annotate zlib/contrib/iostream/zfstream.h @ 144:8f4e72ab4e11

fix segmentation fault caused by nothing next cur_op to end
author Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
date Sun, 23 Dec 2018 21:23:56 +0900
parents ae3a4bfb450b
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
51
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1
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2 #ifndef zfstream_h
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3 #define zfstream_h
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4
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5 #include <fstream.h>
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6 #include "zlib.h"
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7
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8 class gzfilebuf : public streambuf {
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9
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10 public:
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11
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12 gzfilebuf( );
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13 virtual ~gzfilebuf();
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14
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15 gzfilebuf *open( const char *name, int io_mode );
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16 gzfilebuf *attach( int file_descriptor, int io_mode );
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17 gzfilebuf *close();
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18
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19 int setcompressionlevel( int comp_level );
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20 int setcompressionstrategy( int comp_strategy );
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21
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22 inline int is_open() const { return (file !=NULL); }
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23
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24 virtual streampos seekoff( streamoff, ios::seek_dir, int );
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25
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26 virtual int sync();
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27
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28 protected:
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29
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30 virtual int underflow();
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31 virtual int overflow( int = EOF );
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32
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33 private:
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34
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35 gzFile file;
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36 short mode;
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37 short own_file_descriptor;
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38
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39 int flushbuf();
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40 int fillbuf();
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41
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42 };
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43
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44 class gzfilestream_common : virtual public ios {
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45
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46 friend class gzifstream;
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47 friend class gzofstream;
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48 friend gzofstream &setcompressionlevel( gzofstream &, int );
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49 friend gzofstream &setcompressionstrategy( gzofstream &, int );
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51 public:
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52 virtual ~gzfilestream_common();
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53
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54 void attach( int fd, int io_mode );
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55 void open( const char *name, int io_mode );
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56 void close();
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57
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58 protected:
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59 gzfilestream_common();
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60
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61 private:
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62 gzfilebuf *rdbuf();
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63
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64 gzfilebuf buffer;
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65
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66 };
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67
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68 class gzifstream : public gzfilestream_common, public istream {
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69
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70 public:
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71
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72 gzifstream();
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73 gzifstream( const char *name, int io_mode = ios::in );
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74 gzifstream( int fd, int io_mode = ios::in );
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75
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76 virtual ~gzifstream();
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77
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78 };
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79
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80 class gzofstream : public gzfilestream_common, public ostream {
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81
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82 public:
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83
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84 gzofstream();
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85 gzofstream( const char *name, int io_mode = ios::out );
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86 gzofstream( int fd, int io_mode = ios::out );
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87
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88 virtual ~gzofstream();
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89
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90 };
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91
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92 template<class T> class gzomanip {
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93 friend gzofstream &operator<<(gzofstream &, const gzomanip<T> &);
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94 public:
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95 gzomanip(gzofstream &(*f)(gzofstream &, T), T v) : func(f), val(v) { }
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96 private:
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97 gzofstream &(*func)(gzofstream &, T);
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98 T val;
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99 };
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100
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101 template<class T> gzofstream &operator<<(gzofstream &s, const gzomanip<T> &m)
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102 {
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103 return (*m.func)(s, m.val);
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104 }
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105
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106 inline gzofstream &setcompressionlevel( gzofstream &s, int l )
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107 {
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108 (s.rdbuf())->setcompressionlevel(l);
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109 return s;
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110 }
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111
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112 inline gzofstream &setcompressionstrategy( gzofstream &s, int l )
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113 {
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114 (s.rdbuf())->setcompressionstrategy(l);
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115 return s;
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116 }
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117
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118 inline gzomanip<int> setcompressionlevel(int l)
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119 {
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120 return gzomanip<int>(&setcompressionlevel,l);
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121 }
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122
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123 inline gzomanip<int> setcompressionstrategy(int l)
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124 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
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125 return gzomanip<int>(&setcompressionstrategy,l);
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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126 }
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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127
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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128 #endif