From: dougm@cs.rice.edu (Doug Moore)
Subject: 2.3.3 - fcnptrs in derived template constrs - error 180
Organization: GNUs Not Usenet
Distribution: gnu
Date: Wed, 30 Dec 1992 04:04:11 GMT

The code that follows generates spurious warnings when -Wall is
specified (about values computed not used).  But more significantly,
it ultimately crashes the compiler with error 180.  That is related to
an attempt to use a private constructor whose arguments include a
function pointer.  Look for "(*f)".

A sparc, sunos4.1.2, g++ 2.3.3 as distributed.

Verbose compiler output:

========================================================================
g++ test.cc -v -Wall -lm
Reading specs from /blossom/lib/gcc-lib/sun4/2.3.3/specs
gcc version 2.3.3
 /blossom/lib/gcc-lib/sun4/2.3.3/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 -Wall test.cc /usr/tmp/cca22076.i
GNU CPP version 2.3.3 (sparc)
 /blossom/lib/gcc-lib/sun4/2.3.3/cc1plus /usr/tmp/cca22076.i -quiet -dumpbase test.cc -Wall -version -o /usr/tmp/cca22076.s
GNU C++ version 2.3.3 (sparc) compiled by GNU C version 2.3.3.
test.cc: In function `int  main ()':
test.cc:6: in base initialization for class `Vector<double ,3>',
test.cc:6: invalid initializer to constructor for type `Vector<double ,3>'
test.cc:6: in base initialization for class `Vector<double ,3>',
test.cc:6: invalid initializer to constructor for type `Vector<double ,3>'
test.cc:9: in base initialization for class `Vector<double ,3>',
test.cc:9: invalid initializer to constructor for type `Vector<double ,3>'
Direction.h: In method `class Direction<double ,3> Direction<double ,3>::operator - ()const ':
Direction.h:28: warning: value computed is not used
Vector.h: In method `class Vector<double ,3> Vector<double ,3>::operator (unary *) (double)const ':
Vector.h:100: too few arguments for constructor `Vector'
Vector.h:100: in base initialization for class `Vector<double ,3>'
Vector.h:102: warning: value computed is not used
Vector.h: In method `class Vector<double ,3> Vector<double ,3>::operator - ()const ':
Vector.h:89: too few arguments for constructor `Vector'
Vector.h:89: in base initialization for class `Vector<double ,3>'
Vector.h:91: warning: value computed is not used
Vector.h: In method `class Vector<double ,3> Vector<double ,3>::operator - (const class Vector<double ,3>&)const ':
Vector.h:70: too few arguments for constructor `Vector'
Vector.h:70: in base initialization for class `Vector<double ,3>'
Vector.h:72: warning: value computed is not used
Vector.h: In method `class Vector<double ,3> Vector<double ,3>::operator + (const class Vector<double ,3>&)const ':
Vector.h:51: Internal compiler error 180.
Vector.h:51: Please report this to `bug-g++@prep.ai.mit.edu'.

Compilation exited abnormally with code 1 at Tue Dec 29 21:58:11
========================================================================

The complete source that generates this error follows.

Doug Moore
(dougm@cs.rice.edu)

# 1 "test.cc"
# 1 "Vector.h" 1


# 1 "Direction.h" 1


# 1 "Tuple.h" 1


# 1 "/blossom/lib/gcc-lib/sun4/2.3.3/g++-include/iostream.h" 1 3
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 



#pragma interface



# 1 "/blossom/lib/gcc-lib/sun4/2.3.3/g++-include/streambuf.h" 1 3
 
 
 
 
 
 
 
 
 
 
 
 
 
 





#pragma interface


   

# 1 "/blossom/lib/gcc-lib/sun4/2.3.3/g++-include/_G_config.h" 1 3
  






typedef long _G_clock_t;
typedef short _G_dev_t;
typedef long   _G_fpos_t;
typedef unsigned short _G_gid_t;
typedef unsigned long _G_ino_t;
typedef unsigned short _G_mode_t;
typedef short _G_nlink_t;
typedef long _G_off_t;
typedef int _G_pid_t;
typedef int _G_ptrdiff_t;
typedef int _G_sigset_t;
typedef int _G_size_t;
typedef long _G_time_t;
typedef unsigned short _G_uid_t;
typedef unsigned short _G_wchar_t;
typedef int   _G_ssize_t;
typedef char * _G_va_list;











