/*
* inc/compat.h
* Include file with declarations for tranportability
* Microsoft C 5.0 - Turbo C 2.0 - Vax C 3.0 - GNU C 3.2
* Grupo de Tecnologia em Computacao Grafica - PUC/RIO
* 26 Mar 92
*/

/*
* Ultimas modificacoes:
*
* 15/04/91	- definida variavel __GNUC386__ - Andre & Levy
* 17/04/91	- retirada define __GNUC386__ - deve ser definida na
*		  linha de comando com -D__GNUC386__ - Sedrez
* 29/05/91	- agora os defines de includes tem sempre a primeira
*		  letra em maiuscula - Sedrez
* 16/09/91	- normalizado por sistema operacional
* 17/10/91      - completada remodelagem - aceita ate AIX
* 18/03/92      - definida variavel __NDPC__ - Andre & Sedrez
* 23/03/92      - colocacao de min e max para NDPC e as funcoes FP_OFF,
*                 FP_SEG e MK_FP. Mudanca do nome do include Values para
*                 <limits.h>, eh igual ao MSC. declaracao da funcao
*                 ecvt - Andre
* 26/03/92      - Mudanca do nome do include Malloc para <stdlib.h> - Andre
* 08/05/92	- definida variavel __WATCOMC__ - Andre & Levy
* 13/08/92      - definido Memory para VAXC como sendo:   string
*
*/

/*
* Define-se aqui uma macro com o nome do compilador. A definicao deve
* seguir o padrao ANSI para nomes definidos internamente : __NOME__,
* ou seja, dois "underscores" ( '_' ) a frente do nome e dois atras.
*/

/*
* Sao os seguintes os compiladores ja' cadastrados :
* __TURBOC__    Turbo C e Turbo C++, versao 1.0 ou posterior
* __TURBOCPP__  Turbo C++, versao 1.0 ou posterior
* __MSC__       Microsoft C versao 5.0 ou posterior
* __VAXC__      Vax C versao 3.0 ou posterior
* __GNUC__      GNU C versao 3.2 ou posterior
* __GNUC386__   GNU C versao 3.2 para UNIX System V/386
* __CCPP__      C++ version 2
* __ULTRIXC__   ULTRIX C ( C da DECstation 5000 )
* __NDPC__      NDP C-386 Micro Way versao 3.1
* __WATCOMC__   WATCOM C/386 versao 9.0
* __ACCSUN__	Sun ANSI C (Q-ANSI C compiler) versao 1.1
*/

/*
* Sao os seguintes os sistemas operacionais ja cadastrados :
* __MSDOS__	Microsoft ou PC DOS
* __VMS__	VAX VMS
* __UNIX__	UNIX
* __ULTRIX__	unix da DECstation 5000
* __SunOS__	unix da Sun
* __AIX__	unix da RISC 6000
* __CLIX__	unix da InterPro 32
* __DGR8000__	unix da Digirede
* __IRIX__	unix da Silicon Graphics
* __scosysv__	unix do SCO
*/

/*
* Sao os seguintes os pre-processadores ja cadastrados :
* __CPPA	ANSI ( assumido por default )
* __CPPKR	Kernighan & Ritchie
* __CPPI	Intermediate
* __CPPSTR	String pre-processor
*/

/*
* Sao as seguintes as "strange reactions" ja cadastradas :
* __NOUNIN	no union initialization
* __UNASST	union as structure ( opposite: as first element )
* __NOSBF	no signed bit field
*/

/*
* Sao os seguintes os tipos de linker ja cadastrados :
* __IGCASE	ignore case
* __DYNSTR	dynamic stream pointer
*/

/*
* Sao as seguintes as rotinas ou declaracoes ausentes :
* __MINMAX	min(a,b) e max(a,b)
* __SEEK	SEEK_SET, SEEK_CUR e SEEK_END
* __FLT		FLT_MIN, FLT_MAX, FLT_DIG
* __DIV		div(struct div_t) e ldiv(struct ldiv_t)
* __C_LU	tolower & toupper
* __S_LU	strlwr & strupr
* __SDUP	strdup(s)
* __SICMP	stricmp
* __MMOV	memmove(d,s,o)
* __ULNK        unlink
* __RMV         remove
*/

