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53befeb700
(Not quite finished, the following will be done tomorrow. module/srfi/*.scm module/rnrs/*.scm module/scripts/*.scm testsuite/*.scm guile-readline/* )
648 lines
21 KiB
C
648 lines
21 KiB
C
/* classes: h_files */
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#ifndef SCM___SCM_H
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#define SCM___SCM_H
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/* Copyright (C) 1995,1996,1998,1999,2000,2001,2002,2003, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 3 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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/**********************************************************************
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This file is Guile's central public header.
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When included by other files, this file should preceed any include
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other than __scm.h.
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Under *NO* circumstances should new items be added to the global
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namespace (via adding #define, typedef, or similar to this file) with
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generic names. This usually means that any new names should be
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prefixed by either SCM_ or GUILE_. i.e. do *not* #define HAVE_FOO or
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SIZEOF_BAR. See configure.in, gen-scmconfig.h.in, and
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gen-scmconfig.c for examples of how to properly handle this issue.
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The main documentation is in gen-scmconfig.c.
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"What's the difference between _scm.h and __scm.h?"
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_scm.h is not installed; it's only visible to the libguile sources
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themselves, and it includes config.h, the private config header.
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__scm.h is installed, and is #included by <libguile.h>. If both
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the client and libguile need some piece of information, and it
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doesn't fit well into the header file for any particular module, it
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should go in __scm.h. __scm.h includes scmconfig.h, the public
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config header.
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**********************************************************************/
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/* What did the configure script discover about the outside world? */
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#include "libguile/scmconfig.h"
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/* {Compiler hints}
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*
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* The following macros are used to provide additional information for the
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* compiler, which may help to do better error checking and code
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* optimization. A second benefit of these macros is, that they also provide
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* additional information to the developers.
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*/
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/* The macro SCM_NORETURN indicates that a function will never return.
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* Examples:
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* 1) int foo (char arg) SCM_NORETURN;
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*/
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#ifdef __GNUC__
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#define SCM_NORETURN __attribute__ ((noreturn))
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#else
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#define SCM_NORETURN
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#endif
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/* The macro SCM_UNUSED indicates that a function, function argument or
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* variable may potentially be unused.
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* Examples:
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* 1) static int unused_function (char arg) SCM_UNUSED;
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* 2) int foo (char unused_argument SCM_UNUSED);
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* 3) int unused_variable SCM_UNUSED;
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*/
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#ifdef __GNUC__
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#define SCM_UNUSED __attribute__ ((unused))
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#else
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#define SCM_UNUSED
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#endif
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/* The SCM_EXPECT macros provide branch prediction hints to the compiler. To
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* use only in places where the result of the expression under "normal"
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* circumstances is known. */
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#if defined(__GNUC__) && (__GNUC__ >= 3)
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# define SCM_EXPECT __builtin_expect
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#else
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# define SCM_EXPECT(_expr, _value) (_expr)
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#endif
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#define SCM_LIKELY(_expr) SCM_EXPECT ((_expr), 1)
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#define SCM_UNLIKELY(_expr) SCM_EXPECT ((_expr), 0)
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/* The SCM_INTERNAL macro makes it possible to explicitly declare a function
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* as having "internal" linkage. However our current tack on this problem is
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* to use GCC 4's -fvisibility=hidden, making functions internal by default,
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* and then SCM_API marks them for export. */
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#define SCM_INTERNAL extern
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/* {Supported Options}
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*
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* These may be defined or undefined.
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*/
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/* #define GUILE_DEBUG_FREELIST */
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/* All the number support there is.
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*/
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#define BIGNUMS
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/* GC should relinquish empty cons-pair arenas. */
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/* cmm:FIXME look at this after done mangling the GC */
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/* #define GC_FREE_SEGMENTS */
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/* Provide a scheme-accessible count-down timer that
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* generates a pseudo-interrupt.
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*/
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#define TICKS
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/* Use engineering notation when converting numbers strings?
