550 lines
16 KiB
C
550 lines
16 KiB
C
// { dg-do assemble }
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// { dg-options "" }
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// This test case caused the compiler to abort at one point in time.
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// prms-id: 811
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class ostream; class streambuf;
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typedef long streamoff, streampos;
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struct _ios_fields {
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streambuf *_strbuf;
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ostream* _tie;
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int _width;
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unsigned long _flags;
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char _fill;
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unsigned char _state;
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unsigned short _precision;
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};
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enum state_value { _good = 0, _eof = 1, _fail = 2, _bad = 4 };
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enum open_mode { input=1, output=2, append=8 };
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class ios : public _ios_fields {
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public:
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enum io_state { goodbit=0, eofbit=1, failbit=2, badbit=4 };
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enum open_mode {
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in=1,
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out=2,
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ate=4,
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app=8,
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trunc=16,
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nocreate=32,
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noreplace=64 };
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enum seek_dir { beg, cur, end};
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enum { skipws=01, left=02, right=04, internal=010,
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dec=020, oct=040, hex=0100,
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showbase=0200, showpoint=0400, uppercase=01000, showpos=02000,
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scientific=04000, fixed=0100000, unitbuf=020000, stdio=040000,
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dont_close=0x80000000
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};
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ostream* tie() const { return _tie; }
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ostream* tie(ostream* val) { ostream* save=_tie; _tie=val; return save; }
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char fill() const { return _fill; }
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char fill(char newf) { char oldf = _fill; _fill = newf; return oldf; }
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unsigned long flags() const { return _flags; }
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unsigned long flags(unsigned long new_val) {
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unsigned long old_val = _flags; _flags = new_val; return old_val; }
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unsigned short precision() const { return _precision; }
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unsigned short precision(int newp) {
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unsigned short oldp = _precision; _precision = (unsigned short)newp;
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return oldp; }
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unsigned long setf(unsigned long val) {
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unsigned long oldbits = _flags;
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_flags |= val; return oldbits; }
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unsigned long setf(unsigned long val, unsigned long mask) {
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unsigned long oldbits = _flags;
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_flags = (_flags & ~mask) | (val & mask); return oldbits; }
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unsigned long unsetf(unsigned long mask) {
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unsigned long oldbits = _flags & mask;
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_flags &= ~mask; return oldbits; }
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int width() const { return _width; }
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int width(long val) { long save = _width; _width = val; return save; }
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static const unsigned long basefield;
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static const unsigned long adjustfield;
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static const unsigned long floatfield;
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streambuf* rdbuf() const { return _strbuf; }
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void clear(int state = 0) { _state = state; }
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int good() const { return _state == 0; }
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int eof() const { return _state & ios::eofbit; }
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int fail() const { return _state & (ios::badbit|ios::failbit); }
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int bad() const { return _state & ios::badbit; }
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int rdstate() const { return _state; }
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void set(int flag) { _state |= flag; }
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operator void*() const { return fail() ? (void*)0 : (void*)this; }
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int operator!() const { return fail(); }
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void unset(state_value flag) { _state &= ~flag; }
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void close();
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int is_open();
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int readable();
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int writable();
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protected:
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ios(streambuf*sb) { _strbuf=sb; _state=0; _width=0; _fill=' ';
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_flags=ios::skipws; _precision=6; }
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};
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typedef ios::seek_dir _seek_dir;
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//# 168 "/usr/latest/lib/g++-include/streambuf.h" 3
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struct __streambuf {
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int _flags;
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char* _gptr;
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char* _egptr;
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char* _eback;
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char* _pbase;
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char* _pptr;
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char* _epptr;
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char* _base;
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char* _ebuf;
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struct streambuf *_chain;
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};
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struct streambuf : private __streambuf {
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friend class ios;
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friend class istream;
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friend class ostream;
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protected:
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static streambuf* _list_all;
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streambuf*& xchain() { return _chain; }
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void _un_link();
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void _link_in();
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char* gptr() const { return _gptr; }
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char* pptr() const { return _pptr; }
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char* egptr() const { return _egptr; }
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char* epptr() const { return _epptr; }
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char* pbase() const { return _pbase; }
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char* eback() const { return _eback; }
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char* ebuf() const { return _ebuf; }
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char* base() const { return _base; }
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void xput_char(char c) { *_pptr++ = c; }
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int xflags() { return _flags; }
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int xflags(int f) { int fl = _flags; _flags = f; return fl; }
