float.h Defines implementation specific macros for dealing with floating point.

Copyright (c) Borland International 1987,1988
All Rights Reserved.
*/
#if __STDC__
#define _Cdecl
#else
#define _Cdecl cdecl
#endif

#define FLT_RADIX 2
#define FLT_ROUNDS 1
#define FLT_GUARD 1
#define FLT_NORMALIZE 1

#define DBL_DIG 15
#define FLT_DIG 6
#define LDBL_DIG 19

#define DBL_MANT_DIG 53
#define FLT_MANT_DIG 24
#define LDBL_MANT_DIG 64

#define DBL_EPSILON 2.2204460492503131E-16
#define FLT_EPSILON 1.19209290E-07F
#define LDBL_EPSILON 1.084202172485504E-19

/* smallest positive IEEE normal numbers */
#define DBL_MIN 2.2250738585072014E-308
#define FLT_MIN 1.17549435E-38F
#define LDBL_MIN _tiny_ldble

#define DBL_MAX _huge_dble
#define FLT_MAX _huge_flt
#define LDBL_MAX _huge_ldble

#define DBL_MAX_EXP +1024
#define FLT_MAX_EXP +128
#define LDBL_MAX_EXP +16384

#define DBL_MAX_10_EXP +308
#define FLT_MAX_10_EXP +38
#define LDBL_MAX_10_EXP +4932

#define DBL_MIN_10_EXP -307
#define FLT_MIN_10_EXP -37
#define LDBL_MIN_10_EXP -4931

#define DBL_MIN_EXP -1021
#define FLT_MIN_EXP -125
#define LDBL_MIN_EXP -16381

extern float _Cdecl _huge_flt;
extern double _Cdecl _huge_dble;
extern long double _Cdecl _huge_ldble;
extern long double _Cdecl _tiny_ldble;

unsigned int _Cdecl _clear87(void);
unsigned int _Cdecl _control87(unsigned int new, unsigned int mask);
void     _Cdecl _fpreset(void);
unsigned int _Cdecl _status87(void);

/* 8087/80287 Status Word format   */

#define SW_INVALID 0x0001 /* Invalid operation */
#define SW_DENORMAL 0x0002 /* Denormalized operand */
#define SW_ZERODIVIDE 0x0004 /* Zero divide */
#define SW_OVERFLOW 0x0008 /* Overflow */
#define SW_UNDERFLOW 0x0010 /* Underflow */
#define SW_INEXACT 0x0020 /* Precision (Inexact result) */

/* 8087/80287 Control Word format */

#define MCW_EM 0x003f /* interrupt Exception Masks */
#define    EM_INVALID 0x0001 /*   invalid */
#define    EM_DENORMAL 0x0002 /*   denormal */
#define    EM_ZERODIVIDE 0x0004 /*   zero divide */
#define    EM_OVERFLOW 0x0008 /*   overflow */
#define    EM_UNDERFLOW 0x0010 /*   underflow */
#define    EM_INEXACT 0x0020 /*   inexact (precision) */

#define MCW_IC 0x1000 /* Infinity Control */
#define    IC_AFFINE 0x1000 /*   affine */
#define    IC_PROJECTIVE 0x0000 /*   projective */

#define MCW_RC 0x0c00 /* Rounding Control */
#define    RC_CHOP 0x0c00 /*   chop */
#define    RC_UP 0x0800 /*   up */
#define    RC_DOWN 0x0400 /*   down */
#define    RC_NEAR 0x0000 /*   near */

#define MCW_PC 0x0300 /* Precision Control */
#define    PC_24 0x0000 /*    24 bits */
#define    PC_53 0x0200 /*    53 bits */
#define    PC_64 0x0300 /*    64 bits */

/* 8087/80287 Initial Control Word */
/* use affine infinity, mask underflow and precision exceptions */

#define CW_DEFAULT (RC_NEAR+PC_64+IC_AFFINE+EM_UNDERFLOW+EM_INEXACT)

/*
SIGFPE signal error types (for integer & float exceptions).
*/
#define FPE_INTOVFLOW 126 /* 80x86 Interrupt on overflow */
#define FPE_INTDIV0 127 /* 80x86 Integer divide by zero */

#define FPE_INVALID 129 /* 80x87 invalid operation */
#define FPE_ZERODIVIDE 131 /* 80x87 divide by zero */
#define FPE_OVERFLOW 132 /* 80x87 arithmetic overflow */
#define FPE_UNDERFLOW 133 /* 80x87 arithmetic underflow */
#define FPE_INEXACT 134 /* 80x87 precision loss */
#define FPE_EXPLICITGEN 140 /* When SIGFPE is raise()'d */

