |
19 | * for additional uses of the text contained in its release of GUILE. | |
20 | * | |
21 | * The exception is that, if you link the GUILE library with other files | |
22 | * to produce an executable, this does not by itself cause the | |
23 | * resulting executable to be covered by the GNU General Public License. | |
24 | * Your use of that executable is in no way restricted on account of | |
25 | * linking the GUILE library code into it. | |
26 | * | |
27 | * This exception does not however invalidate any other reasons why | |
28 | * the executable file might be covered by the GNU General Public License. | |
29 | * | |
30 | * This exception applies only to the code released by the | |
31 | * Free Software Foundation under the name GUILE. If you copy | |
32 | * code from other Free Software Foundation releases into a copy of | |
33 | * GUILE, as the General Public License permits, the exception does | |
34 | * not apply to the code that you add in this way. To avoid misleading | |
35 | * anyone as to the status of such modified files, you must delete | |
36 | * this exception notice from them. | |
37 | * | |
38 | * If you write modifications of your own for GUILE, it is your choice | |
39 | * whether to permit this exception to apply to your modifications. | |
82892bed | 40 | * If you do not wish that, delete this exception notice. */ |
ee2a8b9b JB |
41 | \f |
42 | ||
43 | \f | |
44 | /* Defining Scheme functions implemented by C functions --- subrs. */ | |
45 | ||
a0599745 | 46 | #include "libguile/gh.h" |
ee2a8b9b JB |
47 | |
48 | /* allows you to define new scheme primitives written in C */ | |
49 | SCM | |
bcee10dd | 50 | gh_new_procedure (const char *proc_name, SCM (*fn) (), |
ee2a8b9b JB |
51 | int n_required_args, int n_optional_args, int varp) |
52 | { | |
53 | return scm_make_gsubr (proc_name, n_required_args, n_optional_args, | |
54 | varp, fn); | |
55 | } | |
56 | ||
57 | SCM | |
bcee10dd | 58 | gh_new_procedure0_0 (const char *proc_name, SCM (*fn) ()) |
ee2a8b9b JB |
59 | { |
60 | return gh_new_procedure (proc_name, fn, 0, 0, 0); | |
61 | } | |
62 | ||
63 | SCM | |
bcee10dd | 64 | gh_new_procedure0_1 (const char *proc_name, SCM (*fn) ()) |
ee2a8b9b JB |
65 | { |
66 | return gh_new_procedure (proc_name, fn, 0, 1, 0); | |
67 | } | |
68 | ||
69 | SCM | |
bcee10dd | 70 | gh_new_procedure0_2 (const char *proc_name, SCM (*fn) ()) |
ee2a8b9b JB |
71 | { |
72 | return gh_new_procedure (proc_name, fn, 0, 2, 0); | |
73 | } | |
74 | ||
75 | SCM | |
bcee10dd | 76 | gh_new_procedure1_0 (const char *proc_name, SCM (*fn) ()) |
ee2a8b9b JB |
77 | { |
78 | return gh_new_procedure (proc_name, fn, 1, 0, 0); | |
79 | } | |
80 | ||
81 | SCM | |
bcee10dd | 82 | gh_new_procedure1_1 (const char *proc_name, SCM (*fn) ()) |
ee2a8b9b JB |
83 | { |
84 | return gh_new_procedure (proc_name, fn, 1, 1, 0); | |
85 | } | |
86 | ||
87 | SCM | |
bcee10dd | 88 | gh_new_procedure1_2 (const char *proc_name, SCM (*fn) ()) |
ee2a8b9b JB |
89 | { |
90 | return gh_new_procedure (proc_name, fn, 1, 2, 0); | |
91 | } | |
92 | ||
93 | SCM | |
bcee10dd | 94 | gh_new_procedure2_0 (const char *proc_name, SCM (*fn) ()) |
ee2a8b9b JB |
95 | { |
96 | return gh_new_procedure (proc_name, fn, 2, 0, 0); | |
97 | } | |
98 | ||
99 | SCM | |
bcee10dd | 100 | gh_new_procedure2_1 (const char *proc_name, SCM (*fn) ()) |
ee2a8b9b JB |
101 | { |
102 | return gh_new_procedure (proc_name, fn, 2, 1, 0); | |
103 | } | |
104 | ||
105 | SCM | |
bcee10dd | 106 | gh_new_procedure2_2 (const char *proc_name, SCM (*fn) ()) |
ee2a8b9b JB |
107 | { |
108 | return gh_new_procedure (proc_name, fn, 2, 2, 0); | |
109 | } | |
110 | ||
111 | SCM | |
bcee10dd | 112 | gh_new_procedure3_0 (const char *proc_name, SCM (*fn) ()) |
ee2a8b9b JB |
113 | { |
114 | return gh_new_procedure (proc_name, fn, 3, 0, 0); | |
115 | } | |
116 | ||
117 | SCM | |
bcee10dd | 118 | gh_new_procedure4_0 (const char *proc_name, SCM (*fn) ()) |
ee2a8b9b JB |
119 | { |
120 | return gh_new_procedure (proc_name, fn, 4, 0, 0); | |
121 | } | |
122 | ||
123 | SCM | |
bcee10dd | 124 | gh_new_procedure5_0 (const char *proc_name, SCM (*fn) ()) |
ee2a8b9b JB |
125 | { |
126 | return gh_new_procedure (proc_name, fn, 5, 0, 0); | |
127 | } | |
128 | ||
129 | /* some (possibly most) Scheme functions available from C */ | |
130 | SCM | |
bcee10dd | 131 | gh_define (const char *name, SCM val) |
ee2a8b9b | 132 | { |
86d31dfe MV |
133 | scm_c_define (name, val); |
134 | return SCM_UNSPECIFIED; | |
ee2a8b9b JB |
135 | } |
136 | ||
137 | \f | |
138 | /* Calling Scheme functions from C. */ | |
139 | ||
140 | SCM | |
141 | gh_apply (SCM proc, SCM args) | |
142 | { | |
143 | return scm_apply (proc, args, SCM_EOL); | |
144 | } | |
145 | ||
146 | SCM | |
147 | gh_call0 (SCM proc) | |
148 | { | |
149 | return scm_apply (proc, SCM_EOL, SCM_EOL); | |
150 | } | |
151 | ||
152 | SCM | |
153 | gh_call1 (SCM proc, SCM arg) | |
154 | { | |
155 | return scm_apply (proc, arg, scm_listofnull); | |
156 | } | |
157 | ||
158 | SCM | |
159 | gh_call2 (SCM proc, SCM arg1, SCM arg2) | |
160 | { | |
161 | return scm_apply (proc, arg1, scm_cons (arg2, scm_listofnull)); | |
162 | } | |
163 | ||
164 | SCM | |
165 | gh_call3 (SCM proc, SCM arg1, SCM arg2, SCM arg3) | |
166 | { | |
167 | return scm_apply (proc, arg1, scm_cons2 (arg2, arg3, scm_listofnull)); | |
168 | } | |
89e00824 ML |
169 | |
170 | /* | |
171 | Local Variables: | |
172 | c-file-style: "gnu" | |
173 | End: | |
174 | */ |