 






 
 

# 25 "/blossom/lib/gcc-lib/sun4/2.3.3/g++-include/streambuf.h" 2 3















class ostream; class streambuf; class backupbuf;

 







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

typedef _G_off_t streamoff;
typedef _G_off_t streampos;  

typedef unsigned long __fmtflags;
typedef unsigned char __iostate;

struct _ios_fields {  
    streambuf *_strbuf;
    ostream* _tie;
    int _width;
    __fmtflags _flags;
    _G_wchar_t _fill;
    __iostate _state;
    __iostate _exceptions;
    int _precision;
};















# 95 "/blossom/lib/gcc-lib/sun4/2.3.3/g++-include/streambuf.h" 3


class ios : public _ios_fields {
  public:
    typedef __fmtflags fmtflags;
    typedef int iostate;
    typedef int openmode;
    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 ,
	bin = 128  };
    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=010000, unitbuf=020000, stdio=040000,
	   dont_close=0x80000000  
	   };
    enum {  
	basefield=dec+oct+hex,
	floatfield = scientific+fixed,
	adjustfield = left+right+internal
    };

# 138 "/blossom/lib/gcc-lib/sun4/2.3.3/g++-include/streambuf.h" 3


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

     
    _G_wchar_t fill() const { return (_G_wchar_t)_fill; }
    _G_wchar_t fill(_G_wchar_t newf)
	{_G_wchar_t oldf = (_G_wchar_t)_fill; _fill = (char)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; }




    void _throw_failure() { }


    streambuf* rdbuf() const { return _strbuf; }
    void clear(iostate state = 0) {
	_state = _strbuf ? state : state|badbit;
	if (_state & _exceptions) _throw_failure(); }
    void set(iostate flag) { _state |= flag;
	if (_state & _exceptions) _throw_failure(); }
    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; }
    iostate rdstate() const { return _state; }
    operator void*() const { return fail() ? (void*)0 : (void*)(-1); }
    int operator!() const { return fail(); }
    iostate exception(iostate enable) {
	iostate old = _exceptions; _exceptions = enable;
	if (_state & _exceptions) _throw_failure();
	return old; }

    static int sync_with_stdio(int on);
    static void sync_with_stdio() { sync_with_stdio(1); }









  protected:
    ios(streambuf* sb = 0, ostream* tie = 0);
    virtual ~ios();
    void init(streambuf* sb) { _state=0; _strbuf=sb; }
};




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* base() const { return _base; }
    char* ebuf() const { return _ebuf; }
    int blen() const { return _ebuf - _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 != ((void*)0) ; }
    int have_markers() { return _markers != ((void*)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() == ((void*)0) ) doallocbuf(); }
    void doallocbuf();
    virtual int sync();
    virtual int pbackfail(int c);
    virtual streambuf* setbuf(char* p, int len);
    int in_avail() { return _egptr - _gptr; }
    int out_waiting() { return _pptr - _pbase; }
    virtual int xsputn(const char* s, int n);
    int sputn(const char* s, int n) { return xsputn(s, n); }
    int padn(char pad, int n);  
    virtual int xsgetn(char* s, int n);
    int sgetn(char* s, int n) { return xsgetn(s, n); }
    int ignore(int);
    virtual int get_column();
    virtual int set_column(int);
    long sgetline(char* buf, _G_size_t 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) ;
	return _gptr++, sgetc(); }
    int sputc(int c) {
	if (_pptr >= _epptr) return __overflow(this, (unsigned char)c);
	else return *_pptr++ = c, (unsigned char)c; }
    void stossc() { if (_gptr < _egptr) _gptr++; }
    int vscan(char const *fmt0, _G_va_list ap, ios* stream = ((void*)0) );
    int scan(char const *fmt0 ...);
    int vform(char const *fmt0, _G_va_list ap);
    int form(char const *fmt0 ...);




};

 
 

 
 
 
 

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;
    _G_fpos_t  _offset;
 