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void xsetflags(int f) { _flags |= f; }
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void gbump(int n) { _gptr += n; }
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void pbump(int n) { _pptr += n; }
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void setb(char* b, char* eb, int a=0);
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void setp(char* p, char* ep) { _pbase=_pptr=p; _epptr=ep; }
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void setg(char* eb, char* g, char *eg) { _eback=eb; _gptr=g; _egptr=eg; }
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public:
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static int flush_all();
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static void flush_all_linebuffered();
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virtual int underflow();
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virtual int overflow(int c = (-1) );
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virtual int doallocate();
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virtual streampos seekoff(streamoff, _seek_dir, int mode=ios::in|ios::out);
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virtual streampos seekpos(streampos pos, int mode = ios::in|ios::out);
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int sputbackc(char c);
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int sungetc();
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streambuf();
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virtual ~streambuf();
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int unbuffered() { return _flags & 2 ? 1 : 0; }
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int linebuffered() { return _flags & 0x4000 ? 1 : 0; }
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void unbuffered(int i)
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{ if (i) _flags |= 2 ; else _flags &= ~2 ; }
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void linebuffered(int i)
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{ if (i) _flags |= 0x4000 ; else _flags &= ~0x4000 ; }
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int allocate() {
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if (base() || unbuffered()) return 0;
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else return doallocate(); }
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virtual int sync();
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virtual int pbackfail(int c);
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virtual int ungetfail();
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virtual streambuf* setbuf(char* p, int len);
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int in_avail() { return _egptr - _gptr; }
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int out_waiting() { return _pptr - _pbase; }
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virtual int sputn(const char* s, int n);
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virtual int sgetn(char* s, int n);
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long sgetline(char* buf, int n, char delim, int putback_delim);
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int sbumpc() {
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if (_gptr >= _egptr && underflow() == (-1) ) return (-1) ;
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else return *(unsigned char*)_gptr++; }
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int sgetc() {
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if (_gptr >= _egptr && underflow() == (-1) ) return (-1) ;
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else return *(unsigned char*)_gptr; }
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int snextc() {
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if (++_gptr >= _egptr && underflow() == (-1) ) return (-1) ;
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else return *(unsigned char*)_gptr; }
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int sputc(int c) {
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if (_pptr >= _epptr) return overflow(c);
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return *_pptr++ = c, (unsigned char)c; }
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int vscan(char const *fmt0, char* ap);
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int vform(char const *fmt0, char* ap);
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};
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struct __file_fields {
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char _fake;
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char _shortbuf[1];
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short _fileno;
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int _blksize;
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char* _save_gptr;
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char* _save_egptr;
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long _offset;
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};
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class filebuf : public streambuf {
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struct __file_fields _fb;
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void init();
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public:
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filebuf();
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filebuf(int fd);
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filebuf(int fd, char* p, int len);
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~filebuf();
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filebuf* attach(int fd);
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filebuf* open(const char *filename, const char *mode);
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filebuf* open(const char *filename, int mode, int prot = 0664);
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virtual int underflow();
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virtual int overflow(int c = (-1) );
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int is_open() { return _fb._fileno >= 0; }
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int fd() { return is_open() ? _fb._fileno : (-1) ; }
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filebuf* close();
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virtual int doallocate();
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virtual streampos seekoff(streamoff, _seek_dir, int mode=ios::in|ios::out);
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int sputn(const char* s, int n);
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int sgetn(char* s, int n);
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virtual int sync();
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protected:
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virtual int pbackfail(int c);
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int is_reading() { return eback() != egptr(); }
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char* cur_ptr() { return is_reading() ? gptr() : pptr(); }
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char* file_ptr() { return _fb._save_gptr ? _fb._save_egptr : egptr(); }
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int do_flush();
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virtual int sys_read(char* buf, int size);
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virtual long sys_seek(long , _seek_dir);
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virtual long sys_write(const void*, long);
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virtual int sys_stat(void*);
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virtual int sys_close();
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};
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inline int ios::readable() { return rdbuf()->_flags & 4 ; }
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inline int ios::writable() { return rdbuf()->_flags & 8 ; }
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inline int ios::is_open() {return rdbuf()->_flags & 4 +8 ;}
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//# 25 "/usr/latest/lib/g++-include/iostream.h" 2 3
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class istream; class ostream;
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typedef istream& (*__imanip)(istream&);
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typedef ostream& (*__omanip)(ostream&);
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extern istream& ws(istream& ins);
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extern ostream& flush(ostream& outs);
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extern ostream& endl(ostream& outs);
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extern ostream& ends(ostream& outs);
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class ostream : public ios
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{
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void do_osfx();
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public:
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ostream();
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ostream(streambuf* sb, ostream* tied=__null );
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~ostream();
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int opfx() { if (!good()) return 0; if (_tie) _tie->flush(); return 1; }
