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author | Jim Blandy <jimb@red-bean.com> | 1997-04-14 06:42:27 +0000 |
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committer | Jim Blandy <jimb@red-bean.com> | 1997-04-14 06:42:27 +0000 |
commit | ee2a8b9bdd1d548e5530f4f132aa436167154a00 (patch) | |
tree | 752b54578b9f14e466cc3e8c712e47b4bf4a9c78 /libguile/gh_test_repl.c | |
parent | f4d7dfb69da543557bfca4b63e992868e0e37110 (diff) | |
download | guile-ee2a8b9bdd1d548e5530f4f132aa436167154a00.tar.gz |
* gh_init.c (gh_standard_handler): Return SCM_BOOL_F, not garbage.
Merge GH interface library into libguile.
* gh.h, gh_data.c, gh_eval.c, gh_funcs.c, gh_init.c, gh_io.c,
gh_list.c, gh_predicates.c, gh_test_c, gh_test_c.c, gh_test_repl,
gh_test_repl.c: New files.
* Makefile.am (libguile_la_SOURCES): Add gh_data.c, gh_eval.c,
gh_funcs.c, gh_init.c, gh_io.c, gh_list.c, gh_predicates.c. Move
_scm.h to ...
(EXTRA_libguile_la_SOURCES): ... here.
(pkginclude_HEADERS): Add variable, to get gh.h installed.
(THREAD_LIBS, check_ldadd, check_PROGRAMS, gh_test_c_SOURCES,
gh_test_c_LDADD, gh_test_repl_SOURCES, gh_test_repl_LDADD):
New variables, describing how to build the gh test programs.
* configure.in: Check for -lm, -lsocket, -lnsl; we need this to
build the test programs, and we probably should have been linking
libguile.la against them all along, to support AIX shared libs.
Add cflags for threads to CFLAGS; add libs for threads to new
variable THREAD_LIBS, used in Makefile.am.
* ChangeLog-gh: log from old `gh' subdirectory.
* Makefile.in, configure, scmconfig.h.in: Rebuilt.
Diffstat (limited to 'libguile/gh_test_repl.c')
-rw-r--r-- | libguile/gh_test_repl.c | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/libguile/gh_test_repl.c b/libguile/gh_test_repl.c new file mode 100644 index 000000000..5ef7a44b7 --- /dev/null +++ b/libguile/gh_test_repl.c @@ -0,0 +1,156 @@ +/* Copyright (C) 1995,1996 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, 675 Mass Ave, Cambridge, MA 02139, 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 <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_repl (); +} + +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 ("requested length for vector: %ld\n", c_length); + + /* create a vector filled witth 0.0 entries */ + xvec = gh_vector (c_length, gh_double2scm (0.0)); + /* set the second element in it to some floating point value */ + gh_vset (xvec, 2, gh_double2scm (1.9)); + + return xvec; +} |