};

class filebuf : public backupbuf {
  protected:
    struct __file_fields _fb;
    void init();
  public:
    static const int openprot;  
    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, ios::openmode mode, int prot = 0664);
    virtual int underflow();
    virtual int overflow(int c = (-1) );
    int is_open() const { return _fb._fileno >= 0; }
    int fd() const { return is_open() ? _fb._fileno : (-1) ; }
    filebuf* close();
    virtual int doallocate();
    virtual streampos seekoff(streamoff, _seek_dir, int mode=ios::in|ios::out);
    virtual streambuf* setbuf(char* p, int len);
    int xsputn(const char* s, int n);
    int xsgetn(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 _G_ssize_t sys_read(char* buf, _G_size_t size);
    virtual _G_fpos_t  sys_seek(_G_fpos_t , _seek_dir);
    virtual _G_ssize_t sys_write(const void*, long);
    virtual int sys_stat(void*);  
    virtual int sys_close();
};

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


# 24 "/blossom/lib/gcc-lib/sun4/2.3.3/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 : virtual public ios
{
     
    void do_osfx();
  public:
    ostream() { }
    ostream(streambuf* sb, ostream* tied=((void*)0) );
    int opfx() {
	if (!good()) return 0; else { 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& put(unsigned char c) { return put((char)c); }

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

    ostream& put(signed char c) { return put((char)c); }
    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, _G_va_list args);

    ostream& operator<<(char c);
    ostream& operator<<(unsigned char c) { return (*this) << (char)c; }

    ostream& operator<<(signed char c) { return (*this) << (char)c; }

    ostream& operator<<(const char *s);
    ostream& operator<<(const unsigned char *s)
	{ return (*this) << (const char*)s; }

    ostream& operator<<(const signed char *s)
	{ return (*this) << (const char*)s; }

    ostream& operator<<(void *p);
    ostream& operator<<(int n);
    ostream& operator<<(unsigned int n);
    ostream& operator<<(long n);
    ostream& operator<<(unsigned long n);

    ostream& operator<<(long long n);
    ostream& operator<<(unsigned long long n);

    ostream& operator<<(short n) {return operator<<((int)n);}
    ostream& operator<<(unsigned short n) {return operator<<((unsigned int)n);}
    ostream& operator<<(double n);
    ostream& operator<<(float n) { return operator<<((double)n); }
    ostream& operator<<(__omanip func) { return (*func)(*this); }
    ostream& operator<<(__manip func) {(*func)(*this); return *this;}
    ostream& operator<<(streambuf*);
};

class istream : virtual public ios
{
     
    _G_ssize_t _gcount;

    int _skip_ws();
  public:
    istream() { _gcount = 0; }
    istream(streambuf* sb, ostream*tied=((void*)0) );
    streambuf* istreambuf() const { return _strbuf; }
    istream& get(char* ptr, int len, char delim = '\n');
    istream& get(unsigned char* ptr, int len, char delim = '\n')
	{ return get((char*)ptr, len, delim); }
    istream& get(char& c);
    istream& get(unsigned char& c) { return get((char&)c); }
    istream& getline(char* ptr, int len, char delim = '\n');
    istream& getline(unsigned char* ptr, int len, char delim = '\n')
	{ return getline((char*)ptr, len, delim); }

    istream& get(signed char& c)  { return get((char&)c); }
    istream& get(signed char* ptr, int len, char delim = '\n')
	{ return get((char*)ptr, len, delim); }
    istream& getline(signed char* ptr, int len, char delim = '\n')
	{ return getline((char*)ptr, len, delim); }

    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& 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; }
    _G_ssize_t 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, _G_va_list args);





    istream& operator>>(char*);
    istream& operator>>(unsigned char* p) { return operator>>((char*)p); }

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

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

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

    istream& operator>>(int&);
    istream& operator>>(long&);

    istream& operator>>(long long&);

    istream& operator>>(short&);
    istream& operator>>(unsigned int&);
    istream& operator>>(unsigned long&);

    istream& operator>>(unsigned long long&);

    istream& operator>>(unsigned short&);
    istream& operator>>(float&);
    istream& operator>>(double&);
    istream& operator>>( __manip func) {(*func)(*this); return *this;}
    istream& operator>>(__imanip func) { return (*func)(*this); }
    istream& operator>>(streambuf*);
};


class iostream : public istream, public ostream
{
    _G_ssize_t _gcount;
  public:
    iostream() { _gcount = 0; }
    iostream(streambuf* sb, ostream*tied=((void*)0) );
};