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void osfx() { if (flags() & (ios::unitbuf|ios::stdio))
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do_osfx(); }
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streambuf* ostreambuf() const { return _strbuf; }
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ostream& flush();
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ostream& put(char c);
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ostream& write(const char *s, int n);
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ostream& write(const unsigned char *s, int n) { return write((char*)s, n);}
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ostream& write(const void *s, int n) { return write((char*)s, n);}
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ostream& seekp(streampos);
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ostream& seekp(streamoff, _seek_dir);
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streampos tellp();
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ostream& form(const char *format ...);
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ostream& vform(const char *format, char* args);
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};
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extern ostream& operator<<(ostream&, char c);
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inline ostream& operator<<(ostream& os, unsigned char c)
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{ return os << (char)c; }
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extern ostream& operator<<(ostream&, const char *s);
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inline ostream& operator<<(ostream& os, const unsigned char *s)
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{ return os << (const char*)s; }
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extern ostream& operator<<(ostream&, void *p);
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extern ostream& operator<<(ostream&, int n);
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extern ostream& operator<<(ostream&, long n);
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extern ostream& operator<<(ostream&, unsigned int n);
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extern ostream& operator<<(ostream&, unsigned long n);
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inline ostream& operator<<(ostream& os, short n) {return os << (int)n;}
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inline ostream& operator<<(ostream& os, unsigned short n)
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{return os << (unsigned int)n;}
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extern ostream& operator<<(ostream&, float n);
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extern ostream& operator<<(ostream&, double n);
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inline ostream& operator<<(ostream& os, __omanip func) { return (*func)(os); }
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extern ostream& operator<<(ostream&, streambuf*);
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class istream : public ios
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{
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int _gcount;
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public:
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istream();
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istream(streambuf* sb, ostream*tied=__null );
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~istream();
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streambuf* istreambuf() const { return _strbuf; }
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istream& get(char& c);
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istream& get(unsigned char& c);
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istream& read(char *ptr, int n);
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istream& read(unsigned char *ptr, int n) { return read((char*)ptr, n); }
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istream& read(void *ptr, int n) { return read((char*)ptr, n); }
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istream& getline(char* ptr, int len, char delim = '\n');
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istream& get(char* ptr, int len, char delim = '\n');
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istream& gets(char **s, char delim = '\n');
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int ipfx(int need) {
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if (!good()) { set(ios::failbit); return 0; }
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if (_tie && (need == 0 || rdbuf()->in_avail() < need)) _tie->flush();
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if (!need && (flags() & ios::skipws) && !ws(*this)) return 0;
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return 1;
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}
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int ipfx0() {
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if (!good()) { set(ios::failbit); return 0; }
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if (_tie) _tie->flush();
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if ((flags() & ios::skipws) && !ws(*this)) return 0;
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return 1;
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}
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int ipfx1() {
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if (!good()) { set(ios::failbit); return 0; }
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if (_tie && rdbuf()->in_avail() == 0) _tie->flush();
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return 1;
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}
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int get() { if (!ipfx1()) return (-1) ;
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int ch = _strbuf->sbumpc();
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if (ch == (-1) ) set(ios::eofbit);
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return ch; }
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int peek() { if (!ipfx1()) return (-1) ;
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int ch = _strbuf->sgetc();
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if (ch == (-1) ) set(ios::eofbit);
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return ch; }
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int gcount() { return _gcount; }
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istream& ignore(int n=1, int delim = (-1) );
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istream& seekg(streampos);
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istream& seekg(streamoff, _seek_dir);
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streampos tellg();
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istream& putback(char ch) {
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if (good() && _strbuf->sputbackc(ch) == (-1) ) clear(ios::badbit);
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return *this;}
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istream& unget() {
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if (good() && _strbuf->sungetc() == (-1) ) clear(ios::badbit);
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return *this;}
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istream& unget(char ch) { return putback(ch); }
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int skip(int i);
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};
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extern istream& operator>>(istream&, char*);
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inline istream& operator>>(istream& is, unsigned char* p)
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{ return is >> (char*)p; }
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extern istream& operator>>(istream&, char& c);
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extern istream& operator>>(istream&, unsigned char& c);
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extern istream& operator>>(istream&, int&);
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extern istream& operator>>(istream&, long&);
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extern istream& operator>>(istream&, short&);
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extern istream& operator>>(istream&, unsigned int&);
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extern istream& operator>>(istream&, unsigned long&);
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extern istream& operator>>(istream&, unsigned short&);
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extern istream& operator>>(istream&, float&);
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extern istream& operator>>(istream&, double&);
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inline istream& operator>>(istream& is, __imanip func) { return (*func)(is); }
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inline ostream& ostream::put(char c) { _strbuf->sputc(c); return *this; }
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class iostream : public ios {
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int _gcount;
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public:
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iostream();
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iostream(streambuf* sb, ostream*tied=__null );