/*
SIGSEGV signal error types.
*/
#define SEGV_BOUND 10 /* A BOUND violation (SIGSEGV) */
#define SEGV_EXPLICITGEN 11 /* When SIGSEGV is raise()'d */

/*
SIGILL signal error types.
*/
#define ILL_EXECUTION 20 /* Illegal operation exception */
#define ILL_EXPLICITGEN 21 /* When SIGILL is raise()'d */

dos.h Defines structs, unions, macros, and functions for dealing with MSDOS and the Intel iAPX86 microprocessor family.

Copyright (c) Borland International 1987,1988
All Rights Reserved.
*/
#if __STDC__
#define _Cdecl
#else
#define _Cdecl cdecl
#endif

#if     !defined(__DOS_DEF_)
#define __DOS_DEF_

/* Variables */
extern int _Cdecl _8087;
extern int _Cdecl _argc;
extern char      **_Cdecl _argv;
extern char      **_Cdecl  environ;
extern int _Cdecl _doserrno;
extern unsigned _Cdecl _heaplen;
extern unsigned char _Cdecl _osmajor;
extern unsigned char _Cdecl _osminor;
extern unsigned _Cdecl _psp;
extern unsigned _Cdecl _stklen;
extern unsigned _Cdecl _version;

#define FA_RDONLY 0x01 /* Read only attribute */
#define FA_HIDDEN 0x02 /* Hidden file */
#define FA_SYSTEM 0x04 /* System file */
#define FA_LABEL 0x08 /* Volume label */
#define FA_DIREC 0x10 /* Directory */
#define FA_ARCH 0x20 /* Archive */

#define NFDS 20 /* Maximum number of fds */

struct fcb {
char fcb_drive; /* 0 = default, 1 = A, 2 = B */
char fcb_name[8]; /* File name */
char fcb_ext[3]; /* File extension */
short fcb_curblk; /* Current block number */
short fcb_recsize; /* Logical record size in bytes */
long fcb_filsize; /* File size in bytes */
short fcb_date; /* Date file was last written */
char fcb_resv[10]; /* Reserved for DOS */
char fcb_currec; /* Current record in block */
long fcb_random; /* Random record number */
};

struct xfcb {
char xfcb_flag; /* Contains 0xff to indicate xfcb */
char xfcb_resv[5]; /* Reserved for DOS */
char xfcb_attr; /* Search attribute */
struct fcb xfcb_fcb; /* The standard fcb */
};

struct country {
int co_date;
char co_curr[5];
char co_thsep[2];
char co_desep[2];
char co_dtsep[2];
char co_tmsep[2];
char co_currstyle;
char co_digits;
char co_time;
long co_case;
char co_dasep[2];
char co_fill[10];
};

struct DOSERROR {
int exterror;
char class;
char action;
char locus;
};

struct dfree {
unsigned df_avail;
unsigned df_total;
unsigned df_bsec;
unsigned df_sclus;
};

struct fatinfo {
char fi_sclus;
char fi_fatid;
int fi_nclus;
int fi_bysec;
};

struct devhdr {
long dh_next; /* Next device pointer */
short dh_attr; /* Attributes */
unsigned short dh_strat; /* Driver strategy routine */
unsigned short dh_inter; /* Driver interrupt routine */
char dh_name[8]; /* Device name */
};

struct time {
unsigned char ti_min; /* Minutes */
unsigned char ti_hour; /* Hours */
unsigned char ti_hund; /* Hundredths of seconds */
unsigned char ti_sec; /* Seconds */
};

struct date {
int da_year; /* Year - 1980 */
char da_day; /* Day of the month */
char da_mon; /* Month (1 = Jan) */
};

struct WORDREGS {
unsigned int ax, bx, cx, dx, si, di, cflag, flags;
};

struct BYTEREGS {
unsigned char al, ah, bl, bh, cl, ch, dl, dh;
};

union REGS {
struct WORDREGS x;
struct BYTEREGS h;
};

struct SREGS {
unsigned int es;
unsigned int cs;
unsigned int ss;
unsigned int ds;
};

struct REGPACK {
unsigned r_ax, r_bx, r_cx, r_dx;
unsigned r_bp, r_si, r_di, r_ds, r_es, r_flags;
};

