111
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1 // { dg-do assemble }
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2 // { dg-options "-Wno-builtin-declaration-mismatch" }
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3 // This test case caused the compiler to abort at one point in time.
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4 // prms-id: 811
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5
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6 class ostream; class streambuf;
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7
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8 typedef long streamoff, streampos;
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9
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10 struct _ios_fields {
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11 streambuf *_strbuf;
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12 ostream* _tie;
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13 int _width;
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14 unsigned long _flags;
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15 char _fill;
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16 unsigned char _state;
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17 unsigned short _precision;
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18 };
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19
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20
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21 enum state_value { _good = 0, _eof = 1, _fail = 2, _bad = 4 };
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22 enum open_mode { input=1, output=2, append=8 };
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23
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24
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25 class ios : public _ios_fields {
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26 public:
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27 enum io_state { goodbit=0, eofbit=1, failbit=2, badbit=4 };
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28 enum open_mode {
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29 in=1,
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30 out=2,
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31 ate=4,
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32 app=8,
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33 trunc=16,
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34 nocreate=32,
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35 noreplace=64 };
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36 enum seek_dir { beg, cur, end};
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37 enum { skipws=01, left=02, right=04, internal=010,
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38 dec=020, oct=040, hex=0100,
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39 showbase=0200, showpoint=0400, uppercase=01000, showpos=02000,
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40 scientific=04000, fixed=0100000, unitbuf=020000, stdio=040000,
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41 dont_close=0x80000000
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42 };
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43
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44 ostream* tie() const { return _tie; }
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45 ostream* tie(ostream* val) { ostream* save=_tie; _tie=val; return save; }
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46
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47
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48 char fill() const { return _fill; }
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49 char fill(char newf) { char oldf = _fill; _fill = newf; return oldf; }
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50 unsigned long flags() const { return _flags; }
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51 unsigned long flags(unsigned long new_val) {
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52 unsigned long old_val = _flags; _flags = new_val; return old_val; }
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53 unsigned short precision() const { return _precision; }
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54 unsigned short precision(int newp) {
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55 unsigned short oldp = _precision; _precision = (unsigned short)newp;
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56 return oldp; }
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57 unsigned long setf(unsigned long val) {
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58 unsigned long oldbits = _flags;
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59 _flags |= val; return oldbits; }
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60 unsigned long setf(unsigned long val, unsigned long mask) {
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61 unsigned long oldbits = _flags;
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62 _flags = (_flags & ~mask) | (val & mask); return oldbits; }
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63 unsigned long unsetf(unsigned long mask) {
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64 unsigned long oldbits = _flags & mask;
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65 _flags &= ~mask; return oldbits; }
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66 int width() const { return _width; }
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67 int width(long val) { long save = _width; _width = val; return save; }
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68
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69 static const unsigned long basefield;
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70 static const unsigned long adjustfield;
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71 static const unsigned long floatfield;
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72
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73 streambuf* rdbuf() const { return _strbuf; }
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74 void clear(int state = 0) { _state = state; }
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75 int good() const { return _state == 0; }
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76 int eof() const { return _state & ios::eofbit; }
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77 int fail() const { return _state & (ios::badbit|ios::failbit); }
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78 int bad() const { return _state & ios::badbit; }
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79 int rdstate() const { return _state; }
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80 void set(int flag) { _state |= flag; }
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81 operator void*() const { return fail() ? (void*)0 : (void*)this; }
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82 int operator!() const { return fail(); }
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83
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84
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85 void unset(state_value flag) { _state &= ~flag; }
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86 void close();
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87 int is_open();
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88 int readable();
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89 int writable();
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90
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91
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92 protected:
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93 ios(streambuf*sb) { _strbuf=sb; _state=0; _width=0; _fill=' ';
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94 _flags=ios::skipws; _precision=6; }
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95 };
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96
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97
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98
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99
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100 typedef ios::seek_dir _seek_dir;
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101
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102
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103
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104
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105
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106
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107
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108
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109
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110
