mirror/guile
mirror/guile
1
Fork 0
mirror of https://git.savannah.gnu.org/git/guile.git synced 2025-06-14 07:30:32 +02:00
Code Activity

maintainer changed: was lord, now jimb; first import

Browse source
This commit is contained in:
Jim Blandy 1996-07-25 22:56:11 +00:00
commit 0f2d19dd46
155 changed files with 53863 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

205
libguile/error.c Normal file
View file

@ -0,0 +1,205 @@
/* 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.
*/
#include <stdio.h>
#include "_scm.h"
/* {Errors and Exceptional Conditions}
*/
SCM system_error_sym;
/* True between SCM_DEFER_INTS and SCM_ALLOW_INTS, and
* when the interpreter is not running at all.
*/
int scm_ints_disabled = 1;
extern int errno;
#ifdef __STDC__
static void
err_head (char *str)
#else
static void
err_head (str)
char *str;
#endif
{
int oerrno = errno;
if (SCM_NIMP (scm_cur_outp))
scm_fflush (scm_cur_outp);
scm_gen_putc ('\n', scm_cur_errp);
#if 0
if (SCM_BOOL_F != *scm_loc_loadpath)
{
scm_iprin1 (*scm_loc_loadpath, scm_cur_errp, 1);
scm_gen_puts (scm_regular_string, ", line ", scm_cur_errp);
scm_intprint ((long) scm_linum, 10, scm_cur_errp);
scm_gen_puts (scm_regular_string, ": ", scm_cur_errp);
}
#endif
scm_fflush (scm_cur_errp);
errno = oerrno;
if (scm_cur_errp == scm_def_errp)
{
if (errno > 0)
perror (str);
fflush (stderr);
return;
}
}
SCM_PROC(s_errno, "errno", 0, 1, 0, scm_errno);
#ifdef __STDC__
SCM
scm_errno (SCM arg)
#else
SCM
scm_errno (arg)
SCM arg;
#endif
{
int old = errno;
if (!SCM_UNBNDP (arg))
{
if (SCM_FALSEP (arg))
errno = 0;
else
errno = SCM_INUM (arg);
}
return SCM_MAKINUM (old);
}
SCM_PROC(s_perror, "perror", 1, 0, 0, scm_perror);
#ifdef __STDC__
SCM
scm_perror (SCM arg)
#else
SCM
scm_perror (arg)
SCM arg;
#endif
{
SCM_ASSERT (SCM_NIMP (arg) && SCM_STRINGP (arg), arg, SCM_ARG1, s_perror);
err_head (SCM_CHARS (arg));
return SCM_UNSPECIFIED;
}
#ifdef __STDC__
void
scm_everr (SCM exp, SCM env, SCM arg, char *pos, char *s_subr)
#else
void
scm_everr (exp, env, arg, pos, s_subr)
SCM exp;
SCM env;
SCM arg;
char *pos;
char *s_subr;
#endif
{
SCM desc;
SCM args;
if ((~0x1fL) & (long) pos)
desc = scm_makfrom0str (pos);
else
desc = SCM_MAKINUM ((long)pos);
{
SCM sym;
if (!s_subr || !*s_subr)
sym = SCM_BOOL_F;
else
sym = SCM_CAR (scm_intern0 (s_subr));
args = scm_listify (desc, sym, arg, SCM_UNDEFINED);
}
/* (throw (quote %%system-error) <desc> <proc-name> arg)
*
* <desc> is a string or an integer (see %%system-errors).
* <proc-name> is a symbol or #f in some annoying cases (e.g. cddr).
*/
scm_ithrow (system_error_sym, args, 1);
/* No return, but just in case: */
write (2, "unhandled system error", sizeof ("unhandled system error"));
exit (1);
}
#ifdef __STDC__
SCM
scm_wta (SCM arg, char *pos, char *s_subr)
#else
SCM
scm_wta (arg, pos, s_subr)
SCM arg;
char *pos;
char *s_subr;
#endif
{
scm_everr (SCM_UNDEFINED, SCM_EOL, arg, pos, s_subr);
return SCM_UNSPECIFIED;
}
#ifdef __STDC__
void
scm_init_error (void)
#else
void
scm_init_error ()
#endif
{
system_error_sym = SCM_CAR (scm_intern0 ("%%system-error"));
scm_permanent_object (system_error_sym);
#include "error.x"
}