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; }


# 3 "Tuple.h" 2










template<class Scalar>	inline void tuple_set(Scalar dst[], const Scalar src, int size)	{	do dst[--size]  = src;	while (size > 0);	} ;









template<class Scalar>	inline void tuple_copy(Scalar dst[], const Scalar src[], int size)	{	do --size, dst[size]  = src[size];	while (size > 0);	} ;

















template<class Scalar>
inline istream& tuple_scan(istream& in, Scalar elem[], int size)			      
{
  int i = 0;
  do --size, in >> elem[i++];
  while (size > 0);
  return in;
}

template<class Scalar>
inline ostream& tuple_print(ostream& ut, Scalar elem[], int size)
{
  int i = 0;
  do --size, ut << " " << elem[i++];
  while (size > 0);
  return ut;
}

template <class Scalar, int size>
class Tuple
{
public:
  
  Tuple() { }
  Tuple(Scalar s) {tuple_set(elem, s, size);}
  Tuple(Scalar values[size]) {tuple_copy(elem, values, size);}
  Tuple(const Tuple& src) {tuple_copy(elem, src.elem, size);}
  Tuple(istream& in) {scan(in);}
  
  Tuple& operator = (const Tuple& src)
  {tuple_copy(elem, src.elem, size); return *this;}

  Scalar& operator[] (int i) {return elem[i];}

  Scalar operator[] (int i) const {return elem[i];}
  
friend istream& operator >> (istream& in, Tuple<Scalar,size>& dst)
  {return dst.scan(in);}
  
friend ostream& operator << (ostream& ut, const Tuple<Scalar,size>& src)
  {return src.print(ut);}

protected:
  Scalar elem[size];
  istream& scan(istream& in) {return tuple_scan(in, elem, size);}
  ostream& print(ostream& ut) const {return tuple_print(ut, elem, size);}
};

template <class Scalar, int size>
inline istream& operator >> (istream& in, Tuple<Scalar,size>& dst)
{return dst.scan(in);}

template <class Scalar, int size>
inline ostream& operator << (ostream& ut, const Tuple<Scalar,size>& src)
{return src.print(ut);}


# 3 "Direction.h" 2

# 1 "/blossom/lib/gcc-lib/sun4/2.3.3/g++-include/iostream.h" 1 3
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

# 222 "/blossom/lib/gcc-lib/sun4/2.3.3/g++-include/iostream.h" 3

# 4 "Direction.h" 2

# 1 "/blossom/lib/gcc-lib/sun4/2.3.3/g++-include/math.h" 1 3
 
 



















#pragma interface











# 64 "/blossom/lib/gcc-lib/sun4/2.3.3/g++-include/math.h" 3

extern "C" {

double  acos(double);
double  acosh(double);
double  asin(double);
double  asinh(double);
double  atan(double);
double  atan2(double, double);
double  atanh(double);
double  cbrt(double);
double  ceil(double);
double  copysign(double,double);
double  cos(double);
double  cosh(double);
double  drem(double,double);
double  erf(double);
double  erfc(double);
double  exp(double);
double  expm1(double);
double  fabs(double);
double  finite(double);
double  floor(double);
double	fmod(double, double);
double  frexp(double, int*);
double  gamma(double);
double  hypot(double,double);
double  infnan(int);

 
int     isinf(double);
int     isnan(double);

double  j0(double);
double  j1(double);
double  jn(int, double);
double  ldexp(double, int);
double  lgamma(double);
double  log(double);
double  log10(double);
double  log1p(double);
double  logb(double);
double  modf(double, double*);
double  pow(double, double);
double  rint(double);
double  scalb(double, int);
double  sin(double);
double  sinh(double);
double  sqrt(double);
double  tan(double);
double  tanh(double);
double  y0(double);
double  y1(double);
double  yn(int, double);

double aint(double);
double anint(double);
int irint(double);
int nint(double);
}



 

 


struct libm_exception
{
  int type;
  char* name;
  double arg1, arg2, retval;
};








extern "C" int matherr(libm_exception*);



# 1 "/blossom/lib/gcc-lib/sun4/2.3.3/include/float.h" 1 3
 


 

    


    


    


    


    


    


    


    


    


    


    



    


    


    


    


    


    


    


    


    



    


    


    



union __convert_long_double {
  int __convert_long_double_i[4];
  long double __convert_long_double_d;
};


