From: jason@cs.ucla.edu (Jason Rosenberg)
Subject: g++ bug report: fatal signal 6
Organization: GNUs Not Usenet
Distribution: gnu
Date: Tue, 25 Aug 1992 21:55:28 GMT

Hello,

I have run into a fatal compiler error, using g++ 2.2.2.  I have incuded
below all the pertinent info: (1) a script of the session in which the
compiler crashes, (2) a script of the session using the -v and -E option,
(3) the output file from the -E compilation, (4) the text of the include
file "file.h" and (5) the text of the source file "file.cc".

Please note that the code is a relatively ugly state, as I was in the middle
of trying something when the fatal signal appeared.  I am reporting the bug
now, since I know that any fatal signal is probably worth investigating.
So, I don't even expect most of my code to actually work or be correctly
integrated, and have fun stepping around the commented out sections.....

I really don't have too much personal speculation as to what could be
the problem.  My development environment has been pretty stable.  However,
what I have been working on most recently has been to convert my old C
i/o routines to more c++-like routines using things like ostream and filebuf.

Please let me know if you receive this ok, and whether there is anything
further I can provide.  Also, keep me up to date on what you find out if you
investigate things.  Thanks.

Below I have separated the 5 files outlined above with a line of "****...****"
with the description in between.

Jason Rosenberg (jason@cs.ucla.edu)

**************************script of session in which compiler crashes**********

jason(1) g++ -g -c file.cc
cp-method.c:2531: failed assertion `TREE_CODE (value) == VAR_DECL || TREE_CODE (value) == PARM_DECL'
/usr/local/bin/gcc: Internal compiler error: program cc1plus got fatal signal 6

**************************script of session using -v and -E flags**************

jason(2) g++ -v -E -g -c file.cc > compiler.out
Reading specs from /usr/local/lib/gcc-lib/sparc-sun-sunos4.1.1/2.2.2/specs
gcc version 2.2.2
 /usr/local/lib/gcc-lib/sparc-sun-sunos4.1.1/2.2.2/cpp -lang-c++ -v -undef -D__GNUC__=2 -D__GNUG__=2 -D__cplusplus -Dsparc -Dsun -Dunix -D__sparc__ -D__sun__ -D__unix__ -D__sparc -D__sun -D__unix -g file.cc
GNU CPP version 2.2.2 (sparc)

**************************compiler.out (-E output)*****************************

# 1 "file.cc"
# 1 "/usr/local/lib/g++-include/stdio.h" 1 3
 
 


















#pragma interface







 
 
 

# 1 "/usr/local/lib/g++-include/_G_config.h" 1 3
  





















 












 





 
 

# 33 "/usr/local/lib/g++-include/stdio.h" 2 3


extern "C" {

































# 1 "/usr/local/lib/gcc-lib/sparc-sun-sunos4.1.1/2.2.2/include/stdio.h" 1 3
 




extern	struct	_iobuf {
	int	_cnt;
	unsigned char *_ptr;
	unsigned char *_base;
	int	_bufsiz;
	short	_flag;
	char	_file;		 
} _iob[];








































extern struct _iobuf 	*__hide_fopen ();
extern struct _iobuf 	*__hide_fdopen ();
extern struct _iobuf 	*__hide_freopen ();
extern struct _iobuf 	*__hide_popen ();
extern struct _iobuf 	*tmpfile();
extern long	__hide_ftell ();
extern char	*fgets();
extern char	*gets();
extern char	*__hide_sprintf ();
extern char	*ctermid();
extern char	*cuserid();
extern char	*__hide_tempnam ();
extern char	*tmpnam();






# 69 "/usr/local/lib/g++-include/stdio.h" 2 3







































}

extern "C" {

int    fclose(struct _iobuf *);
struct _iobuf *  fdopen(int, const char*);
int    fflush(struct _iobuf *);
int    fgetc(struct _iobuf *);
char*  fgets(char*, int, struct _iobuf  *);
struct _iobuf *  fopen(const char*, const char*);
int    fprintf(struct _iobuf *, const char* ...);
int    fputc(int, struct _iobuf *);
int    fputs(const char*, struct _iobuf *);
int   fread(void*, int  , int  , struct _iobuf *);



struct _iobuf *  freopen(const char*, const char*, struct _iobuf *);

