296 lines
5.7 KiB
C
296 lines
5.7 KiB
C
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/********************************************
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Idefault.h
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copyright 1991, 1992. Michael D. Brennan
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This is a source file for mawk, an implementation of
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the AWK programming language.
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Mawk is distributed without warranty under the terms of
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the GNU General Public License, version 2, 1991.
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********************************************/
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/* $Log: Idefault.h,v $
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/* Revision 1.1.1.1 1993/03/21 09:45:37 cgd
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/* initial import of 386bsd-0.1 sources
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/*
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* Revision 3.13 92/03/03 16:40:56 brennan
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* remove HAVE_PRINTF_HD
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*
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* Revision 3.12 91/11/16 15:37:29 brennan
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* add NO_BINMODE
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*
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* Revision 3.11 91/10/29 10:48:40 brennan
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* version 1.09
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*
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* Revision 3.10 91/10/23 10:46:34 brennan
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* MSDOS LM and SM
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*
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* Revision 3.9 91/10/14 09:52:48 brennan
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* added HAVE_PRINTF_HD
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*
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* Revision 3.8 91/09/30 08:11:22 brennan
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* added MAX__INT
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*
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* Revision 3.7 91/08/16 08:49:51 brennan
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* Carl's addition of SW_FP_CHECK for XNX23A
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*
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* Revision 3.6 91/08/13 09:04:05 brennan
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* VERSION .9994
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*
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* Revision 3.5 91/08/03 06:10:46 brennan
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* changed CHECK_DIVZERO macro
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*
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* Revision 3.4 91/08/03 05:35:59 brennan
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* changed name to Idefault.h
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*
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* Revision 3.3 91/06/28 04:36:28 brennan
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* adjustments with __STDC__
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*
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* Revision 3.3 91/06/19 10:21:37 brennan
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* changes for xenix_r2.h and gcc
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*
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* Revision 3.2 91/06/15 09:24:34 brennan
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* Carl's diffs for V7
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*
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* 06/11/91 C. Mascott add default D2BOOL
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*
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* Revision 3.1 91/06/07 10:38:46 brennan
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* VERSION 0.995
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*
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*/
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/* The most common configuration is defined here:
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no function prototypes
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have void*
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have matherr(), strtod(), fmod()
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uses <varargs.h>
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fpe_traps default to off
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and nan comparison is done correctly
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memory is not small
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OS is some flavor of Unix
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*/
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/* WARNING: To port to a new configuration, don't make changes
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here. This file is included at the end of your new
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config.h
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Read the file mawk/INSTALL
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*/
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/*------------- compiler ----------------------------*/
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/* do not have function prototypes */
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#ifndef HAVE_PROTOS
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#define HAVE_PROTOS 0
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#endif
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/* have type void * */
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#ifndef HAVE_VOID_PTR
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#define HAVE_VOID_PTR 1
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#endif
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/* logical test of double is OK */
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#ifndef D2BOOL
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#define D2BOOL(x) (x)
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#endif
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/*---------------- library ----------------------*/
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#ifndef HAVE_MATHERR
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#define HAVE_MATHERR 1
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#endif
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#ifndef HAVE_STRTOD
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#define HAVE_STRTOD 1
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#endif
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#ifndef HAVE_FMOD
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#define HAVE_FMOD 1
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#endif
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/* uses <varargs.h> instead of <stdarg.h> */
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#ifndef HAVE_STDARG_H
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#define HAVE_STDARG_H 0
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#endif
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/* has <string.h>,
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doesn't have <stdlib.h>
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has <fcntl.h>
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*/
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#ifndef HAVE_STRING_H
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#define HAVE_STRING_H 1
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#endif
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#ifndef HAVE_STDLIB_H
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#define HAVE_STDLIB_H 0
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#endif
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#ifndef HAVE_FCNTL_H
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#define HAVE_FCNTL_H 1
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#endif
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/* have pipes */
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#ifndef HAVE_REAL_PIPES
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#define HAVE_REAL_PIPES 1
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#endif
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#ifndef HAVE_FAKE_PIPES
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#define HAVE_FAKE_PIPES 0
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#endif
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/*------------- machine ------------------------*/
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/* ints are 32bits, two complement */
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#ifndef MAX__INT
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#define MAX__INT 0x7fffffff
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#endif
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/* default is IEEE754 and data space is not scarce */
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#ifndef FPE_TRAPS_ON
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#define FPE_TRAPS_ON 0
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#endif
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#ifndef NOINFO_SIGFPE
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#define NOINFO_SIGFPE 0
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#endif
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#if ! FPE_TRAPS_ON
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#undef NOINFO_SIGFPE
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#define NOINFO_SIGFPE 0 /* make sure no one does
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something stupid */
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#endif
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#if NOINFO_SIGFPE
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#define CHECK_DIVZERO(x) if( (x) == 0.0 )rt_error(dz_msg);else
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#endif
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/* SW_FP_CHECK is specific to V7 and XNX23A
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(1) is part of STDC_MATHERR def.