    


    


    


    


    


    




# 150 "/blossom/lib/gcc-lib/sun4/2.3.3/g++-include/math.h" 2 3


 









 







 

















































# 5 "Direction.h" 2


template <class Scalar, int size>
class Direction: public Tuple<Scalar, size>
{
public:

  Direction operator- () const;
friend Scalar cos (const Direction& src1, const Direction& src2);
friend Direction<Scalar,size> perp(Direction<Scalar,size> factor[size-1]);

friend istream& operator >> (istream& in, Direction<Scalar,size>& dst);
friend ostream& operator << (ostream& ut, const Direction<Scalar,size>& src);
};

template<class Scalar>	inline void drctn_negcopy(Scalar dst[], const Scalar src[], int size)	{	do --size, dst[size]  =- src[size];	while (size > 0);	} ;

template <class Scalar, int size>
inline Direction<Scalar, size>
Direction<Scalar, size>::operator- () const
{
  Direction dst;
  drctn_negcopy(dst.elem, elem, size);
  return dst;
}

template <class Scalar, int size>
inline Scalar
cos (const Direction<Scalar,size>& src1, const Direction<Scalar,size>& src2)
{
  Scalar dot = 0, nrm1 = 0, nrm2 = 0;
  int sz = size;
  do
    --sz,
    dot  += src1.elem[sz] * src2.elem[sz],
    nrm1 += src1.elem[sz] * src1.elem[sz],
    nrm2 += src2.elem[sz] * src2.elem[sz];
  while (sz > 0);
  return dot/sqrt(nrm1*nrm2);
}

template <class Scalar, int size>
inline istream& operator >> (istream& in, Direction<Scalar,size>& dst)
{return dst.scan(in);}

template <class Scalar, int size>
inline ostream& operator << (ostream& ut, const Direction<Scalar,size>& src)
{return src.print(ut);}


# 3 "Vector.h" 2

# 1 "/blossom/lib/gcc-lib/sun4/2.3.3/g++-include/iostream.h" 1 3
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

# 222 "/blossom/lib/gcc-lib/sun4/2.3.3/g++-include/iostream.h" 3

# 4 "Vector.h" 2

# 1 "/blossom/lib/gcc-lib/sun4/2.3.3/g++-include/math.h" 1 3
 
 

















# 219 "/blossom/lib/gcc-lib/sun4/2.3.3/g++-include/math.h" 3

# 5 "Vector.h" 2


template <class Scalar, int size>
class Vector: public Direction<Scalar,size>
{
public:
  
  Vector  operator+  (const Vector& src) const;
  Vector& operator+= (const Vector& src);
  Vector  operator-  (const Vector& src) const;
  Vector& operator-= (const Vector& src);
  Vector  operator-  () const;
  Vector  operator*  (Scalar s) const;
  Vector& operator*= (Scalar s);
  Vector  operator/  (Scalar s) const;
  Vector& operator/= (Scalar s);
  Scalar  operator* (const Vector& src) const;

  Scalar length2() const;
  Scalar length() const;
  Vector unit() const;
  Vector& unitize();

friend istream& operator >> (istream& in, Vector<Scalar,size>& dst);
friend ostream& operator << (ostream& ut, const Vector<Scalar,size>& src);

private:
  Vector(void (*f)(Scalar*, const Scalar*, const Scalar*, int),
	 const Vector& src1,
	 const Vector& src2);
};

template <class Scalar, int size>
Vector<Scalar,size>::Vector(void (*f)(Scalar*, const Scalar*, const Scalar*, int),
			    const Vector& src1,
			    const Vector& src2)
{ (*f)(elem, src1.elem, src2.elem, size); }

template<class Scalar>	void vectr_add(Scalar dst[], const Scalar src1[], const Scalar src2[], int size) {	do --size, dst[size] = src1[size]  + src2[size];	while (size > 0);	} ;

template <class Scalar, int size>
inline Vector<Scalar,size>
Vector<Scalar,size>::operator+ (const Vector& src) const
{
 
 
  return Vector(vectr_add, *this, src);
}

template<class Scalar>	inline void vectr_addcopy(Scalar dst[], const Scalar src[], int size)	{	do --size, dst[size]  += src[size];	while (size > 0);	} ;