int    fscanf(struct _iobuf *, const char* ...);
int    fseek(struct _iobuf *, long, int);
long   ftell(struct _iobuf  *);
int   fwrite(const void*, int  , int  , struct _iobuf *);
char*  gets(char*);
int    getw(struct _iobuf *);
int    pclose(struct _iobuf *);
void   perror(const char*);
struct _iobuf *  popen(const char*, const char*);
int    printf(const char* ...);
int    puts(const char*);
int    putw(int, struct _iobuf *);
int    rewind(struct _iobuf *);
int    scanf(const char* ...);
void   setbuf(struct _iobuf *, char*);
void   setbuffer(struct _iobuf *, char*, int);
int    setlinebuf(struct _iobuf *);
int    setvbuf(struct _iobuf *, char*, int, int  );
int    sscanf(char*, const char* ...);
struct _iobuf *  tmpfile();
int    ungetc(int, struct _iobuf *);
int    vfprintf (...) ;
int    vprintf (...) ;
char*  sprintf (...) ;
char*  vsprintf (...) ;

extern int _filbuf (...) ;
extern int _flsbuf (...) ;

}


















# 1 "file.cc" 2

# 1 "/usr/local/lib/g++-include/stream.h" 1 3



 


# 1 "/usr/local/lib/g++-include/iostream.h" 1 3
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 



#pragma interface




# 1 "/usr/local/lib/g++-include/streambuf.h" 1 3
 
 
 
 
 
 
 
 
 
 
 
 
 
 





#pragma interface

















class ostream; class streambuf; class backupbuf;





extern "C" int __underflow(streambuf*);
extern "C" int __overflow(streambuf*, int);

typedef long  streamoff;
typedef long  streampos;  

typedef unsigned long __fmtflags;
typedef unsigned char __iostate;

struct _ios_fields {  
    streambuf *_strbuf;
    ostream* _tie;
    int _width;
    __fmtflags _flags;
    char _fill;
    __iostate _state;
    unsigned short _precision;
};















enum state_value {
    _good = 0 ,
    _eof = 1 ,
    _fail = 2 ,
    _bad = 4  };
enum open_mode {
    input = 1 ,
    output = 2 ,
    atend = 4 ,
    append = 8  };


class ios : public _ios_fields {
  public:
    typedef __fmtflags fmtflags;
    typedef __iostate iostate;
    enum io_state {
	goodbit = 0 ,
	eofbit = 1 ,
	failbit = 2 ,
	badbit = 4  };
    enum open_mode {
	in = 1 ,
	out = 2 ,
	ate = 4 ,
	app = 8 ,
	trunc = 16 ,
	nocreate = 32 ,
	noreplace = 64  };
    enum seek_dir { beg, cur, end};
    enum { skipws=01, left=02, right=04, internal=010,
	   dec=020, oct=040, hex=0100,
	   showbase=0200, showpoint=0400, uppercase=01000, showpos=02000,
	   scientific=04000, fixed=0100000, unitbuf=020000, stdio=040000,
	   dont_close=0x80000000  
	   };

    ostream* tie() const { return _tie; }
    ostream* tie(ostream* val) { ostream* save=_tie; _tie=val; return save; }

     
    char fill() const { return _fill; }
    char fill(char newf) { char oldf = _fill; _fill = newf; return oldf; }
    fmtflags flags() const { return _flags; }
    fmtflags flags(fmtflags new_val) {
	fmtflags old_val = _flags; _flags = new_val; return old_val; }
    int precision() const { return _precision; }
    int precision(int newp) {
	unsigned short oldp = _precision; _precision = (unsigned short)newp;
	return oldp; }
    fmtflags setf(fmtflags val) {
	fmtflags oldbits = _flags;
	_flags |= val; return oldbits; }
    fmtflags setf(fmtflags val, fmtflags mask) {
	fmtflags oldbits = _flags;
	_flags = (_flags & ~mask) | (val & mask); return oldbits; }
    fmtflags unsetf(fmtflags mask) {
	fmtflags oldbits = _flags & mask;
	_flags &= ~mask; return oldbits; }
    int width() const { return _width; }
    int width(int val) { int save = _width; _width = val; return save; }

    static const unsigned long basefield;
    static const unsigned long adjustfield;
    static const unsigned long floatfield;

    streambuf* rdbuf() const { return _strbuf; }
    void clear(iostate state = 0) { _state = state; }
    void set(iostate flag) { _state |= flag; }  
    int good() const { return _state == 0; }
    int eof() const { return _state & ios::eofbit; }
    int fail() const { return _state & (ios::badbit|ios::failbit); }
    int bad() const { return _state & ios::badbit; }
    int rdstate() const { return _state; }
    operator void*() const { return fail() ? (void*)0 : (void*)(-1); }
    int operator!() const { return fail(); }


    void unset(state_value flag) { _state &= ~flag; }
    void close();
    int is_open();
    int readable();
    int writable();


  protected:
    ios(streambuf* sb = 0, ostream* tie = 0);
    ~ios();
};




typedef ios::seek_dir _seek_dir;