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*/
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#undef ENGNOT
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/* {Unsupported Options}
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*
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* These must be defined as given here.
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*/
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/* Guile Scheme supports the #f/() distinction; Guile Lisp won't. We
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have horrible plans for their unification. */
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#undef SICP
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/* Random options (not yet supported or in final form). */
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#define STACK_CHECKING
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#undef NO_CEVAL_STACK_CHECKING
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/* SCM_API is a macro prepended to all function and data definitions
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which should be exported from libguile. */
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#if BUILDING_LIBGUILE && HAVE_VISIBILITY
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# define SCM_API extern __attribute__((__visibility__("default")))
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#elif BUILDING_LIBGUILE && defined _MSC_VER
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# define SCM_API __declspec(dllexport) extern
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#elif defined _MSC_VER
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# define SCM_API __declspec(dllimport) extern
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#else
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# define SCM_API extern
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#endif
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/* {Debugging Options}
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*
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* These compile time options determine whether to include code that is only
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* useful for debugging guile itself or C level extensions to guile. The
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* common prefix for all option macros of this kind is "SCM_DEBUG_". It is
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* guaranteed that a macro named SCM_DEBUG_XXX is always defined (typically to
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* either 0 or 1), i. e. there is no need to test for the undefined case.
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* This allows to use these definitions comfortably within code, as in the
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* following example:
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* #define FOO do { if (SCM_DEBUG_XXX) bar(); else baz(); } while (0)
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* Any sane compiler will remove the unused branch without any performance
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* penalty for the resulting code.
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*
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* Note: Some SCM_DEBUG_XXX options are not settable at configure time.
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* To change the value of such options you will have to edit this header
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* file or give suitable options to make, like:
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* make all CFLAGS="-DSCM_DEBUG_XXX=1 ..."
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*/
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/* The value of SCM_DEBUG determines the default for most of the not yet
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* defined debugging options. This allows, for example, to enable most of the
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* debugging options by simply defining SCM_DEBUG as 1.
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*/
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#ifndef SCM_DEBUG
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#define SCM_DEBUG 0
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#endif
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/* For debugging purposes: define this is to ensure nobody is using
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* the mark bits outside of the marking phase. This is meant for
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* debugging purposes only.
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*/
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#ifndef SCM_DEBUG_MARKING_API
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#define SCM_DEBUG_MARKING_API 0
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#endif
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/* If SCM_DEBUG_CELL_ACCESSES is set to 1, cell accesses will perform
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* exhaustive parameter checking: It will be verified that cell parameters
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* actually point to a valid heap cell. Note: If this option is enabled,
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* guile will run about ten times slower than normally.
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*/
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#ifndef SCM_DEBUG_CELL_ACCESSES
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#define SCM_DEBUG_CELL_ACCESSES SCM_DEBUG
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#endif
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/* If SCM_DEBUG_INTERRUPTS is set to 1, with every deferring and allowing of
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* interrupts a consistency check will be performed.
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*/
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#ifndef SCM_DEBUG_INTERRUPTS
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#define SCM_DEBUG_INTERRUPTS SCM_DEBUG
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#endif
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/* If SCM_DEBUG_PAIR_ACCESSES is set to 1, accesses to cons cells will be
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* exhaustively checked. Note: If this option is enabled, guile will run
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* slower than normally.
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*/
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#ifndef SCM_DEBUG_PAIR_ACCESSES
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#define SCM_DEBUG_PAIR_ACCESSES SCM_DEBUG
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#endif
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/* If SCM_DEBUG_REST_ARGUMENT is set to 1, functions that take rest arguments
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* will check whether the rest arguments are actually passed as a proper list.
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* Otherwise, if SCM_DEBUG_REST_ARGUMENT is 0, functions that take rest
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* arguments will take it for granted that these are passed as a proper list.