#define FP_OFF(fp) ((unsigned)(fp))
#define FP_SEG(fp) ((unsigned)((unsigned long)(fp) >> 16))


typedef struct {
char drive; /* do not change */
char pattern [13]; /*  these fields, */
char reserved [7]; /*   Microsoft reserved */
char attrib;
short time;
short date;
long size;
char nameZ [13]; /* result of the search, asciiz */
} dosSearchInfo; /* used with DOS functions 4E, 4F */


int _Cdecl absread (int drive, int nsects, int lsect, void *buffer);
int _Cdecl abswrite(int drive, int nsects, int lsect, void *buffer);
int _Cdecl allocmem(unsigned size, unsigned *segp);
int _Cdecl bdos (int dosfun, unsigned dosdx, unsigned dosal);
int _Cdecl bdosptr (int dosfun, void *argument, unsigned dosal);
struct country *_Cdecl country (int xcode, struct country *cp);
void _Cdecl ctrlbrk (int _Cdecl (*handler)(void));
void _Cdecl delay (unsigned milliseconds);
void _Cdecl disable (void);
int _Cdecl dosexterr (struct DOSERROR *eblkp);
long _Cdecl dostounix (struct date *d, struct time *t);
void          __emit__();
void _Cdecl enable (void);
int _Cdecl freemem (unsigned segx);
int _Cdecl getcbrk (void);
void _Cdecl getdate (struct date *datep);
void _Cdecl getdfree(unsigned char drive, struct dfree *dtable);
void _Cdecl getfat (unsigned char drive, struct fatinfo *dtable);
void _Cdecl getfatd (struct fatinfo *dtable);
unsigned _Cdecl getpsp (void);
int _Cdecl getswitchar (void);
void _Cdecl gettime (struct time *timep);
void interrupt (* _Cdecl getvect(int interruptno)) ();
int _Cdecl getverify (void);
void _Cdecl harderr (int _Cdecl (*handler)());
void _Cdecl hardresume (int axret);
void _Cdecl hardretn(int retn);
int _Cdecl inport (int portid);
unsigned char _Cdecl inportb(int portid);
int _Cdecl int86 (int intno, union REGS *inregs, union REGS *outregs);
int _Cdecl int86x (int intno, union REGS *inregs, union REGS *outregs,
struct SREGS *segregs);
int _Cdecl intdos (union REGS *inregs, union REGS *outregs);
int _Cdecl intdosx (union REGS *inregs, union REGS *outregs,
struct SREGS *segregs);
void _Cdecl intr (int intno, struct REGPACK *preg);
void _Cdecl keep (unsigned char status, unsigned size);
void _Cdecl nosound (void);
void _Cdecl outport (int portid, int value);
void _Cdecl outportb(int portid, unsigned char value);
char *_Cdecl parsfnm (const char *cmdline, struct fcb *fcb, int opt);
int _Cdecl peek (unsigned segment, unsigned offset);
char _Cdecl peekb (unsigned segment, unsigned offset);
void _Cdecl poke (unsigned segment, unsigned offset, int value);
void _Cdecl pokeb (unsigned segment, unsigned offset, char value);
int _Cdecl randbrd (struct fcb *fcb, int rcnt);
int _Cdecl randbwr (struct fcb *fcb, int rcnt);
void _Cdecl segread (struct SREGS *segp);
int _Cdecl setblock(unsigned segx, unsigned newsize);
int _Cdecl setcbrk (int cbrkvalue);
void _Cdecl setdate (struct date *datep);
void _Cdecl setswitchar (char ch);
void _Cdecl settime (struct time *timep);
void _Cdecl setvect (int interruptno, void interrupt (*isr) ());
void _Cdecl setverify (int value);
void _Cdecl sleep (unsigned seconds);
void _Cdecl sound (unsigned frequency);
void _Cdecl unixtodos (long time, struct date *d, struct time *t);
int _Cdecl unlink (const char *path);

/* These are in-line functions.  These prototypes just clean up
  some syntax checks and code generation.
*/

void _Cdecl __cli__ (void);
void _Cdecl __sti__ (void);
unsigned char _Cdecl __inportb__(int portid);
void _Cdecl __outportb__ (int portid, unsigned char value);
void _Cdecl __int__ (int interruptnum);