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111
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112
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113
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114
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115
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116
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117
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118
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119
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120
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121
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122
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123 //# 168 "/usr/latest/lib/g++-include/streambuf.h" 3
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124
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125
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126 struct __streambuf {
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127
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128 int _flags;
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129 char* _gptr;
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130 char* _egptr;
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131 char* _eback;
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132 char* _pbase;
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133 char* _pptr;
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134 char* _epptr;
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135 char* _base;
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136 char* _ebuf;
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137 struct streambuf *_chain;
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138
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139
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140
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141
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142 };
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143
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144 struct streambuf : private __streambuf {
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145 friend class ios;
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146 friend class istream;
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147 friend class ostream;
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148 protected:
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149 static streambuf* _list_all;
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150 streambuf*& xchain() { return _chain; }
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151 void _un_link();
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152 void _link_in();
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153 char* gptr() const { return _gptr; }
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154 char* pptr() const { return _pptr; }
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155 char* egptr() const { return _egptr; }
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156 char* epptr() const { return _epptr; }
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157 char* pbase() const { return _pbase; }
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158 char* eback() const { return _eback; }
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159 char* ebuf() const { return _ebuf; }
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160 char* base() const { return _base; }
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161 void xput_char(char c) { *_pptr++ = c; }
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162 int xflags() { return _flags; }
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163 int xflags(int f) { int fl = _flags; _flags = f; return fl; }
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164 void xsetflags(int f) { _flags |= f; }
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165 void gbump(int n) { _gptr += n; }
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166 void pbump(int n) { _pptr += n; }
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167 void setb(char* b, char* eb, int a=0);
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168 void setp(char* p, char* ep) { _pbase=_pptr=p; _epptr=ep; }
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169 void setg(char* eb, char* g, char *eg) { _eback=eb; _gptr=g; _egptr=eg; }
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170 public:
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171 static int flush_all();
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172 static void flush_all_linebuffered();
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173 virtual int underflow();
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174 virtual int overflow(int c = (-1) );
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175 virtual int doallocate();
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176 virtual streampos seekoff(streamoff, _seek_dir, int mode=ios::in|ios::out);
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177 virtual streampos seekpos(streampos pos, int mode = ios::in|ios::out);
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178 int sputbackc(char c);
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179 int sungetc();
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180 streambuf();
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181 virtual ~streambuf();
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182 int unbuffered() { return _flags & 2 ? 1 : 0; }
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183 int linebuffered() { return _flags & 0x4000 ? 1 : 0; }
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184 void unbuffered(int i)
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185 { if (i) _flags |= 2 ; else _flags &= ~2 ; }
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186 void linebuffered(int i)
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187 { if (i) _flags |= 0x4000 ; else _flags &= ~0x4000 ; }
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188 int allocate() {
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189 if (base() || unbuffered()) return 0;
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190 else return doallocate(); }
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191 virtual int sync();
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192 virtual int pbackfail(int c);
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193 virtual int ungetfail();
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194 virtual streambuf* setbuf(char* p, int len);
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195 int in_avail() { return _egptr - _gptr; }
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196 int out_waiting() { return _pptr - _pbase; }
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197 virtual int sputn(const char* s, int n);
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198 virtual int sgetn(char* s, int n);
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199 long sgetline(char* buf, int n, char delim, int putback_delim);
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200 int sbumpc() {
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201 if (_gptr >= _egptr && underflow() == (-1) ) return (-1) ;
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202 else return *(unsigned char*)_gptr++; }
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203 int sgetc() {
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204 if (_gptr >= _egptr && underflow() == (-1) ) return (-1) ;
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205 else return *(unsigned char*)_gptr; }
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206 int snextc() {
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207 if (++_gptr >= _egptr && underflow() == (-1) ) return (-1) ;
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208 else return *(unsigned char*)_gptr; }
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209 int sputc(int c) {
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210 if (_pptr >= _epptr) return overflow(c);
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211 return *_pptr++ = c, (unsigned char)c; }
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212 int vscan(char const *fmt0, char* ap);
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213 int vform(char const *fmt0, char* ap);
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214
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215
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216
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217
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218
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219
