summaryrefslogtreecommitdiff
path: root/libguile/gh_test_repl.c
diff options
context:
space:
mode:
Diffstat (limited to 'libguile/gh_test_repl.c')
-rw-r--r--libguile/gh_test_repl.c171
1 files changed, 0 insertions, 171 deletions
diff --git a/libguile/gh_test_repl.c b/libguile/gh_test_repl.c
index 670d33511..e69de29bb 100644
--- a/libguile/gh_test_repl.c
+++ b/libguile/gh_test_repl.c
@@ -1,171 +0,0 @@
-/* Copyright (C) 1995,1996,1997 Free Software Foundation, Inc.
-
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this software; see the file COPYING. If not, write to
- * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
- * Boston, MA 02111-1307 USA
- *
- * As a special exception, the Free Software Foundation gives permission
- * for additional uses of the text contained in its release of GUILE.
- *
- * The exception is that, if you link the GUILE library with other files
- * to produce an executable, this does not by itself cause the
- * resulting executable to be covered by the GNU General Public License.
- * Your use of that executable is in no way restricted on account of
- * linking the GUILE library code into it.
- *
- * This exception does not however invalidate any other reasons why
- * the executable file might be covered by the GNU General Public License.
- *
- * This exception applies only to the code released by the
- * Free Software Foundation under the name GUILE. If you copy
- * code from other Free Software Foundation releases into a copy of
- * GUILE, as the General Public License permits, the exception does
- * not apply to the code that you add in this way. To avoid misleading
- * anyone as to the status of such modified files, you must delete
- * this exception notice from them.
- *
- * If you write modifications of your own for GUILE, it is your choice
- * whether to permit this exception to apply to your modifications.
- * If you do not wish that, delete this exception notice. */
-
-
-/* gh_test_repl -- a program that demonstrates starting Guile, adding
- some privmitive procedures and entering a REPL form C */
-
-#include <stdio.h>
-#include <math.h>
-
-#include "libguile/gh.h"
-
-SCM c_factorial (SCM s_n);
-SCM c_sin (SCM s_x);
-SCM c_vector_test (SCM s_length);
-
-/* the gh_enter() routine, the standard entryp point for the gh_
- interface, makes you use a separate main function */
-void
-main_prog (int argc, char *argv[])
-{
- SCM cf;
-
- gh_eval_str ("(display \"hello guile\n\")");
-
- gh_eval_str ("(define (square x) (* x x))");
- gh_eval_str ("(define (fact n) (if (= n 1) 1 (* n (fact (- n 1)))))");
-
- gh_eval_str ("(display (square 9)) (newline)");
- gh_eval_str ("(display (fact 100)) (newline)");
-
- gh_eval_str ("(define s \"A string\")");
- gh_eval_str ("(define p '(A . pair))");
- gh_eval_str ("(display s)");
- gh_eval_str ("(display p)");
- gh_eval_str ("(display (string? s))");
- gh_eval_str ("(display (pair? s))");
-
- /* now define some new primitives in C */
- cf = gh_new_procedure1_0 ("c-factorial", c_factorial);
- gh_new_procedure1_0 ("c-sin", c_sin);
- gh_new_procedure1_0 ("c-vector-test", c_vector_test);
-
- /* now try some (eval ...) action from C */
- {
- SCM l = SCM_EOL;
- l = gh_cons (gh_str02scm ("hello world"), l);
- l = gh_cons (gh_symbol2scm ("'display"), l);
- gh_display (l);
- }
-
- {
- SCM a_string;
- a_string = gh_str02scm ("A string");
-
- printf ("testing the predicates for pair? and string?\n");
- printf ("gh_pair_p(a_string) is %d, gh_string_p(a_string) is %d\n",
- gh_pair_p (a_string), gh_string_p (a_string));
- }
-
- printf ("testing the predicates for procedure? and vector?\n");
- printf ("gh_procedure_p(c_factorial) is %d, gh_vector_p(c_factorial) is %d\n",
- gh_procedure_p (cf), gh_vector_p (cf));
- gh_eval_str("(c-vector-test 200)");
-
- gh_repl (argc, argv);
-}
-
-int
-main (int argc, char *argv[])
-{
- gh_enter (argc, argv, main_prog);
- return 0;
-}
-
-SCM
-c_factorial (SCM s_n)
-{
- int i, n;
- unsigned long result = 1;
-
- n = gh_scm2ulong (s_n);
-
- for (i = 1; i <= n; ++i)
- {
- result = result * i;
- }
- return gh_ulong2scm (result);
-}
-
-/* a sin routine in C, callable from scheme. it is named c_sin() to
- distinguish it from the default scheme sin function */
-SCM
-c_sin (SCM s_x)
-{
- double x = gh_scm2double (s_x);
-
- return gh_double2scm (sin (x));
-}
-
-/* play around with vectors in guile: this routine creates a vector of
- the given length, initializes it all to zero except element 2 which
- is set to 1.9. */
-SCM
-c_vector_test (SCM s_length)
-{
- SCM xvec;
- unsigned long c_length;
-
- c_length = gh_scm2ulong (s_length);
- printf ("VECTOR test -- requested length for vector: %ld", c_length);
-
- /* create a vector filled witth 0.0 entries */
- xvec = gh_make_vector (s_length, gh_double2scm (0.0));
- /* set the second element in it to some floating point value */
- gh_vector_set_x (xvec, gh_int2scm(2), gh_double2scm (1.9));
-
- /* I think I can use == because Scheme's doubles should be the same
- as C doubles, with no operations in between */
- if (gh_scm2double(gh_vector_ref (xvec, gh_int2scm(2))) == 1.9) {
- printf("... PASS\n");
- } else {
- printf("... FAIL\n");
- }
-
- return xvec;
-}
-
-/*
- Local Variables:
- c-file-style: "gnu"
- End:
-*/