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operator istream&() { return *(istream*)this; }
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operator ostream&() { return *(ostream*)this; }
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~iostream();
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istream& get(char& c) { return ((istream*)this)->get(c); }
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istream& get(unsigned char& c) { return ((istream*)this)->get(c); }
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istream& read(char *ptr, int n) { return ((istream*)this)->read(ptr, n); }
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istream& read(unsigned char *ptr, int n)
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{ return ((istream*)this)->read((char*)ptr, n); }
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istream& read(void *ptr, int n)
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{ return ((istream*)this)->read((char*)ptr, n); }
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istream& getline(char* ptr, int len, char delim = '\n')
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{ return ((istream*)this)->getline(ptr, len, delim); }
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istream& get(char* ptr, int len, char delim = '\n')
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{ return ((istream*)this)->get(ptr, len, delim); }
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istream& gets(char **s, char delim = '\n')
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{ return ((istream*)this)->gets(s, delim); }
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istream& ignore(int n=1, int delim = (-1) )
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{ return ((istream*)this)->ignore(n, delim); }
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int ipfx(int need) { return ((istream*)this)->ipfx(need); }
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int ipfx0() { return ((istream*)this)->ipfx0(); }
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int ipfx1() { return ((istream*)this)->ipfx1(); }
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int get() { return _strbuf->sbumpc(); }
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int peek() { return ipfx1() ? _strbuf->sgetc() : (-1) ; }
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int gcount() { return _gcount; }
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istream& putback(char ch) { return ((istream*)this)->putback(ch); }
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istream& unget() { return ((istream*)this)->unget(); }
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istream& seekg(streampos pos) { return ((istream*)this)->seekg(pos); }
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istream& seekg(streamoff off, _seek_dir dir)
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{ return ((istream*)this)->seekg(off, dir); }
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streampos tellg() { return ((istream*)this)->tellg(); }
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istream& unget(char ch) { return putback(ch); }
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int opfx() { return ((ostream*)this)->opfx(); }
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void osfx() { ((ostream*)this)->osfx(); }
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ostream& flush() { return ((ostream*)this)->flush(); }
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ostream& put(char c) { return ((ostream*)this)->put(c); }
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ostream& write(const char *s, int n)
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{ return ((ostream*)this)->write(s, n); }
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ostream& write(const unsigned char *s, int n)
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{ return ((ostream*)this)->write((char*)s, n); }
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ostream& write(const void *s, int n)
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{ return ((ostream*)this)->write((char*)s, n); }
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ostream& form(const char *format ...);
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ostream& vform(const char *format, char* args)
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{ return ((ostream*)this)->vform(format, args); }
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ostream& seekp(streampos pos) { return ((ostream*)this)->seekp(pos); }
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ostream& seekp(streamoff off, _seek_dir dir)
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{ return ((ostream*)this)->seekp(off, dir); }
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streampos tellp() { return ((ostream*)this)->tellp(); }
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};
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extern istream cin;
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extern ostream cout, cerr, clog;
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struct Iostream_init { } ;
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inline ios& dec(ios& i)
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{ i.setf(ios::dec, ios::dec|ios::hex|ios::oct); return i; }
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inline ios& hex(ios& i)
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{ i.setf(ios::hex, ios::dec|ios::hex|ios::oct); return i; }
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inline ios& oct(ios& i)
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{ i.setf(ios::oct, ios::dec|ios::hex|ios::oct); return i; }
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//# 7 "/usr/latest/lib/g++-include/stream.h" 2 3
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extern char* form(const char*, ...);
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extern char* dec(long, int=0);
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extern char* dec(int, int=0);
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extern char* dec(unsigned long, int=0);
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extern char* dec(unsigned int, int=0);
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extern char* hex(long, int=0);
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extern char* hex(int, int=0);
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extern char* hex(unsigned long, int=0);
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extern char* hex(unsigned int, int=0);
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extern char* oct(long, int=0);
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extern char* oct(int, int=0);
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extern char* oct(unsigned long, int=0);
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extern char* oct(unsigned int, int=0);
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inline istream& WS(istream& str) { return ws(str); }
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//# 9 "test.C" 2
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class Y {
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public:
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Y() {}
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virtual const char *stringify() = 0;
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virtual char *stringify2() const = 0; // { dg-error "overriding" }
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};
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class X: public Y {
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public:
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X(): Y() {}
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const char *stringify(); // { dg-error "candidate" }
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const char *stringify2() const; // { dg-error "candidate|conflicting return type" }
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};
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char *
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X::stringify() const // { dg-error "does not match" }
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{
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return "stringify";
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}
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const char *
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X::stringify2() // { dg-error "does not match" }
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{
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return "stringify2";
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}
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main()
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{
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X x;
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Y& y = x;
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cout << "x\n";
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cout << x.stringify() << '\n';
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cout << x.stringify2() << '\n';
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cout << "y\n";
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cout << y.stringify() << '\n';
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cout << y.stringify2() << '\n';
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}
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