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*/
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#ifndef SCM_DEBUG_REST_ARGUMENT
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#define SCM_DEBUG_REST_ARGUMENT SCM_DEBUG
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#endif
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/* The macro SCM_DEBUG_TYPING_STRICTNESS indicates what level of type checking
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* shall be performed with respect to the use of the SCM datatype. The macro
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* may be defined to one of the values 0, 1 and 2.
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*
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* A value of 0 means that there will be no compile time type checking, since
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* the SCM datatype will be declared as an integral type. This setting should
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* only be used on systems, where casting from integral types to pointers may
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* lead to loss of bit information.
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*
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* A value of 1 means that there will an intermediate level of compile time
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* type checking, since the SCM datatype will be declared as a pointer to an
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* undefined struct. This setting is the default, since it does not cost
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* anything in terms of performance or code size.
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*
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* A value of 2 provides a maximum level of compile time type checking since
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* the SCM datatype will be declared as a struct. This setting should be used
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* for _compile time_ type checking only, since the compiled result is likely
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* to be quite inefficient. The right way to make use of this option is to do
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* a 'make clean; make CFLAGS=-DSCM_DEBUG_TYPING_STRICTNESS=2', fix your
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* errors, and then do 'make clean; make'.
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*/
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#ifndef SCM_DEBUG_TYPING_STRICTNESS
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#define SCM_DEBUG_TYPING_STRICTNESS 1
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#endif
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/* If SCM_DEBUG_DEBUGGING_SUPPORT is set to 1, guile will provide a set of
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* special functions that support debugging with a debugger like gdb or
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* debugging of guile internals on the scheme level. The behaviour of guile
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* is not changed by this macro, only the set of functions that are available
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* will differ. All functions that are introduced this way have the prefix
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* 'scm_dbg_' on the C level and the prefix 'dbg-' on the scheme level. This
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* allows to easily determine the set of support functions, given that your
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* debugger or repl provide automatic name completion. Note that these
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* functions are intended to be used during interactive debugging sessions
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* only. They are not considered part of guile's official API. They may
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* change or disappear without notice or deprecation phase.
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*/
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#ifndef SCM_DEBUG_DEBUGGING_SUPPORT
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#define SCM_DEBUG_DEBUGGING_SUPPORT SCM_DEBUG
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#endif
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/* {Feature Options}
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*
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* These compile time options determine whether code for certain features
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* should be compiled into guile. The common prefix for all option macros
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* of this kind is "SCM_ENABLE_". It is guaranteed that a macro named
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* SCM_ENABLE_XXX is defined to be either 0 or 1, i. e. there is no need to
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* test for the undefined case. This allows to use these definitions
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* comfortably within code, as in the following example:
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* #define FOO do { if (SCM_ENABLE_XXX) bar(); else baz(); } while (0)
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* Any sane compiler will remove the unused branch without any performance
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* penalty for the resulting code.
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*
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* Note: Some SCM_ENABLE_XXX options are not settable at configure time.
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* To change the value of such options you will have to edit this header
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* file or give suitable options to make, like:
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* make all CFLAGS="-DSCM_ENABLE_XXX=1 ..."
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*/
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/* If SCM_ENABLE_DEPRECATED is set to 1, deprecated code will be included in
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* guile, as well as some functions to issue run-time warnings about uses of
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* deprecated functions.
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*/
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#ifndef SCM_ENABLE_DEPRECATED
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#define SCM_ENABLE_DEPRECATED 0
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#endif
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/* {Architecture and compiler properties}
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*
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* Guile as of today can only work on systems which fulfill at least the
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* following requirements:
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*
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* - scm_t_bits and SCM variables have at least 32 bits.
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* Guile's type system is based on this assumption.
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*
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* - sizeof (scm_t_bits) >= sizeof (void*) and sizeof (SCM) >= sizeof (void*)
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* Guile's type system is based on this assumption, since it must be
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* possible to store pointers to cells on the heap in scm_t_bits and SCM
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* variables.