#ifndef __COMPAT_H__
#define __COMPAT_H__

/****************************************************/
/*                                                  */
/*                                                  */
/*     Microsoft C 5.x identificado - __MSC__       */
/*                                                  */
/*                                                  */
/****************************************************/

#if defined(MSDOS) && defined(M_I86)

#ifdef __TIMESTAP__
#define __MSC__ 0x0510
#else
#define __MSC__ 0x0500
#endif /* __TIMESTAP */

#define __MSDOS__
#define __NOSBF

 /* intrinsic functions */
#pragma intrinsic(_enable,_disable,inp,outp,inpw,outpw)
#if 0
#pragma intrinsic(memset,memcpy,memcmp)
#pragma intrinsic(abs,sqrt,fabs)
#pragma intrinsic(sin,cos,tan,atan,atan2)
#endif

#else

/****************************************************/
/*                                                  */
/*                                                  */
/*      Turbo C 2.x identificado - __TURBOC__       */
/*                                                  */
/*                                                  */
/****************************************************/

#if defined(__TURBOC__)  /* ja' existente em Turbo C */

/****************************************************/
/*                                                  */
/*                                                  */
/*    Turbo C++ 1.x identificado - __TURBOCPP__     */
/*                                                  */
/*                                                  */
/****************************************************/

#ifdef __cplusplus
#define __TURBOCPP__ __TURBOC__
#endif /* __cplusplus */

/* __MSDOS__ ja esta identificado */

#else

/****************************************************/
/*                                                  */
/*                                                  */
/*        VAX C 3.x identificado - __VAXC__         */
/*                                                  */
/*                                                  */
/****************************************************/

#ifdef __CLIX__
/* CLIX - acc nao gosta de defined() */
#define __IsVax 0
#else
#define __IsVax defined(vax) || defined(vms) || defined(vaxc) || defined(vax11c) || \
                defined(VAX) || defined(VMS) || defined(VAXC) || defined(VAX11C)
#endif

#if __IsVax

#define __VAXC__ 0x0300
#define __VMS__

#define __CPPKR
#define __NOUNIN
#define __NOSBF
#define __IGCASE
#define __DYNSTR
#define __MINMAX
#define __S_LU
#define __SICMP
#define __SDUP
#define __ULNK

#else

/****************************************************/
/*                                                  */
/*                                                  */
/*        GNU C 3.x identificado - __GNUC__         */
/*                                                  */
/*                                                  */
/****************************************************/
#if defined(__GNUC__)
/* identificador __GNU__ ja' definido */

#ifdef __386ix__
#define __GNUC386__
#endif /* __386ix__ */

#define __UNIX__

#define __UNASST

#ifndef __GNUC386__
#define __SICMP
#define __S_LU

#ifndef __ULTRIX__
#define __MMOV
#define __DIV
#else
#define __SDUP
#endif /* __ULTRIX__ */

#endif

#ifdef __SunOS__
#define __RMV
#endif /* __SunOS__ */

#ifdef __DGR8000__
#define __IGCASE
#define __SICMP
#define __S_LU
#define __DIV
#define __SYSV__
#define __SEEK
#endif /* __DGR8000__ */

#define __MINMAX

#else

/****************************************************/
/*                                                  */
/*                                                  */
/*      NDP C 386 3.1 identificado - __NDPC__       */
/*                                                  */
/*                                                  */
/****************************************************/
#if defined(__NDPC__)
/* identificador __NDPC__ ja' definido */

#define far

#define __DYNSTR
#define __MSDOS__
#define __MINMAX

#else

/****************************************************/
/*                                                  */
/*                                                  */
/*    WATCOM C 386 9.0 identificado - __WATCOMC__   */
/*                                                  */
/*                                                  */
/****************************************************/
#if defined(__WATCOMC__)
/* identificador __WATCOMC__ ja' definido */