 
 
 
 
 



















 
 
class streammarker {
    friend class streambuf;



    friend int __underflow(streambuf*);

    struct streammarker *_next;   
    streambuf *_sbuf;  
    streampos _spos;  
    void set_streampos(streampos sp) { _spos = sp; }
    void set_offset(int offset) { _pos = offset; _spos = (streampos)(-2); }
     
     
    int _pos;
  public:
    streammarker(streambuf *sb);
    ~streammarker();
    int saving() { return  _spos == -2; }
    int delta(streammarker&);
    int delta();
};

struct __streambuf {
     
    int _flags;		 
    char* _gptr;	 
    char* _egptr;	 
    char* _eback;	 
    char* _pbase;	 
    char* _pptr;	 
    char* _epptr;	 
    char* _base;	 
    char* _ebuf;	 
    struct streambuf *_chain;

     
    friend class streammarker;
    char *_other_gbase;  
    char *_aux_limit;   
    char *_other_egptr;  
    streammarker *_markers;


     
    unsigned short _cur_column;
    char _unused;
    char _shortbuf[1];
};

extern unsigned __adjust_column(unsigned start, const char *line, int count);

struct streambuf : private __streambuf {
    friend class ios;
    friend class istream;
    friend class ostream;
    friend class streammarker;



    friend int __underflow(streambuf*);

  protected:
    static streambuf* _list_all;  
    streambuf*& xchain() { return _chain; }
    void _un_link();
    void _link_in();
    char* gptr() const { return _gptr; }
    char* pptr() const { return _pptr; }
    char* egptr() const { return _egptr; }
    char* epptr() const { return _epptr; }
    char* pbase() const { return _pbase; }
    char* eback() const { return _eback; }
    char* ebuf() const { return _ebuf; }
    char* base() const { return _base; }
    void xput_char(char c) { *_pptr++ = c; }
    int xflags() { return _flags; }
    int xflags(int f) { int fl = _flags; _flags = f; return fl; }
    void xsetflags(int f) { _flags |= f; }
    void xsetflags(int f, int mask) { _flags = (_flags & ~mask) | (f & mask); }
    void gbump(int n) { _gptr += n; }
    void pbump(int n) { _pptr += n; }
    void setb(char* b, char* eb, int a=0);
    void setp(char* p, char* ep) { _pbase=_pptr=p; _epptr=ep; }
    void setg(char* eb, char* g, char *eg) { _eback=eb; _gptr=g; _egptr=eg; }
    char *shortbuf() { return _shortbuf; }

    int in_backup() { return _flags & 0x100 ; }
     
    char *Gbase() { return in_backup() ? _other_gbase : _eback; }
     
    char *eGptr() { return in_backup() ? _other_egptr : _egptr; }
     
    char *Bbase() { return in_backup() ? _eback : _other_gbase; }
    char *Bptr() { return _aux_limit; }
     
    char *eBptr() { return in_backup() ? _egptr : _other_egptr; }
    char *Nbase() { return _other_gbase; }
    char *eNptr() { return _other_egptr; }
    int have_backup() { return _other_gbase != 0 ; }
    int have_markers() { return _markers != 0 ; }
    int _least_marker();
    void switch_to_main_get_area();
    void switch_to_backup_area();
    void free_backup_area();
    void unsave_markers();  
    int put_mode() { return _flags & 0x800 ; }
    int switch_to_get_mode();
    
    streambuf(int flags=0);
  public:
    static int flush_all();
    static void flush_all_linebuffered();  
    virtual int underflow() = 0;  
    virtual int overflow(int c = (-1) ) = 0;  
    virtual int doallocate();
    virtual streampos seekoff(streamoff, _seek_dir, int mode=ios::in|ios::out);
    virtual streampos seekpos(streampos pos, int mode = ios::in|ios::out);
    int seekmark(streammarker& mark, int delta = 0);
    int sputbackc(char c);
    int sungetc();
    virtual ~streambuf();
    int unbuffered() { return _flags & 2  ? 1 : 0; }
    int linebuffered() { return _flags & 0x200  ? 1 : 0; }
    void unbuffered(int i)
	{ if (i) _flags |= 2 ; else _flags &= ~2 ; }
    void linebuffered(int i)
	{ if (i) _flags |= 0x200 ; else _flags &= ~0x200 ; }
    int allocate() {  
	if (base() || unbuffered()) return 0;
	else return doallocate(); }
     