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*
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* - sizeof (scm_t_bits) >= 4 and sizeof (scm_t_bits) is a power of 2.
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* Guile's type system is based on this assumption. In particular, it is
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* assumed that cells, i. e. pairs of scm_t_bits variables, are eight
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* character aligned. This is because three bits of a scm_t_bits variable
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* that is holding a pointer to a cell on the heap must be available for
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* storing type data.
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*
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* - sizeof (scm_t_bits) <= sizeof (void*) and sizeof (SCM) <= sizeof (void*)
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* In some parts of guile, scm_t_bits and SCM variables are passed to
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* functions as void* arguments. Together with the requirement above, this
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* requires a one-to-one correspondence between the size of a void* and the
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* sizes of scm_t_bits and SCM variables.
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*
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* - numbers are encoded using two's complement.
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* The implementation of the bitwise scheme level operations is based on
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* this assumption.
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*
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* - ... add more
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*/
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#ifdef CHAR_BIT
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# define SCM_CHAR_BIT CHAR_BIT
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#else
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# define SCM_CHAR_BIT 8
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#endif
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#ifdef LONG_BIT
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# define SCM_LONG_BIT LONG_BIT
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#else
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# define SCM_LONG_BIT (SCM_CHAR_BIT * sizeof (long) / sizeof (char))
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#endif
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#ifdef UCHAR_MAX
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# define SCM_CHAR_CODE_LIMIT (UCHAR_MAX + 1L)
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#else
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# define SCM_CHAR_CODE_LIMIT 256L
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#endif
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#define SCM_I_UTYPE_MAX(type) ((type)-1)
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#define SCM_I_TYPE_MAX(type,umax) ((type)((umax)/2))
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#define SCM_I_TYPE_MIN(type,umax) (-((type)((umax)/2))-1)
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#define SCM_T_UINT8_MAX SCM_I_UTYPE_MAX(scm_t_uint8)
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#define SCM_T_INT8_MIN SCM_I_TYPE_MIN(scm_t_int8,SCM_T_UINT8_MAX)
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#define SCM_T_INT8_MAX SCM_I_TYPE_MAX(scm_t_int8,SCM_T_UINT8_MAX)
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#define SCM_T_UINT16_MAX SCM_I_UTYPE_MAX(scm_t_uint16)
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#define SCM_T_INT16_MIN SCM_I_TYPE_MIN(scm_t_int16,SCM_T_UINT16_MAX)
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#define SCM_T_INT16_MAX SCM_I_TYPE_MAX(scm_t_int16,SCM_T_UINT16_MAX)
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#define SCM_T_UINT32_MAX SCM_I_UTYPE_MAX(scm_t_uint32)
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#define SCM_T_INT32_MIN SCM_I_TYPE_MIN(scm_t_int32,SCM_T_UINT32_MAX)
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#define SCM_T_INT32_MAX SCM_I_TYPE_MAX(scm_t_int32,SCM_T_UINT32_MAX)
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#if SCM_HAVE_T_INT64
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#define SCM_T_UINT64_MAX SCM_I_UTYPE_MAX(scm_t_uint64)
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#define SCM_T_INT64_MIN SCM_I_TYPE_MIN(scm_t_int64,SCM_T_UINT64_MAX)
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#define SCM_T_INT64_MAX SCM_I_TYPE_MAX(scm_t_int64,SCM_T_UINT64_MAX)
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#endif
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#if SCM_SIZEOF_LONG_LONG
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#define SCM_I_ULLONG_MAX SCM_I_UTYPE_MAX(unsigned long long)
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#define SCM_I_LLONG_MIN SCM_I_TYPE_MIN(long long,SCM_I_ULLONG_MAX)
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#define SCM_I_LLONG_MAX SCM_I_TYPE_MAX(long long,SCM_I_ULLONG_MAX)
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#endif
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#define SCM_T_UINTMAX_MAX SCM_I_UTYPE_MAX(scm_t_uintmax)
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#define SCM_T_INTMAX_MIN SCM_I_TYPE_MIN(scm_t_intmax,SCM_T_UINTMAX_MAX)
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#define SCM_T_INTMAX_MAX SCM_I_TYPE_MAX(scm_t_intmax,SCM_T_UINTMAX_MAX)