#define __DYNSTR
#define __MSDOS__

#else

/****************************************************/
/*                                                  */
/*                                                  */
/*        AT&T C++ identificado - __CCPP__          */
/*                                                  */
/*                                                  */
/****************************************************/

#ifdef __cplusplus

#define __CCPP__	0x0200

#if defined(__AIX__) || defined(__ULTRIX__) || defined(__SunOS__)
#define __UNIX__
#define __SICMP
#endif /* __AIX__ || __ULTRIX__ || __SunOS__ */

#ifdef __SunOS__
#define __CPPKR
#define __NOSBF
#define __NOUNIN
#define __MINMAX
#define __S_LU
#define __DIV
#define __MMOV
#define __SICMP
#define __RMV
#endif /* __SunOS__ */

/* reserved  words used - class, delete, new & virtual */
/* as maiusculas nao estao definidas */

#define	class	CLASS
#define	delete	DELETE
#define	new	NEW
#define	virtual	VIRTUAL

#else

/****************************************************/
/*                                                  */
/*                                                  */
/*        Nenhum compilador identificado            */
/*                                                  */
/*                                                  */
/****************************************************/

#ifdef __AIX__
#define __UNIX__
#define __IGCASE
#define __MINMAX
#define __SICMP
#define __S_LU
#endif /* __AIX__ */

#if defined(ultrix) || defined(__ULTRIX__)
#define __UNIX__
#ifndef __ULTRIX__
#define __ULTRIX__
#endif /* __ULTRIX__ */
#endif /* ultrix || __ULTRIX__ */

#ifdef __SunOS__

/* Provavelmente Sun ANSI C */
#ifdef __STDC__
#define __ACCSUN__
#endif

#define __UNIX__

#endif /* __SunOS__ */

#ifdef __IRIX__

#define __UNIX__
#define __SYSV__
#define __S_LU
#define __SICMP
#define __MINMAX
#endif /*__IRIX__*/

#ifdef __scosysv__

#define __UNIX__
#define __MINMAX
#define __SICMP
#define __S_LU
#define __NOSBF

#endif /* __scosysv__*/ 

#ifdef __CLIX__

#ifndef __UNIX__ /* acc ja' tem isso definido */
#define __UNIX__
#endif

#define __MINMAX
#define __DYNSTR
#define __SDUP
#define __S_LU
#define __C_LU
#define __SICMP
/* #define __CPPKR */
#endif /* __CLIX__ */

#ifdef __DGR8000__
#define __SICMP
#define __S_LU
#define __DIV
#define __SYSV__
#define __SEEK
#endif /* __DGR8000__ */

#endif /* __CCPP__ */
#endif /* __WATCOMC__ */
#endif /* __NDPC__ */
#endif /* __GNUC__ */
#endif /* __VAXC__ */
#undef __IsVax
#endif /* __TURBOC__ || __TURBOCPP__ */
#endif /* __MSC__ */

/* PharLap 286|DOS Extender carregado */
#ifdef DOSX286
#define __DOSX286__
#endif /* DOSX286 */


/* define includes - para ser mais rapido */
/*
** Deste modo, usa-se :
**
**   #include Name
**
** ao inves de :
**
**   #include <name.h>       ou
**   #include "name.h"
**
*/

/***********************************************************
************************************************************
**                                                        **
**            * * * * A T E N C A O * * * *               **
**                                                        **
**        As definicoes de include comecam com            **
**   letras maiusculas para evitar problemas com outras   **
**   definicoes do mesmo nome (p. e., numa estrutura),    **
**   e com recursao na expansao da macro (com #define).   **
**                                                        **
************************************************************
***********************************************************/

#ifdef __VAXC__

   /* VAX C nao tem io.h - tem unixio.h */
#define Io           unixio
#define Fcntl        unixio
#define Dos          unixlib
#define Conio        unixio

#define Memory       string

#define signed /* VAXC nao tem signed */

#else

#define Ctype        <ctype.h>

#ifdef __MSDOS__

#ifdef __TURBOC__
#define Direct       <dir.h>
#else
#define Direct       <direct.h>
#endif /* __TURBOC__ */