template <class Scalar, int size>
inline Vector<Scalar,size>&
Vector<Scalar,size>::operator+= (const Vector& src)
{
  vectr_addcopy(elem, src.elem, size);
  return *this;
}

template<class Scalar>	void vectr_sub(Scalar dst[], const Scalar src1[], const Scalar src2[], int size) {	do --size, dst[size] = src1[size]  - src2[size];	while (size > 0);	} ;

template <class Scalar, int size>
inline Vector<Scalar,size>
Vector<Scalar,size>::operator- (const Vector& src) const
{
  Vector dst;
  vectr_sub(dst.elem, elem, src.elem, size);
  return dst;
}

template<class Scalar>	inline void vectr_subcopy(Scalar dst[], const Scalar src[], int size)	{	do --size, dst[size]  -= src[size];	while (size > 0);	} ;

template <class Scalar, int size>
inline Vector<Scalar,size>&
Vector<Scalar,size>::operator-= (const Vector& src)
{
  vectr_subcopy(elem, src.elem, size);
  return *this;
}

template <class Scalar, int size>
inline Vector<Scalar,size>
Vector<Scalar,size>::operator- () const
{
  Vector dst;
  drctn_negcopy(dst.elem, elem, size);
  return dst;
}

template<class Scalar>	void vectr_smulcopy(Scalar dst[], const Scalar src1[], Scalar src2, int size)	{	do --size, dst[size] = src1[size]  * src2;	while (size > 0);	} ;

template <class Scalar, int size>
inline Vector<Scalar,size>
Vector<Scalar,size>::operator* (Scalar s) const
{
  Vector dst;
  vectr_smulcopy(dst.elem, elem, s, size);
  return dst;
}

template<class Scalar>	inline void vectr_mpycopy(Scalar dst[], const Scalar src, int size)	{	do dst[--size]  *= src;	while (size > 0);	} ;

template <class Scalar, int size>
inline Vector<Scalar,size>&
Vector<Scalar,size>::operator*= (Scalar s)
{
  vectr_mpycopy(elem, s, size);
  return *this;
}

template <class Scalar, int size>
inline Vector<Scalar,size>
Vector<Scalar,size>::operator/ (Scalar s) const
{ return *this * (1./s); }

template <class Scalar, int size>
inline Vector<Scalar,size>&
Vector<Scalar,size>::operator/= (Scalar s)
{ return *this *= 1./s; }

template <class Scalar, int size>
inline Vector<Scalar,size>
operator* (Scalar s, const Vector<Scalar,size>& src)
{ return src * s; }

template <class Scalar, int size>
inline Scalar
Vector<Scalar,size>::operator* (const Vector& src) const
{
  Scalar dot = 0;
  int sz = size;
  do --sz, dot += elem[sz] * src.elem[sz];
  while (sz > 0);
  return dot;
}

template <class Scalar, int size>
inline Scalar
Vector<Scalar,size>::length2() const
{
  return *this * *this;
}

template <class Scalar, int size>
inline Scalar
Vector<Scalar,size>::length() const
{
  return sqrt(length2());
}

template <class Scalar, int size>
inline Vector<Scalar,size>
Vector<Scalar,size>::unit() const
{
  Scalar l = length();
  return (l!=0)? *this / l: *this;
}

template <class Scalar, int size>
inline Vector<Scalar,size>&
Vector<Scalar,size>::unitize()
{
  Scalar l = length();
  return (l!=0)? *this /= l: *this;
}

template <class Scalar, int size>
inline istream& operator >> (istream& in, Vector<Scalar,size>& dst)
{return dst.scan(in);}

template <class Scalar, int size>
inline ostream& operator << (ostream& ut, const Vector<Scalar,size>& src)
{return src.print(ut);}


# 1 "test.cc" 2

# 1 "/blossom/lib/gcc-lib/sun4/2.3.3/g++-include/iostream.h" 1 3
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

# 222 "/blossom/lib/gcc-lib/sun4/2.3.3/g++-include/iostream.h" 3

# 2 "test.cc" 2


main()
{
  Vector<double,3> a(cin), b(cin), c(a+b);
  c *= 3.;
  cout << c << endl;
  Vector<double,3> d(0);
  d = c - b;
  cout << d << endl;
  double e = (-d)*a;
  cout << e << endl;
}

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