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220 };
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221
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222 struct __file_fields {
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223 char _fake;
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224 char _shortbuf[1];
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225 short _fileno;
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226 int _blksize;
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227 char* _save_gptr;
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228 char* _save_egptr;
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229 long _offset;
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230 };
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231
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232 class filebuf : public streambuf {
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233 struct __file_fields _fb;
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234 void init();
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235 public:
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236 filebuf();
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237 filebuf(int fd);
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238 filebuf(int fd, char* p, int len);
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239 ~filebuf();
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240 filebuf* attach(int fd);
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241 filebuf* open(const char *filename, const char *mode);
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242 filebuf* open(const char *filename, int mode, int prot = 0664);
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243 virtual int underflow();
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244 virtual int overflow(int c = (-1) );
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245 int is_open() { return _fb._fileno >= 0; }
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246 int fd() { return is_open() ? _fb._fileno : (-1) ; }
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247 filebuf* close();
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248 virtual int doallocate();
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249 virtual streampos seekoff(streamoff, _seek_dir, int mode=ios::in|ios::out);
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250 int sputn(const char* s, int n);
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251 int sgetn(char* s, int n);
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252 virtual int sync();
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253 protected:
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254 virtual int pbackfail(int c);
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255 int is_reading() { return eback() != egptr(); }
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256 char* cur_ptr() { return is_reading() ? gptr() : pptr(); }
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257
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258 char* file_ptr() { return _fb._save_gptr ? _fb._save_egptr : egptr(); }
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259 int do_flush();
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260
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261 virtual int sys_read(char* buf, int size);
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262 virtual long sys_seek(long , _seek_dir);
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263 virtual long sys_write(const void*, long);
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264 virtual int sys_stat(void*);
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265 virtual int sys_close();
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266 };
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267
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268
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269 inline int ios::readable() { return rdbuf()->_flags & 4 ; }
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270 inline int ios::writable() { return rdbuf()->_flags & 8 ; }
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271 inline int ios::is_open() {return rdbuf()->_flags & 4 +8 ;}
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272
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273
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274
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275
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276 //# 25 "/usr/latest/lib/g++-include/iostream.h" 2 3
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277
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278
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279 class istream; class ostream;
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280 typedef istream& (*__imanip)(istream&);
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281 typedef ostream& (*__omanip)(ostream&);
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282
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283 extern istream& ws(istream& ins);
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284 extern ostream& flush(ostream& outs);
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285 extern ostream& endl(ostream& outs);
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286 extern ostream& ends(ostream& outs);
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287
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288 class ostream : public ios
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289 {
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290 void do_osfx();
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291 public:
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292 ostream();
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293 ostream(streambuf* sb, ostream* tied=__null );
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294 ~ostream();
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295
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296 int opfx() { if (!good()) return 0; if (_tie) _tie->flush(); return 1; }
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297 void osfx() { if (flags() & (ios::unitbuf|ios::stdio))
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298 do_osfx(); }
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299 streambuf* ostreambuf() const { return _strbuf; }
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300 ostream& flush();
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301 ostream& put(char c);
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302 ostream& write(const char *s, int n);
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303 ostream& write(const unsigned char *s, int n) { return write((char*)s, n);}
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304 ostream& write(const void *s, int n) { return write((char*)s, n);}
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305 ostream& seekp(streampos);
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306 ostream& seekp(streamoff, _seek_dir);
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307 streampos tellp();
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308 ostream& form(const char *format ...);
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309 ostream& vform(const char *format, char* args);
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310 };
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311
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312 extern ostream& operator<<(ostream&, char c);
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313 inline ostream& operator<<(ostream& os, unsigned char c)
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314 { return os << (char)c; }
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315
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316 extern ostream& operator<<(ostream&, const char *s);
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317 inline ostream& operator<<(ostream& os, const unsigned char *s)
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318 { return os << (const char*)s; }
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319
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320
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321 extern ostream& operator<<(ostream&, void *p);
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322 extern ostream& operator<<(ostream&, int n);
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323 extern ostream& operator<<(ostream&, long n);
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324 extern ostream& operator<<(ostream&, unsigned int n);
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325 extern ostream& operator<<(ostream&, unsigned long n);