#else

#ifdef __UNIX__
#define Direct       <fcntl.h>
#endif /* __UNIX__ */

#endif /* __MSDOS__ */

#define Fcntl        <fcntl.h>
#define Graphics     <graphics.h>

#if defined(__SunOS__) && !defined(__GNUC__) && !defined(__ACCSUN__)
#define Float        <floatingpoint.h>
#else
#define Float        <float.h>
#endif /* __SunOS__ && !__GNUC__ && !__ACCSUN__ */

#if defined(__SunOS__)
#define Floatingpoint     <floatingpoint.h>
#else
#define Floatingpoint     <float.h>
#endif /* __SunOS__ */

/* Gnu C e C++ (SUN) nao tem io.h */
#ifdef __UNIX__

#define Conio        Stdio

#if defined(__CCPP__) && defined(__SunOS__)
#define Dos          <sysent.h>
#else
#define Dos          <unistd.h>
#endif /* __CCPP__ || _SunOS__ */

#define Io           <unistd.h>

#else

#define Dos          <dos.h>
#ifdef __NDPC__
#define Conio        <dos.h>
#define Io           <stdio.h>
#else
#define Conio        <conio.h>
#define Io           <io.h>
#endif /* __NDPC__ */

#endif /* __UNIX__ */

#if defined(__CCPP__) && defined(__SunOS__)
#define Limits       <values.h>
#define LONG_MAX MAXLONG
#else
#define Limits       <limits.h>
#endif

#ifdef __TURBOC__
#define Malloc       <alloc.h>
#else
#ifdef __NDPC__
#define Malloc       <stdlib.h>
#else
#define Malloc       <malloc.h>
#endif /* __NDPC__ */
#endif /* __TURBOC__ */

#define Math         <math.h>

#ifdef __TURBOC__
#define Memory       <mem.h>
#else
#ifdef __CLIX__
#define Memory	     <string.h>
#else
#if defined(__NDPC__) || defined(__WATCOMC__)
#define Memory	     <string.h>
#else
#define Memory       <memory.h>
#endif /* __NDPC__ || __WATCOMC__*/
#endif /* __CLIX__ */
#endif /* __TURBOC__ */

#define Stddef       <stddef.h>
#define Stdio        <stdio.h>
#define Stdlib       <stdlib.h>
#define Stdarg       <stdarg.h>
#define String       <string.h>
#define Time         <time.h>

#if defined(__MSC__) || defined(__NDPC__) || defined(__WATCOMC__)
#define Values       <limits.h>
#else
#define Values       <values.h>
#endif /* __MSC__ || __NDPC__ || __WATCOMC__*/

#define Bind         <bind.h>
#define Chrfont      <chrfont.h>
#define Drvfunc      <drvfunc.h>
#define Ems          <ems.h>
#define Gks          <gks.h>
#define Gks_data     <gks_data.h>
#define Gks_defs     <gks_defs.h>
#define Gks_func     <gks_func.h>
#define Gks_ifun     <gks_ifun.h>
#define Gks_svga     <gks_svga.h>
#define Gks_tab      <gks_tab.h>
#define Gks_type     <gks_type.h>
#define Gksi         <gksi.h>
#define Parametr     <parametr.h>
#define Pckeys       <pckeys.h>
#define Seg          <seg.h>
#define Simula       <simula.h>
#if 0 /* desta eu nao gostei */
#define Tela         "tela.h"
#endif
#define Vax_io       <term_io.h>
#define Term_io      <term_io.h>
#define Xms          <xms.h>

#endif /* __VAXC__ */

/* Storage Classes para importar e exportar variaveis */
/* Algumas podem ser compartilhadas, outras nao */

#if defined(__VAXC__)

#define IMPORT   globalref

#define EXPORTSH globaldef{"GKS_DATA_SHARE"}
#define EXPORTNS globaldef{"GKS_DATA_NOSHARE"} noshare
#define EXPORTRO globaldef{"$CODE"} const

