ansicpp.h

二次最优化的C/C++源代码

#ifndef ANSICPP_H
#define ANSICPP_H

// (c) Petr Mikulik ([e-mail]) - 1994--1996
// Freeware version. It is distributed without any warranty.

#if defined(__EMX__)
  #define __OS2
  #define __os2
  #define __OS2__
#endif

#if !defined(__os2) && (defined(__os2__) || defined(__OS2__))
  #define __os2
#endif

#if defined(__DECCXX) && !defined(__STDC__)
  #define __STDC__
  // it is not defined on VMS, I'm wondering why...
#endif

#if defined(__MSDOS__) || defined(__OS2__)
  #define Petr "Petr Mikul\xA1k"
#else
  #define Petr "Petr Mikulik"
#endif

#if defined(__MSDOS__) || defined(__OS2__)
  // you can stop the calculation by the ESC key on PC
  #define HIT_ESC_RETURN if (kbhit()&&(getch()==0x1B)) return;
#else
  // do not define it elsewhere
  #define HIT_ESC_RETURN
#endif

// #define unsigned char byte
#define word int
#define TAB '\t'

// Some macros for tracing (note: see <checks.h> in BC)
#define OK cout << "LINE "<<__LINE__<<" is OK.\n" COUT_FLUSH;
#define PMTRACE(x) cerr<<"TRACing "<<__FILE__<<", "<<__LINE__<<": "<<x<<endl;
#define PMWARN(x)  cerr<<"WARNing "<<__FILE__<<", "<<__LINE__<<": "<<x<<endl;
#define PMCannotBeHere(text) cerr <<"Cannot be here! "<<__FILE__<<": "<<__LINE__<<" --- "<<text<<endl;


void NotMemory ();
void CannotBeHere ();
void CannotBeHereExit ( int code=99 );

extern int ansicpp_argc;
extern char **ansicpp_argv; 
  // access to the command line parameters
  // Usage: ansicpp_argc=argc; ansicpp_argv=argv;
  //   just after  int main ( int argc, char *argv[] ) 

#if defined(__TURBOC__) || defined(__WATCOMC__)
  // returns Path/Name of the executable file
  #define ExecName(Name,Sajz_t) strcpy(Name,ansicpp_argv[0])
#endif

#define ExecDir(Dir,Sajz_t,Slash) \
  ExecName(Dir,Sajz_t); PathOfFileName(Dir,Dir,Slash);
// returns directory where the exe file has been launched from

#ifdef __GNUC__
  // sure for gcc/emx
  #define ios_bin ios::bin
#else
  #ifdef __BORLANDC__
    // sure for Borland
    #define ios_bin ios::binary
  #else // and what about other compilers? Let us see...
    #define ios_bin ios::binary
  #endif
#endif

#if defined(__TURBOC__) && !defined(__STDC__)
  #define COUT_FLUSH
  #define CERR_FLUSH
  #define Protected protected
  #ifdef __OS2__
    #define popen _popen
    #define pclose _pclose
    #define far   // this became obsolete, DOS is dead:
    #define huge
  #endif
  #define WATCOM_RETURN0

#else
// You do not use Borland C++, use the rest of this file

#if defined(__WATCOMC__)
  #define popen _popen
  #define pclose _pclose
#endif

#define COUT_FLUSH << flush
#define CERR_FLUSH << flush

#ifdef __GNUC__
  // not implemented till 2.7.2
  #define Protected public
#else
  #define Protected protected
#endif

#ifdef __WATCOMC__
  // Watcom C needs sth to be return even the exit(int) is called at the end 
  // of a function, like   int sum ( int a ) { exit(1); WATCOM_RETURN0 }
  #define WATCOM_RETURN0 return 0;
#else
  #define WATCOM_RETURN0
#endif

#if 0
/*  Not needed anymore, use  fileno(FILE*) instead
// C to C++ conversion: handles name
#if defined(__EMX__)
  #define Handle handle
#elif defined(__BORLANDC__)
  #define Handle fd
#else
  // Unix: either below, or open /dev/fdn, where n is handle number
  // The next is valid at least for gcc on SGI
  #define Handle _file
#endif
*/
#endif

#include <math.h>
#include <float.h>

#define far
#define huge

// maybe in ANSI C++ and certainly in DEC C++ compiler on VMS VAXstation
#ifndef M_E
#define M_E         2.71828182845904523536
#endif
#ifndef M_LOG2E
#define M_LOG2E     1.44269504088896340736
#endif
#ifndef M_LOG10E
#define M_LOG10E    0.434294481903251827651
#endif
#ifndef M_LN2
#define M_LN2       0.693147180559945309417
#endif
#ifndef M_LN10
#define M_LN10      2.30258509299404568402
#endif
#ifndef M_PI
#define M_PI        3.14159265358979323846
#endif
#ifndef M_PI_2
#define M_PI_2      1.57079632679489661923
#endif
#ifndef M_PI_4
#define M_PI_4      0.785398163397448309616
#endif
#ifndef M_1_PI
#define M_1_PI      0.318309886183790671538
#endif
#ifndef M_2_PI
#define M_2_PI      0.636619772367581343076
#endif
#ifndef M_1_SQRTPI
#define M_1_SQRTPI  0.564189583547756286948
#endif
#ifndef M_2_SQRTPI
#define M_2_SQRTPI  1.12837916709551257390
#endif
#ifndef M_SQRT2
#define M_SQRT2     1.41421356237309504880
#endif
#ifndef M_SQRT_2
#define M_SQRT_2    0.707106781186547524401
#endif

#if !defined(__WATCOMC__) && !defined(__EMX__)
  // undefined by ANSI compilers. Surely: GCC 2.7.2/Linux; probably VMS
  char *strupr( char *s );
  char *strlwr( char *s );
#endif

#if (defined(__GNUC__) && defined(__MSDOS__))
   #include <conio.h> // these are in <pc.h> file (DJGPP) or <conio.h>
   // #define getch getkey
   // #define getche getkey
#elif defined(__EMX__)
  #include <conio.h>
  // #define getch()   _read_kbd (0, 1, 0)
  // #define getche()  _read_kbd (1, 1, 0)
  #define kbhit()  (_read_kbd (0,0,0)!=-1)  // from <stdlib.h>
#else
  int getch ( void );
  int getche ( void );
  int kbhit ( void );
#endif

#if defined(__EMX__)
  #define ExecName(Name,Sajz_t) _execname(Name,Sajz_t)
#else
  #define ExecName(Name,Sajz_t) strcpy(Name,ansicpp_argv[0])
#endif

#if defined(__unix) || defined(__VMS)
  #define stricmp strcasecmp	# at least Linux with gcc 2.7.2, and DEC CXX
#endif

#endif // option for the rest of this file

#endif

// eof ansicpp.h