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326 inline ostream& operator<<(ostream& os, short n) {return os << (int)n;}
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327 inline ostream& operator<<(ostream& os, unsigned short n)
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328 {return os << (unsigned int)n;}
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329 extern ostream& operator<<(ostream&, float n);
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330 extern ostream& operator<<(ostream&, double n);
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331 inline ostream& operator<<(ostream& os, __omanip func) { return (*func)(os); }
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332 extern ostream& operator<<(ostream&, streambuf*);
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333
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334 class istream : public ios
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335 {
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336 int _gcount;
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337 public:
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338 istream();
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339 istream(streambuf* sb, ostream*tied=__null );
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340 ~istream();
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341 streambuf* istreambuf() const { return _strbuf; }
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342 istream& get(char& c);
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343 istream& get(unsigned char& c);
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344 istream& read(char *ptr, int n);
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345 istream& read(unsigned char *ptr, int n) { return read((char*)ptr, n); }
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346 istream& read(void *ptr, int n) { return read((char*)ptr, n); }
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347
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348 istream& getline(char* ptr, int len, char delim = '\n');
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349 istream& get(char* ptr, int len, char delim = '\n');
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350 istream& gets(char **s, char delim = '\n');
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351 int ipfx(int need) {
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352 if (!good()) { set(ios::failbit); return 0; }
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353 if (_tie && (need == 0 || rdbuf()->in_avail() < need)) _tie->flush();
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354 if (!need && (flags() & ios::skipws) && !ws(*this)) return 0;
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355 return 1;
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356 }
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357 int ipfx0() {
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358 if (!good()) { set(ios::failbit); return 0; }
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359 if (_tie) _tie->flush();
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360 if ((flags() & ios::skipws) && !ws(*this)) return 0;
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361 return 1;
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362 }
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363 int ipfx1() {
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364 if (!good()) { set(ios::failbit); return 0; }
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365 if (_tie && rdbuf()->in_avail() == 0) _tie->flush();
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366 return 1;
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367 }
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368 int get() { if (!ipfx1()) return (-1) ;
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369 int ch = _strbuf->sbumpc();
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370 if (ch == (-1) ) set(ios::eofbit);
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371 return ch; }
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372 int peek() { if (!ipfx1()) return (-1) ;
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373 int ch = _strbuf->sgetc();
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374 if (ch == (-1) ) set(ios::eofbit);
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375 return ch; }
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376 int gcount() { return _gcount; }
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377 istream& ignore(int n=1, int delim = (-1) );
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378 istream& seekg(streampos);
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379 istream& seekg(streamoff, _seek_dir);
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380 streampos tellg();
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381 istream& putback(char ch) {
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382 if (good() && _strbuf->sputbackc(ch) == (-1) ) clear(ios::badbit);
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383 return *this;}
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384 istream& unget() {
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385 if (good() && _strbuf->sungetc() == (-1) ) clear(ios::badbit);
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386 return *this;}
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387
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388 istream& unget(char ch) { return putback(ch); }
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389 int skip(int i);
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390
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391 };
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392
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393 extern istream& operator>>(istream&, char*);
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394 inline istream& operator>>(istream& is, unsigned char* p)
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395 { return is >> (char*)p; }
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396
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397 extern istream& operator>>(istream&, char& c);
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398 extern istream& operator>>(istream&, unsigned char& c);
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399
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400 extern istream& operator>>(istream&, int&);
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401 extern istream& operator>>(istream&, long&);
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402 extern istream& operator>>(istream&, short&);
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403 extern istream& operator>>(istream&, unsigned int&);
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404 extern istream& operator>>(istream&, unsigned long&);
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405 extern istream& operator>>(istream&, unsigned short&);
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406 extern istream& operator>>(istream&, float&);
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407 extern istream& operator>>(istream&, double&);
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408 inline istream& operator>>(istream& is, __imanip func) { return (*func)(is); }
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409
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410 inline ostream& ostream::put(char c) { _strbuf->sputc(c); return *this; }
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411
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412 class iostream : public ios {
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413 int _gcount;
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414 public:
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415 iostream();
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416 iostream(streambuf* sb, ostream*tied=__null );
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417 operator istream&() { return *(istream*)this; }
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418 operator ostream&() { return *(ostream*)this; }
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419 ~iostream();
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420
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421 istream& get(char& c) { return ((istream*)this)->get(c); }
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422 istream& get(unsigned char& c) { return ((istream*)this)->get(c); }
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423 istream& read(char *ptr, int n) { return ((istream*)this)->read(ptr, n); }
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424 istream& read(unsigned char *ptr, int n)