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(2) enables calls to XENIX-68K 2.3A clrerr(), iserr()
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*/
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#ifndef SW_FP_CHECK
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#define SW_FP_CHECK 0
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#endif
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#ifndef TURN_OFF_FPE_TRAPS
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#define TURN_OFF_FPE_TRAPS() /* nothing */
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#endif
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#ifndef HAVE_SMALL_MEMORY
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#define HAVE_SMALL_MEMORY 0
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#endif
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/*------------------------------------------------*/
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#ifndef __STDC__
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#define __STDC__ 0
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#endif
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#if __STDC__
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#undef HAVE_PROTOS
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#define HAVE_PROTOS 1
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#undef HAVE_VOID_PTR
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#define HAVE_VOID_PTR 1
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#undef HAVE_STDARG_H
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#define HAVE_STDARG_H 1
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#undef HAVE_STRING_H
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#define HAVE_STRING_H 1
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#endif
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#if __STDC__ && ! __GNUC__
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/* with gcc __STDC__ can be defined, but stdlib.h is missing */
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#undef HAVE_STDLIB_H
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#define HAVE_STDLIB_H 1
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#endif
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/* the painfull case: we need to catch fpe's and look at errno
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after lib calls */
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#define STDC_MATHERR ((SW_FP_CHECK || FPE_TRAPS_ON) && HAVE_MATHERR==0)
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/*-------------------MSDOS---------------------------------*/
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#ifdef MSDOS
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#ifndef HAVE_REARGV
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#define HAVE_REARGV 0
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#endif
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#undef MAX__INT
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#define MAX__INT 0x7fff
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#if HAVE_SMALL_MEMORY==0
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#define LM_DOS 1
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#else
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#define LM_DOS 0
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#endif
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#define SM_DOS (!LM_DOS)
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#undef HAVE_REAL_PIPES
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#define HAVE_REAL_PIPES 0
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#undef HAVE_FAKE_PIPES
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#define HAVE_FAKE_PIPES 1
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#if SM_DOS
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#ifdef NO_BINMODE
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#undef NO_BINMODE
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#define NO_BINMODE 1 /* hopefully no one needs this */
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#else
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#define NO_BINMODE 0
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#endif
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#else
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#define NO_BINMODE 0
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#endif /* SM_DOS */
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#else /* not defined MSDOS */
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#define MSDOS 0
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#define LM_DOS 0
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#define SM_DOS 0
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#endif /* MSDOS */
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/*----------------------------------------------------------*/
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#if HAVE_PROTOS
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#define PROTO(name, args) name args
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#else
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#define PROTO(name, args) name()
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#endif
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/* ultrix pukes if __STDC__ is defined 0 */
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/* SCO UNIX's cc (from Microsoft) sneezes if __STDC__ is re-#define-d */
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#if (__STDC__ == 0)
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#ifndef M_I386
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#undef __STDC__
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#endif
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#endif
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/* for Think C on the Macintosh, sizeof(size_t) != sizeof(unsigned
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* Rather than unilaterally imposing size_t, when not all compilers would
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* necessarily have it defined, we use the SIZE_T() macro where appropriate
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* to typecast function arguments
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*/
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#ifndef SIZE_T
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#define SIZE_T(x) (x)
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#endif
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