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#define SCM_I_SIZE_MAX SCM_I_UTYPE_MAX(size_t)
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#define SCM_I_SSIZE_MIN SCM_I_TYPE_MIN(ssize_t,SCM_I_SIZE_MAX)
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#define SCM_I_SSIZE_MAX SCM_I_TYPE_MAX(ssize_t,SCM_I_SIZE_MAX)
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#include "libguile/tags.h"
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#ifdef vms
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# ifndef CHEAP_CONTINUATIONS
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typedef int jmp_buf[17];
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extern int setjump(jmp_buf env);
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extern int longjump(jmp_buf env, int ret);
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# define setjmp setjump
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# define longjmp longjump
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# else
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# include <setjmp.h>
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# endif
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#else /* ndef vms */
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# ifdef _CRAY1
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typedef int jmp_buf[112];
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extern int setjump(jmp_buf env);
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extern int longjump(jmp_buf env, int ret);
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# define setjmp setjump
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# define longjmp longjump
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# else /* ndef _CRAY1 */
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# if defined (__ia64__)
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/* For IA64, emulate the setjmp API using getcontext. */
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# include <signal.h>
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# include <ucontext.h>
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typedef struct {
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ucontext_t ctx;
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int fresh;
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} jmp_buf;
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# define setjmp(JB) \
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( (JB).fresh = 1, \
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getcontext (&((JB).ctx)), \
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((JB).fresh ? ((JB).fresh = 0, 0) : 1) )
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# define longjmp(JB,VAL) scm_ia64_longjmp (&(JB), VAL)
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void scm_ia64_longjmp (jmp_buf *, int);
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# else /* ndef __ia64__ */
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# include <setjmp.h>
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# endif /* ndef __ia64__ */
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# endif /* ndef _CRAY1 */
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#endif /* ndef vms */
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/* James Clark came up with this neat one instruction fix for
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* continuations on the SPARC. It flushes the register windows so
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* that all the state of the process is contained in the stack.
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*/
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#if defined (sparc) || defined (__sparc__) || defined (__sparc)
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# define SCM_FLUSH_REGISTER_WINDOWS asm("ta 3")
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#else
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# define SCM_FLUSH_REGISTER_WINDOWS /* empty */
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#endif
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/* If stack is not longword aligned then
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*/
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/* #define SHORT_ALIGN */
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#ifdef THINK_C
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# define SHORT_ALIGN
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#endif
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#ifdef MSDOS
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# define SHORT_ALIGN
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#endif
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#ifdef atarist
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# define SHORT_ALIGN
|
||
#endif
|
||
|
||
#ifdef SHORT_ALIGN
|
||
typedef short SCM_STACKITEM;
|
||
#else
|
||
typedef long SCM_STACKITEM;
|
||
#endif
|
||
|
||
/* Cast pointer through (void *) in order to avoid compiler warnings
|
||
when strict aliasing is enabled */
|
||
#define SCM_STACK_PTR(ptr) ((SCM_STACKITEM *) (void *) (ptr))
|
||
|
||
|
||
#define SCM_ASYNC_TICK /*fixme* should change names */ \
|
||
do { \
|
||
if (SCM_I_CURRENT_THREAD->pending_asyncs) \
|
||
scm_async_click (); \
|
||
} while (0)
|
||
|
||
|
||
/* Anthony Green writes:
|
||
When the compiler sees...
|
||
DEFER_INTS;
|
||
[critical code here]
|
||
ALLOW_INTS;
|
||
...it doesn't actually promise to keep the critical code within the
|
||
boundries of the DEFER/ALLOW_INTS instructions. It may very well
|
||
schedule it outside of the magic defined in those macros.