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425 { return ((istream*)this)->read((char*)ptr, n); }
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426 istream& read(void *ptr, int n)
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427 { return ((istream*)this)->read((char*)ptr, n); }
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428 istream& getline(char* ptr, int len, char delim = '\n')
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429 { return ((istream*)this)->getline(ptr, len, delim); }
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430 istream& get(char* ptr, int len, char delim = '\n')
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431 { return ((istream*)this)->get(ptr, len, delim); }
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432 istream& gets(char **s, char delim = '\n')
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433 { return ((istream*)this)->gets(s, delim); }
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434 istream& ignore(int n=1, int delim = (-1) )
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435 { return ((istream*)this)->ignore(n, delim); }
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436 int ipfx(int need) { return ((istream*)this)->ipfx(need); }
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437 int ipfx0() { return ((istream*)this)->ipfx0(); }
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438 int ipfx1() { return ((istream*)this)->ipfx1(); }
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439 int get() { return _strbuf->sbumpc(); }
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440 int peek() { return ipfx1() ? _strbuf->sgetc() : (-1) ; }
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441 int gcount() { return _gcount; }
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442 istream& putback(char ch) { return ((istream*)this)->putback(ch); }
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443 istream& unget() { return ((istream*)this)->unget(); }
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444 istream& seekg(streampos pos) { return ((istream*)this)->seekg(pos); }
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445 istream& seekg(streamoff off, _seek_dir dir)
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446 { return ((istream*)this)->seekg(off, dir); }
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447 streampos tellg() { return ((istream*)this)->tellg(); }
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448
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449 istream& unget(char ch) { return putback(ch); }
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450
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451
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452
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453 int opfx() { return ((ostream*)this)->opfx(); }
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454 void osfx() { ((ostream*)this)->osfx(); }
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455 ostream& flush() { return ((ostream*)this)->flush(); }
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456 ostream& put(char c) { return ((ostream*)this)->put(c); }
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457 ostream& write(const char *s, int n)
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458 { return ((ostream*)this)->write(s, n); }
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459 ostream& write(const unsigned char *s, int n)
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460 { return ((ostream*)this)->write((char*)s, n); }
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461 ostream& write(const void *s, int n)
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462 { return ((ostream*)this)->write((char*)s, n); }
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463 ostream& form(const char *format ...);
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464 ostream& vform(const char *format, char* args)
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465 { return ((ostream*)this)->vform(format, args); }
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466 ostream& seekp(streampos pos) { return ((ostream*)this)->seekp(pos); }
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467 ostream& seekp(streamoff off, _seek_dir dir)
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468 { return ((ostream*)this)->seekp(off, dir); }
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469 streampos tellp() { return ((ostream*)this)->tellp(); }
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470 };
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471
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472 extern istream cin;
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473 extern ostream cout, cerr, clog;
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474
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475 struct Iostream_init { } ;
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476
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477 inline ios& dec(ios& i)
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478 { i.setf(ios::dec, ios::dec|ios::hex|ios::oct); return i; }
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479 inline ios& hex(ios& i)
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480 { i.setf(ios::hex, ios::dec|ios::hex|ios::oct); return i; }
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481 inline ios& oct(ios& i)
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482 { i.setf(ios::oct, ios::dec|ios::hex|ios::oct); return i; }
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483
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484
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485 //# 7 "/usr/latest/lib/g++-include/stream.h" 2 3
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486
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487
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488 extern char* form(const char*, ...);
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489
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490 extern char* dec(long, int=0);
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491 extern char* dec(int, int=0);
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492 extern char* dec(unsigned long, int=0);
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493 extern char* dec(unsigned int, int=0);
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494
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495 extern char* hex(long, int=0);
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496 extern char* hex(int, int=0);
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497 extern char* hex(unsigned long, int=0);
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498 extern char* hex(unsigned int, int=0);
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499
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500 extern char* oct(long, int=0);
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|
501 extern char* oct(int, int=0);
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502 extern char* oct(unsigned long, int=0);
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503 extern char* oct(unsigned int, int=0);
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504
|
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505 inline istream& WS(istream& str) { return ws(str); }
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506
|
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507
|
|
508 //# 9 "test.C" 2
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|
509
|
|
510
|
|
511 class Y {
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|
512 public:
|
|
513 Y() {}
|
|
514 virtual const char *stringify() = 0;
|
131
|
515 virtual char *stringify2() const = 0; // { dg-message "overridden" }
|
111
|
516 };
|
|
517
|
|
518 class X: public Y { // { dg-message "defined here" }
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|
519 public:
|
|
520 X(): Y() {}
|
|
521 const char *stringify(); // { dg-message "candidate" }
|
|
522 const char *stringify2() const; // { dg-message "candidate" }
|
|
523 // { dg-error "conflicting return type" "" { target *-*-* } .-1 }
|
|
524 };
|
|
525
|
|
526 char *
|
|
527 X::stringify() const // { dg-error "no declaration matches" }
|
|
528 {
|
|
529 return "stringify";
|
|
530 }
|
|
531
|
|
532 const char *
|
|
533 X::stringify2() // { dg-error "no declaration matches" }
|
|
534 {
|
|
535 return "stringify2";
|
|
536 }
|
|
537
|
131
|
538 int
|
111
|
539 main()
|
|
540 {
|
|
541 X x;
|
|
542 Y& y = x;
|
|
543
|
|
544 cout << "x\n";
|
|
545 cout << x.stringify() << '\n';
|
|
546 cout << x.stringify2() << '\n';
|
|
547
|
|
548 cout << "y\n";
|
|
549 cout << y.stringify() << '\n';
|
|
550 cout << y.stringify2() << '\n';
|
131
|
551
|
|
552 return 0;
|
111
|
553 }
|