    void allocbuf() { if (base() == 0 ) doallocbuf(); }
    void doallocbuf();
    virtual int sync();
    virtual int pbackfail(int c);
    virtual int ungetfail();
    virtual streambuf* setbuf(char* p, int len);
    int in_avail() { return _egptr - _gptr; }
    int out_waiting() { return _pptr - _pbase; }
    virtual int sputn(const char* s, int n);
    int padn(char pad, int n);  
    virtual int sgetn(char* s, int n);
    int ignore(int);
    virtual int get_column();
    virtual int set_column(int);
    long sgetline(char* buf, int  n, char delim, int putback_delim);
    int sbumpc() {
	if (_gptr >= _egptr && __underflow(this) == (-1) ) return (-1) ;
	else return *(unsigned char*)_gptr++; }
    int sgetc() {
	if (_gptr >= _egptr && __underflow(this) == (-1) ) return (-1) ;
	else return *(unsigned char*)_gptr; }
    int snextc() {
	if (++_gptr >= _egptr && __underflow(this) == (-1) ) return (-1) ;
	else return *(unsigned char*)_gptr; }
    int sputc(int c) {
	if (_pptr >= _epptr) return __overflow(this, (unsigned char)c);
	return *_pptr++ = c, (unsigned char)c; }
    void stossc() { if (_gptr < _egptr) _gptr++; }
    int vscan(char const *fmt0, char *  ap, ios::iostate* = 0 );
    int vform(char const *fmt0, char *  ap);




};

 
 

 
 
 
 

class backupbuf : public streambuf {
    friend class streammarker;
  protected:
    backupbuf(int flags=0) : streambuf(flags|0x4000 ) { }
  public:
    virtual int pbackfail(int c);
    virtual int underflow();
    virtual int overflow(int c = (-1) );
};

struct __file_fields {
    short _fileno;
    int _blksize;
    long   _offset;
 
};

class filebuf : public backupbuf {
  protected:
    struct __file_fields _fb;
    void init();
  public:
    filebuf();
    filebuf(int fd);
    filebuf(int fd, char* p, int len);
    ~filebuf();
    filebuf* attach(int fd);
    filebuf* open(const char *filename, const char *mode);
    filebuf* open(const char *filename, int mode, int prot = 0664);
    virtual int underflow();
    virtual int overflow(int c = (-1) );
    int is_open() { return _fb._fileno >= 0; }
    int fd() { return is_open() ? _fb._fileno : (-1) ; }
    filebuf* close();
    virtual int doallocate();
    virtual streampos seekoff(streamoff, _seek_dir, int mode=ios::in|ios::out);
    int sputn(const char* s, int n);
    int sgetn(char* s, int n);
    virtual int sync();
  protected:  
 
    int is_reading() { return eback() != egptr(); }
    char* cur_ptr() { return is_reading() ?  gptr() : pptr(); }
     
    char* file_ptr() { return eGptr(); }
    int do_write(const char *data, int to_do);
    int do_flush() { return do_write(_pbase, _pptr-_pbase); }
     
    virtual int  sys_read(char* buf, int  size);
    virtual long   sys_seek(long  , _seek_dir);
    virtual int  sys_write(const void*, long);
    virtual int sys_stat(void*);  
    virtual int sys_close();
};


inline int ios::readable() { return !(rdbuf()->_flags & 4 ); }
inline int ios::writable() { return !(rdbuf()->_flags & 8 ); }
inline int ios::is_open() { return (rdbuf()->_flags & 4 +8 )
				!= 4 +8 ; }

inline ios::ios(streambuf* sb  , ostream* tie  ) {
		_tie = tie; _strbuf=sb; _state=0; _width=0; _fill=' ';
		_flags=ios::skipws; _precision=6; }
inline ios::~ios() {
    if (!(_flags & (unsigned int)ios::dont_close)) delete _strbuf; }


# 25 "/usr/local/lib/g++-include/iostream.h" 2 3


class istream; class ostream;
typedef ios& (*__manip)(ios&);
typedef istream& (*__imanip)(istream&);
typedef ostream& (*__omanip)(ostream&);

extern istream& ws(istream& ins);
extern ostream& flush(ostream& outs);
extern ostream& endl(ostream& outs);
extern ostream& ends(ostream& outs);

class ostream : public ios
{
    void do_osfx();
  public:
    ostream() { }
    ostream(streambuf* sb, ostream* tied=0 );
    int opfx() { if (!good()) return 0; if (_tie) _tie->flush(); return 1; }
    void osfx() { if (flags() & (ios::unitbuf|ios::stdio))
		      do_osfx(); }
    streambuf* ostreambuf() const { return _strbuf; }
    ostream& flush();
    ostream& put(char c) { _strbuf->sputc(c); return *this; }