|
||
|
||
However, GCC's volatile asm feature forms a barrier over which code is
|
||
never moved. So if you add...
|
||
asm ("");
|
||
...to each of the DEFER_INTS and ALLOW_INTS macros, the critical
|
||
code will always remain in place. asm's without inputs or outputs
|
||
are implicitly volatile. */
|
||
#ifdef __GNUC__
|
||
#define SCM_FENCE asm /* volatile */ ("")
|
||
#elif defined (__INTEL_COMPILER) && defined (__ia64)
|
||
#define SCM_FENCE __memory_barrier()
|
||
#else
|
||
#define SCM_FENCE
|
||
#endif
|
||
|
||
#define SCM_TICK \
|
||
do { \
|
||
SCM_ASYNC_TICK; \
|
||
SCM_THREAD_SWITCHING_CODE; \
|
||
} while (0)
|
||
|
||
|
||
|
||
/** SCM_ASSERT
|
||
**
|
||
**/
|
||
|
||
|
||
#ifdef SCM_RECKLESS
|
||
#define SCM_ASSERT(_cond, _arg, _pos, _subr)
|
||
#define SCM_ASSERT_TYPE(_cond, _arg, _pos, _subr, _msg)
|
||
#define SCM_ASRTGO(_cond, _label)
|
||
#else
|
||
#define SCM_ASSERT(_cond, _arg, _pos, _subr) \
|
||
do { if (SCM_UNLIKELY (!(_cond))) \
|
||
scm_wrong_type_arg (_subr, _pos, _arg); } while (0)
|
||
#define SCM_ASSERT_TYPE(_cond, _arg, _pos, _subr, _msg) \
|
||
do { if (SCM_UNLIKELY (!(_cond))) \
|
||
scm_wrong_type_arg_msg(_subr, _pos, _arg, _msg); } while (0)
|
||
#define SCM_ASRTGO(_cond, _label) \
|
||
do { if (SCM_UNLIKELY (!(_cond))) \
|
||
goto _label; } while (0)
|
||
#endif
|
||
|
||
/*
|
||
* SCM_WTA_DISPATCH
|
||
*/
|
||
|
||
/* Dirk:FIXME:: In all of the SCM_WTA_DISPATCH_* macros it is assumed that
|
||
* 'gf' is zero if uninitialized. It would be cleaner if some valid SCM value
|
||
* like SCM_BOOL_F or SCM_UNDEFINED was chosen.
|
||
*/
|
||
|
||
SCM_API SCM scm_call_generic_0 (SCM gf);
|
||
|
||
#define SCM_WTA_DISPATCH_0(gf, subr) \
|
||
return (SCM_UNPACK (gf) \
|
||
? scm_call_generic_0 ((gf)) \
|
||
: (scm_error_num_args_subr ((subr)), SCM_UNSPECIFIED))
|
||
#define SCM_GASSERT0(cond, gf, subr) \
|
||
if (SCM_UNLIKELY(!(cond))) \
|
||
SCM_WTA_DISPATCH_0((gf), (subr))
|
||
|
||
SCM_API SCM scm_call_generic_1 (SCM gf, SCM a1);
|
||
|
||
#define SCM_WTA_DISPATCH_1(gf, a1, pos, subr) \
|
||
return (SCM_UNPACK (gf) \
|
||
? scm_call_generic_1 ((gf), (a1)) \
|
||
: (scm_wrong_type_arg ((subr), (pos), (a1)), SCM_UNSPECIFIED))
|
||
#define SCM_GASSERT1(cond, gf, a1, pos, subr) \
|
||
if (SCM_UNLIKELY (!(cond))) \
|
||
SCM_WTA_DISPATCH_1((gf), (a1), (pos), (subr))
|
||
|
||
SCM_API SCM scm_call_generic_2 (SCM gf, SCM a1, SCM a2);
|
||
|
||
#define SCM_WTA_DISPATCH_2(gf, a1, a2, pos, subr) \
|
||
return (SCM_UNPACK (gf) \