#define disable() __cli__() /* Clear interrupt flag */
#define enable() __sti__() /* Set interrupt flag */
#define inportb(portid) __inportb__(portid) /* Byte IN instruction */
#define outportb(portid, v) __outportb__(portid,v)/* Byte OUT instruction */
#define geninterrupt(i) __int__(i) /* Interrupt instruction */

/* some other compilers use inp, outp for inportb, outportb */
#define inp(portid) inportb(portid)
#define outp(portid,v) outportb(portid,v)

#if !__STDC__
char far *cdecl getdta(void);
void  cdecl setdta(char far *dta);

#define MK_FP(seg,ofs) ((void far *) \
  (((unsigned long)(seg) << 16) | (unsigned)(ofs)))

#define poke(a,b,c) (*((int  far*)MK_FP((a),(b))) = (int)(c))
#define pokeb(a,b,c) (*((char far*)MK_FP((a),(b))) = (char)(c))
#define peek(a,b) (*((int  far*)MK_FP((a),(b))))
#define peekb(a,b) (*((char far*)MK_FP((a),(b))))
#endif

#endif

dir.h Defines structures, macros, and functions for dealing with directories and pathnames.

Copyright (c) Borland International 1987,1988
All Rights Reserved.
*/
#if __STDC__
#define _Cdecl
#else
#define _Cdecl cdecl
#endif

#if     !defined(__DIR_DEF_)
#define __DIR_DEF_

struct ffblk {
char ff_reserved[21];
char ff_attrib;
unsigned ff_ftime;
unsigned ff_fdate;
long ff_fsize;
char ff_name[13];
};

#define WILDCARDS 0x01
#define EXTENSION 0x02
#define FILENAME  0x04
#define DIRECTORY 0x08
#define DRIVE  0x10

#define MAXPATH   80
#define MAXDRIVE  3
#define MAXDIR  66
#define MAXFILE   9
#define MAXEXT  5

int _Cdecl chdir (const char *path);
int _Cdecl findfirst (const char *path, struct ffblk *ffblk,
int attrib);
int _Cdecl findnext (struct ffblk *ffblk);
void _Cdecl fnmerge (char *path,const char *drive,const char *dir,
const char *name, const char *ext);
int _Cdecl fnsplit (const char *path, char *drive, char *dir,
char *name, char *ext);
int _Cdecl getcurdir (int drive, char *directory);
char *_Cdecl getcwd (char *buf, int buflen);
int _Cdecl getdisk (void);
int _Cdecl mkdir (const char *path);
char *_Cdecl mktemp (char *template);
int _Cdecl rmdir (const char *path);
char *_Cdecl searchpath (const char *file);
int _Cdecl setdisk (int drive);

#endif

ctype.h Defines the ctype macros.

Copyright (c) Borland International 1987,1988
All Rights Reserved.
*/
#if __STDC__
#define _Cdecl
#else
#define _Cdecl cdecl
#endif

#define _IS_SP 1 /* is space */
#define _IS_DIG 2 /* is digit indicator */
#define _IS_UPP 4 /* is upper case */
#define _IS_LOW 8 /* is lower case */
#define _IS_HEX 16 /* [A-F or [a-f] */
#define _IS_CTL 32 /* Control */
#define _IS_PUN 64 /* punctuation */

extern char _Cdecl _ctype[]; /* Character type array */

#define isalnum(c) (_ctype[(c) + 1] & (_IS_DIG | _IS_UPP | _IS_LOW))
#define isalpha(c) (_ctype[(c) + 1] & (_IS_UPP | _IS_LOW))
#define isascii(c) ((unsigned)(c) < 128)
#define iscntrl(c) (_ctype[(c) + 1] & _IS_CTL)
#define isdigit(c) (_ctype[(c) + 1] & _IS_DIG)
#define isgraph(c) ((c) >= 0x21 && (c) <= 0x7e)
#define islower(c) (_ctype[(c) + 1] & _IS_LOW)
#define isprint(c) ((c) >= 0x20 && (c) <= 0x7e)
#define ispunct(c) (_ctype[(c) + 1] & _IS_PUN)
#define isspace(c) (_ctype[(c) + 1] & _IS_SP)
#define isupper(c) (_ctype[(c) + 1] & _IS_UPP)
#define isxdigit(c) (_ctype[(c) + 1] & (_IS_DIG | _IS_HEX))

#define _toupper(c) ((c) + 'A' - 'a')
#define _tolower(c) ((c) + 'a' - 'A')
#define toascii(c) ((c) & 0x7f)

int _Cdecl tolower(int ch);
int _Cdecl toupper(int ch);