    ostream& write(const char *s, int n);
    ostream& write(const unsigned char *s, int n) { return write((const char*)s, n);}

    ostream& write(const signed char *s, int n) { return write((const char*)s, n);}

    ostream& write(const void *s, int n) { return write((const char*)s, n);}
    ostream& seekp(streampos);
    ostream& seekp(streamoff, _seek_dir);
    streampos tellp();
    ostream& form(const char *format ...);
    ostream& vform(const char *format, char *  args);
};

extern ostream& operator<<(ostream&, char c);
inline ostream& operator<<(ostream& os, unsigned char c)
{ return os << (char)c; }

extern ostream& operator<<(ostream &os, signed char c) { return os << (char)c;}

extern ostream& operator<<(ostream&, const char *s);
inline ostream& operator<<(ostream& os, const unsigned char *s)
{ return os << (const char*)s; }

inline ostream& operator<<(ostream& os, const signed char *s)
{ return os << (const char*)s; }

extern ostream& operator<<(ostream&, void *p);
extern ostream& operator<<(ostream&, int n);
extern ostream& operator<<(ostream&, long n);
extern ostream& operator<<(ostream&, unsigned int n);
extern ostream& operator<<(ostream&, unsigned long n);
inline ostream& operator<<(ostream& os, short n) {return os << (int)n;}
inline ostream& operator<<(ostream& os, unsigned short n)
{return os << (unsigned int)n;}
extern ostream& operator<<(ostream&, float n);
extern ostream& operator<<(ostream&, double n);
inline ostream& operator<<(ostream& os, __omanip func) { return (*func)(os); }
inline ostream& operator<<(ostream& os, __manip func) {(*func)(os); return os;}
extern ostream& operator<<(ostream&, streambuf*);

class istream : public ios
{
    int  _gcount;

    int _skip_ws();
  public:
    istream() { _gcount = 0; }
    istream(streambuf* sb, ostream*tied=0 );
    streambuf* istreambuf() const { return _strbuf; }
    istream& get(char& c);
    istream& get(unsigned char& c) { return get((char&)c); }

    istream& get(signed char& c)  { return get((char&)c); }

    istream& read(char *ptr, int n);
    istream& read(unsigned char *ptr, int n) { return read((char*)ptr, n); }

    istream& read(signed char *ptr, int n) { return read((char*)ptr, n); }

    istream& read(void *ptr, int n) { return read((char*)ptr, n); }
     
    istream& getline(char* ptr, int len, char delim = '\n');
    istream& get(char* ptr, int len, char delim = '\n');
    istream& get(streambuf& sb, char delim = '\n');
    istream& gets(char **s, char delim = '\n');
    int ipfx(int need) {
	if (!good()) { set(ios::failbit); return 0; }
	if (_tie && (need == 0 || rdbuf()->in_avail() < need)) _tie->flush();
	if (!need && (flags() & ios::skipws)) return _skip_ws();
	return 1;
    }
    int ipfx0() {  
	if (!good()) { set(ios::failbit); return 0; }
	if (_tie) _tie->flush();
	if (flags() & ios::skipws) return _skip_ws();
	return 1;
    }
    int ipfx1() {  
	if (!good()) { set(ios::failbit); return 0; }
	if (_tie && rdbuf()->in_avail() == 0) _tie->flush();
	return 1;
    }
    int get() { if (!ipfx1()) return (-1) ;
		int ch = _strbuf->sbumpc();
		if (ch == (-1) ) set(ios::eofbit);
		return ch; }
    int peek() { if (!ipfx1()) return (-1) ;
		int ch = _strbuf->sgetc();
		if (ch == (-1) ) set(ios::eofbit);
		return ch; }
    int  gcount() { return _gcount; }
    istream& ignore(int n=1, int delim = (-1) );
    istream& seekg(streampos);
    istream& seekg(streamoff, _seek_dir);
    streampos tellg();
    istream& putback(char ch) {
	if (good() && _strbuf->sputbackc(ch) == (-1) ) clear(ios::badbit);
	return *this;}
    istream& unget() {
	if (good() && _strbuf->sungetc() == (-1) ) clear(ios::badbit);
	return *this;}
    istream& scan(const char *format ...);
    istream& vscan(const char *format, char *  args);

    istream& unget(char ch) { return putback(ch); }
    int skip(int i);