|
||
? scm_call_generic_2 ((gf), (a1), (a2)) \
|
||
: (scm_wrong_type_arg ((subr), (pos), \
|
||
(pos) == SCM_ARG1 ? (a1) : (a2)), \
|
||
SCM_UNSPECIFIED))
|
||
#define SCM_GASSERT2(cond, gf, a1, a2, pos, subr) \
|
||
if (SCM_UNLIKELY (!(cond))) \
|
||
SCM_WTA_DISPATCH_2((gf), (a1), (a2), (pos), (subr))
|
||
|
||
SCM_API SCM scm_apply_generic (SCM gf, SCM args);
|
||
|
||
#define SCM_WTA_DISPATCH_n(gf, args, pos, subr) \
|
||
return (SCM_UNPACK (gf) \
|
||
? scm_apply_generic ((gf), (args)) \
|
||
: (scm_wrong_type_arg ((subr), (pos), \
|
||
scm_list_ref ((args), \
|
||
scm_from_int ((pos) - 1))), \
|
||
SCM_UNSPECIFIED))
|
||
#define SCM_GASSERTn(cond, gf, args, pos, subr) \
|
||
if (SCM_UNLIKELY (!(cond))) \
|
||
SCM_WTA_DISPATCH_n((gf), (args), (pos), (subr))
|
||
|
||
#ifndef SCM_MAGIC_SNARFER
|
||
/* Let these macros pass through if
|
||
we are snarfing; thus we can tell the
|
||
difference between the use of an actual
|
||
number vs. the use of one of these macros --
|
||
actual numbers in SCM_VALIDATE_* and SCM_ASSERT
|
||
constructs must match the formal argument name,
|
||
but using SCM_ARG* avoids the test */
|
||
|
||
#define SCM_ARGn 0
|
||
#define SCM_ARG1 1
|
||
#define SCM_ARG2 2
|
||
#define SCM_ARG3 3
|
||
#define SCM_ARG4 4
|
||
#define SCM_ARG5 5
|
||
#define SCM_ARG6 6
|
||
#define SCM_ARG7 7
|
||
|
||
#endif /* SCM_MAGIC_SNARFER */
|
||
|
||
|
||
|
||
/* SCM_EXIT_SUCCESS is the default code to return from SCM if no errors
|
||
* were encountered. SCM_EXIT_FAILURE is the default code to return from
|
||
* SCM if errors were encountered. The return code can be explicitly
|
||
* specified in a SCM program with (scm_quit <n>).
|
||
*/
|
||
|
||
#ifndef SCM_EXIT_SUCCESS
|
||
#ifdef vms
|
||
#define SCM_EXIT_SUCCESS 1
|
||
#else
|
||
#define SCM_EXIT_SUCCESS 0
|
||
#endif /* def vms */
|
||
#endif /* ndef SCM_EXIT_SUCCESS */
|
||
#ifndef SCM_EXIT_FAILURE
|
||
#ifdef vms
|
||
#define SCM_EXIT_FAILURE 2
|
||
#else
|
||
#define SCM_EXIT_FAILURE 1
|
||
#endif /* def vms */
|
||
#endif /* ndef SCM_EXIT_FAILURE */
|
||
|
||
/* Define SCM_C_INLINE_KEYWORD so that it can be used as a replacement
|
||
for the "inline" keyword, expanding to nothing when "inline" is not
|
||
available.
|
||
*/
|
||
|
||
#ifdef SCM_C_INLINE
|
||
#define SCM_C_INLINE_KEYWORD SCM_C_INLINE
|
||
#else
|
||
#define SCM_C_INLINE_KEYWORD
|
||
#endif
|
||
|
||
#endif /* SCM___SCM_H */
|
||
|
||
/*
|
||
Local Variables:
|
||
c-file-style: "gnu"
|
||
End:
|
||
*/
|