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- // This may look like C code, but it is really -*- C++ -*-
- /*
- Copyright (C) 1988 Free Software Foundation
- written by Doug Lea (dl@rocky.oswego.edu)
-
- This file is part of GNU CC.
-
- GNU CC is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY. No author or distributor
- accepts responsibility to anyone for the consequences of using it
- or for whether it serves any particular purpose or works at all,
- unless he says so in writing. Refer to the GNU CC General Public
- License for full details.
-
- Everyone is granted permission to copy, modify and redistribute
- GNU CC, but only under the conditions described in the
- GNU CC General Public License. A copy of this license is
- supposed to have been given to you along with GNU CC so you
- can know your rights and responsibilities. It should be in a
- file named COPYING. Among other things, the copyright notice
- and this notice must be preserved on all copies.
- */
-
-
- /*
- This file contains machine and operating-system dependent constants
- used by libg++
- */
-
-
- #ifndef _libconfig_h
-
- #define _libconfig_h 1
-
- #include <values.h>
-
- /*
- define USG for a SystemV-oriented system
- */
-
- //#define USG
-
-
-
- /*
- HAVE_VPRINTF should be set if vprintf is in libc.a
- HAVE_SETVBUF should be set if setvbuf is in libc.a
- HAVE_SETLINEBUF should be set if setlinebuf in libc.a
-
- The following are correct for vax BSD4.3 and sun. Others not yet known
- */
-
- #if defined(vax)
- //#define HAVE_VPRINTF
- //#define HAVE_SETVBUF
- #define HAVE_SETLINEBUF
-
- #elif defined(sun)
- #define HAVE_VPRINTF
- #define HAVE_SETVBUF
- #define HAVE_SETLINEBUF
-
- #elif defined(sequent)
- //#define HAVE_VPRINTF
- //#define HAVE_SETVBUF
- #define HAVE_SETLINEBUF
-
- #elif defined(i386)
- #define HAVE_VPRINTF
- #define HAVE_SETVBUF
- //#define HAVE_SETLINEBUF
- #define USG
-
- #elif defined(atarist)
- #define HAVE_VPRINTF
-
- #endif
-
- /*
- SYSV bcopy, etc.
- */
-
- #ifdef USG
- #define bzero(src, len) memset((src), 0, (len))
- #define bcopy(src, dest, len) memcopy((dest), (src), (len))
- #define bcmp(s1,s2,n) memcmp((s1),(s2),(n))
- #endif
-
-
- /*
- Define SHOULD_FREE_TO_REALLOC
- if realloc(p, l) only works (or just works best) if the pointer p
- is first passed through free(p).
-
- This should be set for vax 4.3BSD and probably for most other systems
- */
-
- #define SHOULD_FREE_TO_REALLOC 1
-
-
-
-
- /*
- Sizes of shifts for multiple-precision arithmetic.
- These should not be changed unless Integer representation
- as unsigned shorts is changed in the implementation files.
- */
-
- #define I_SHIFT SHORTBITS
- #define I_RADIX ((unsigned long)(1L << I_SHIFT))
- #define I_MAXNUM ((unsigned long)((I_RADIX - 1)))
- #define I_MINNUM ((unsigned long)(I_RADIX >> 1))
- #define I_POSITIVE 1
- #define I_NEGATIVE 0
- #define SHORT_PER_LONG ((LONGBITS + SHORTBITS - 1) / SHORTBITS)
- #define CHAR_PER_LONG ((LONGBITS + CHARBITS - 1) / CHARBITS)
-
- #endif
-