};

extern istream& operator>>(istream&, char*);
inline istream& operator>>(istream& is, unsigned char* p)
{ return is >> (char*)p; }

inline istream& operator>>(istream& is, signed char*p) {return is >> (char*)p;}

extern istream& operator>>(istream&, char& c);
extern istream& operator>>(istream& s, unsigned char& c) {return s>>(char&)c;}

extern istream& operator>>(istream& s, signed char& c) {return s >> (char&)c;}

extern istream& operator>>(istream&, int&);
extern istream& operator>>(istream&, long&);
extern istream& operator>>(istream&, short&);
extern istream& operator>>(istream&, unsigned int&);
extern istream& operator>>(istream&, unsigned long&);
extern istream& operator>>(istream&, unsigned short&);
extern istream& operator>>(istream&, float&);
extern istream& operator>>(istream&, double&);
inline istream& operator>>(istream& is, __manip func) {(*func)(is); return is;}
inline istream& operator>>(istream& is, __imanip func) { return (*func)(is); }
extern istream& operator>>(istream&, streambuf*);

class iostream : public ios {
    int  _gcount;
  public:
    iostream() { _gcount = 0; }
    iostream(streambuf* sb, ostream*tied=0 );
    operator istream&() { return *(istream*)this; }
    operator ostream&() { return *(ostream*)this; }
     
    istream& get(char& c) { return ((istream*)this)->get(c); }
    istream& get(unsigned char& c) { return ((istream*)this)->get((char&)c); }

    istream& get(signed char& c) { return ((istream*)this)->get((char&)c); }

    istream& read(char *ptr, int n) { return ((istream*)this)->read(ptr, n); }
    istream& read(unsigned char *ptr, int n)
	{ return ((istream*)this)->read((char*)ptr, n); }

    istream& read(signed char *ptr, int n)
	{ return ((istream*)this)->read((char*)ptr, n); }

    istream& read(void *ptr, int n)
	{ return ((istream*)this)->read((char*)ptr, n); }
    istream& getline(char* ptr, int len, char delim = '\n')
	{ return ((istream*)this)->getline(ptr, len, delim); }
    istream& get(char* ptr, int len, char delim = '\n')
	{ return ((istream*)this)->get(ptr, len, delim); }
    istream& gets(char **s, char delim = '\n')
	{ return ((istream*)this)->gets(s, delim); }
    istream& ignore(int n=1, int delim = (-1) )
	{ return ((istream*)this)->ignore(n, delim); }
    int ipfx(int need) { return ((istream*)this)->ipfx(need); }
    int ipfx0()  { return ((istream*)this)->ipfx0(); }
    int ipfx1()  { return ((istream*)this)->ipfx1(); }
    int get() { return _strbuf->sbumpc(); }
    int peek() { return ipfx1() ? _strbuf->sgetc() : (-1) ; }
    int  gcount() { return _gcount; }
    istream& putback(char ch) { return ((istream*)this)->putback(ch); }
    istream& unget() { return ((istream*)this)->unget(); }
    istream& seekg(streampos pos) { return ((istream*)this)->seekg(pos); }
    istream& seekg(streamoff off, _seek_dir dir)
	{ return ((istream*)this)->seekg(off, dir); }
    streampos tellg() { return ((istream*)this)->tellg(); }
    istream& scan(const char *format ...);
    istream& vscan(const char *format, char *  args)
	{ return ((istream*)this)->vscan(format, args); }

    istream& unget(char ch) { return putback(ch); }


     
    int opfx() { return ((ostream*)this)->opfx(); }
    void osfx() { ((ostream*)this)->osfx(); }
    ostream& flush() { return ((ostream*)this)->flush(); }
    ostream& put(char c) { return ((ostream*)this)->put(c); }
    ostream& write(const char *s, int n)
	{ return ((ostream*)this)->write(s, n); }
    ostream& write(const unsigned char *s, int n)
	{ return ((ostream*)this)->write((const char*)s, n); }

    ostream& write(const signed char *s, int n)
	{ return ((ostream*)this)->write((const char*)s, n); }

    ostream& write(const void *s, int n)
	{ return ((ostream*)this)->write((const char*)s, n); }
    ostream& form(const char *format ...);
    ostream& vform(const char *format, char *  args)
	{ return ((ostream*)this)->vform(format, args); }
    ostream& seekp(streampos pos) { return ((ostream*)this)->seekp(pos); }
    ostream& seekp(streamoff off, _seek_dir dir)
	{ return ((ostream*)this)->seekp(off, dir); }
    streampos tellp() { return ((ostream*)this)->tellp(); }
};

extern istream cin;
extern ostream cout, cerr, clog;  

struct Iostream_init { } ;   

inline ios& dec(ios& i)
{ i.setf(ios::dec, ios::dec|ios::hex|ios::oct); return i; }
inline ios& hex(ios& i)
{ i.setf(ios::hex, ios::dec|ios::hex|ios::oct); return i; }
inline ios& oct(ios& i)
{ i.setf(ios::oct, ios::dec|ios::hex|ios::oct); return i; }