#define STATICSH static
#define STATICNS static noshare
#define STATICRO static const

#else

#define IMPORT   extern

#define EXPORTSH
#define EXPORTNS
#define EXPORTRO const

#define STATICSH static
#define STATICNS static
#define STATICRO static const

#endif /* __VAXC__ */

/* Define particularidades dos compiladores */

/* referencias tipo far - so' tem sentido em MSDOS */
#ifndef __MSDOS__

#define far

#endif /* __MSDOS__ */

#ifdef __SEEK

#define SEEK_SET 0
#define SEEK_CUR 1
#define SEEK_END 2

#endif /* __SEEK */

#ifdef __FLT

#define FLT_DIG		FMAXEXP
#define FLT_MIN		MINFLOAT
#define FLT_MAX		MAXFLOAT

#define DBL_DIG		DMAXEXP
#define DBL_MIN		MINDOUBLE
#define DBL_MAX		MAXDOUBLE

#endif /* __FLT */

#ifdef __MINMAX

int max(int,int);
int min(int,int);

#endif /* __MINMAX */

#ifdef __S_LU

char *strlwr(char *);
char *strupr(char *);

#endif /* __S_LU */

#ifdef __SDUP

char *strdup(const char *);

#endif /* __SDUP */

#ifdef __C_LU

#define tolower(c) ((c)+(isupper(c)?('a'-'A'):0))
#define toupper(c) ((c)-(islower(c)?('a'-'A'):0))

#endif /* __C_LU */

#ifdef __MMOV

void *memmove(void *, void *, unsigned);

#endif /* __MMOV */

#ifdef __SICMP

int stricmp ( const char *, const char * );

#endif /* __SICMP */

#ifdef __RMV

#ifdef __ULNK /* nao posso redirecionar remove para unlink */
int remove ( const char *);
#else
#define remove unlink
#endif /* __ULNK */

#endif /* __RMV */

#ifdef __DIV

typedef struct {
        int quot;
        int rem;
        } div_t;

typedef struct {
        long int quot;
        long int rem;
        } ldiv_t;

 div_t  div   (     int,      int);
ldiv_t ldiv   (long int, long int);

#endif /* __DIV */

/* VAX C - bug na implementacao de div e ldiv */
#ifdef __VAXC__

#define  div _gks_puc_div
#define ldiv _gks_puc_ldiv
#define __DIV

#endif /* __VAXC__ */

#if defined(__MSC__) || !defined(__MSDOS__) || defined(__NDPC__)

 /* funcoes FP_OFF e FP_SEG - nao existem fora de __MSDOS__ */
#if !defined(__MSDOS__) || defined(__NDPC__)
#define FP_OFF(a) ((unsigned)( (long)(a)     &0xffff))
#define FP_SEG(a) ((unsigned)(((long)(a)>>16)&0xffff))

#endif /* __MSC__ || __MSDOS__ */

/* funcao MK_FP - MaKe Far Pointer - nao existe em __MSC__ */
#define MK_FP(seg,ofs) ((void far *)(((unsigned long)(seg)<<16)|(unsigned)(ofs)))

#endif /* __MSDOS__ */

#if defined(__GNUC__) || defined(__NDPC__) || defined(__IRIX__)
/* tem a funcao, mas nao a declaracao */
char *ecvt( double, int, int *, int *);
/* isto e' absolutamente necessario */
#if defined __sparc__ && !defined sparc
#define sparc
#endif /* __sparc__ || sparc */
#if defined __mc68000__ && !defined mc68000
#define mc68000
#endif /* __mc68000 || mc68000 */
#if defined __i386__ && !defined i386
#define i386
#endif /* __i386__ || i386 */
#endif /* __GNUC__ */

/* min e max na forma de macro - alguns compiladores nao tem */
/* necessario para long, float, double ou unsigned como um dos parametros */
#define _mmin(a,b) ((a)<(b)?(a):(b))
#define _mmax(a,b) ((a)>(b)?(a):(b))

#endif /* __COMPAT_H__ */