# 7 "/usr/local/lib/g++-include/stream.h" 2 3


extern char* form(const char*, ...);

extern char* dec(long, int=0);
extern char* dec(int, int=0);
extern char* dec(unsigned long, int=0);
extern char* dec(unsigned int, int=0);

extern char* hex(long, int=0);
extern char* hex(int, int=0);
extern char* hex(unsigned long, int=0);
extern char* hex(unsigned int, int=0);

extern char* oct(long, int=0);
extern char* oct(int, int=0);
extern char* oct(unsigned long, int=0);
extern char* oct(unsigned int, int=0);

inline istream& WS(istream& str) { return ws(str); }


# 2 "file.cc" 2

# 1 "file.h" 1
# 1 "/usr/local/lib/g++-include/stdio.h" 1 3
 
 
















# 174 "/usr/local/lib/g++-include/stdio.h" 3

# 1 "file.h" 2






extern short getFileName(char *,char *);
extern short appendFileName(char *,char *,char *);
extern struct _iobuf  *fopenWriteFile(char *),*fopenReadFile(char *);
# 3 "file.cc" 2


short getFileName(char fileName[],char str[])
{
  char ch;
  short i;

  printf("\n%s\n",str);
	i=0;
  ch=	(--((&_iob[0]) )->_cnt>=0? ((int)*((&_iob[0]) )->_ptr++):_filbuf((&_iob[0]) ))  ;
	if(ch=='\n')
		ch=	(--((&_iob[0]) )->_cnt>=0? ((int)*((&_iob[0]) )->_ptr++):_filbuf((&_iob[0]) ))  ;
  while (ch!='\n')
  {
    fileName[i++]=ch;
    ch=	(--((&_iob[0]) )->_cnt>=0? ((int)*((&_iob[0]) )->_ptr++):_filbuf((&_iob[0]) ))  ;
  }
	fileName[i]='\0';
  return(i);
}

ostream& openWriteFile(char fileName[]) return retStream(cout);
{
	filebuf f1;
	char ch;

  if(f1.open(fileName,input)==0)
  {
		cout << "creating file " << fileName << "\n";
		if (f1.open(fileName,output)==0)
			cout << "file " << fileName << " COULD NOT be created\n";
  }
	else
	{
		cout << "\noverwrite existing file " << fileName << " (y/n)? ";
		cin >> ch;
		if (ch=='y')
		{
			cout << "overwriting file " << fileName << "\n";
			if (f1.open(fileName,output)==0)
				cout << "file " << fileName << " COULD NOT be created\n";
		}
		cin.ignore();
	}
	retStream(&f1);
}


 







































		}
		else
			fstream= 0 ;
	}
	return(fstream);
}


struct _iobuf  *fopenAppendFile(char fileName[])
{
  struct _iobuf  *fstream,*fopen();
	char ch;

  if((fstream=fopen(fileName,"r"))== 0 )
  {
    printf("creating file %s\n",fileName);
    fstream=fopen(fileName,"w");
		if (fstream == 0 )
			printf("\nfile %s COULD NOT be created\n",fileName);
  }
	else
	{
		fclose(fstream);
    fstream=fopen(fileName,"a");
		if (fstream == 0 )
    	fstream=fopen(fileName,"a");
		if (fstream == 0 )
			printf("\nfile %s COULD NOT be appended\n",fileName);
	}
	return(fstream);
}

struct _iobuf  *fopenReadFile(char fileName[])
{
  struct _iobuf  *fstream,*fopen();

  if((fstream=fopen(fileName,"r"))== 0 )
	{
    printf("can't open file %s\n",fileName);
	}
	return(fstream);
}
*/

short appendFileName(char fileName[], char str[], char retFileName[])
{
  short i=0,j=0;
	
	while(i<30  && fileName[i]!='\0')
		retFileName[i]=fileName[i++];
	if(i>=30 )
	{
		printf("error: appendFileName--file name too long");
		retFileName[0]='\0';
		return(0);
	}
	if(str[0]=='\0')
		retFileName[i]='\0';   
	else
	{
		retFileName[i++]='.';
		while(i<30  && str[j]!='\0')
			retFileName[i++]=str[j++];
		if(i>=30 )
		{
			printf("error: appendFileName--append string too long");
			retFileName[0]='\0';
			return(0);
		}
		for(i=i;i<30 ;i++)
			retFileName[i]='\0';
	}
	return(1);
}

***************************file.h**********************************

#include <stdio.h>

#define FILENAMELEN 30
#define STRINGLEN 20
#define PMODE 0666

extern short getFileName(char *,char *);
extern short appendFileName(char *,char *,char *);
extern FILE *fopenWriteFile(char *),*fopenReadFile(char *);

***************************file.cc**********************************

#include <stdio.h>
#include <stream.h>
#include "file.h"

short getFileName(char fileName[],char str[])
{
  char ch;
  short i;

  printf("\n%s\n",str);
	i=0;
  ch=getchar();
	if(ch=='\n')
		ch=getchar();
  while (ch!='\n')
  {
    fileName[i++]=ch;
    ch=getchar();
  }
	fileName[i]='\0';
  return(i);
}

ostream& openWriteFile(char fileName[]) return retStream(cout);
{
	filebuf f1;
	char ch;

  if(f1.open(fileName,input)==0)
  {
		cout << "creating file " << fileName << "\n";
		if (f1.open(fileName,output)==0)
			cout << "file " << fileName << " COULD NOT be created\n";
  }
	else
	{
		cout << "\noverwrite existing file " << fileName << " (y/n)? ";
		cin >> ch;
		if (ch=='y')
		{
			cout << "overwriting file " << fileName << "\n";
			if (f1.open(fileName,output)==0)
				cout << "file " << fileName << " COULD NOT be created\n";
		}
		cin.ignore();
	}
	retStream(&f1);
}


/*
int openReadFile(char fileName[])
{
  int fp;

  if((fp=open(fileName,0))== -1)
	{
    printf("can't open file %s\n",fileName);
	}
	return(fp);
}



FILE *fopenWriteFile(char fileName[])
{
  FILE *fstream,*fopen();
	char ch;

  if((fstream=fopen(fileName,"r"))== NULL)
  {
    printf("creating file %s\n",fileName);
    fstream=fopen(fileName,"w");
		if (fstream == NULL)
			printf("\nfile %s COULD NOT be created",fileName);
  }
	else
	{
		fclose(fstream);
		printf("\noverwite existing file %s (y/n)? ",fileName);
		ch=getchar();
		if (ch=='\n')
			ch=getchar();
		if (ch=='y')
		{
			printf("overwriting file %s\n",fileName);
    	fstream=fopen(fileName,"w");
			if (fstream == NULL)
				printf("\nfile %s COULD NOT be created",fileName);
			getchar();  /* clear out input*/
		}
		else
			fstream= NULL;
	}
	return(fstream);
}


FILE *fopenAppendFile(char fileName[])
{
  FILE *fstream,*fopen();
	char ch;

  if((fstream=fopen(fileName,"r"))== NULL)
  {
    printf("creating file %s\n",fileName);
    fstream=fopen(fileName,"w");
		if (fstream == NULL)
			printf("\nfile %s COULD NOT be created\n",fileName);
  }
	else
	{
		fclose(fstream);
    fstream=fopen(fileName,"a");
		if (fstream == NULL)
    	fstream=fopen(fileName,"a");
		if (fstream == NULL)
			printf("\nfile %s COULD NOT be appended\n",fileName);
	}
	return(fstream);
}

FILE *fopenReadFile(char fileName[])
{
  FILE *fstream,*fopen();

  if((fstream=fopen(fileName,"r"))== NULL)
	{
    printf("can't open file %s\n",fileName);
	}
	return(fstream);
}
*/

short appendFileName(char fileName[], char str[], char retFileName[])
{
  short i=0,j=0;
	
	while(i<FILENAMELEN && fileName[i]!='\0')
		retFileName[i]=fileName[i++];
	if(i>=FILENAMELEN)
	{
		printf("error: appendFileName--file name too long");
		retFileName[0]='\0';
		return(0);
	}
	if(str[0]=='\0')
		retFileName[i]='\0';  /*no '.' if null appendage*/
	else
	{
		retFileName[i++]='.';
		while(i<FILENAMELEN && str[j]!='\0')
			retFileName[i++]=str[j++];
		if(i>=FILENAMELEN)
		{
			printf("error: appendFileName--append string too long");
			retFileName[0]='\0';
			return(0);
		}
		for(i=i;i<FILENAMELEN;i++)
			retFileName[i]='\0';
	}
	return(1);
}


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