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00048 #ifndef _GLIBCXX_STRSTREAM
00049 #define _GLIBCXX_STRSTREAM
00050
00051 #include "backward_warning.h"
00052 #include <iosfwd>
00053 #include <ios>
00054 #include <istream>
00055 #include <ostream>
00056 #include <string>
00057
00058 _GLIBCXX_BEGIN_NAMESPACE(std)
00059
00060
00061
00062 class strstreambuf : public basic_streambuf<char, char_traits<char> >
00063 {
00064 public:
00065
00066 typedef char_traits<char> _Traits;
00067 typedef basic_streambuf<char, _Traits> _Base;
00068
00069 public:
00070
00071 explicit strstreambuf(streamsize __initial_capacity = 0);
00072 strstreambuf(void* (*__alloc)(size_t), void (*__free)(void*));
00073
00074 strstreambuf(char* __get, streamsize __n, char* __put = 0);
00075 strstreambuf(signed char* __get, streamsize __n, signed char* __put = 0);
00076 strstreambuf(unsigned char* __get, streamsize __n, unsigned char* __put=0);
00077
00078 strstreambuf(const char* __get, streamsize __n);
00079 strstreambuf(const signed char* __get, streamsize __n);
00080 strstreambuf(const unsigned char* __get, streamsize __n);
00081
00082 virtual ~strstreambuf();
00083
00084 public:
00085 void freeze(bool = true);
00086 char* str();
00087 int pcount() const;
00088
00089 protected:
00090 virtual int_type overflow(int_type __c = _Traits::eof());
00091 virtual int_type pbackfail(int_type __c = _Traits::eof());
00092 virtual int_type underflow();
00093 virtual _Base* setbuf(char* __buf, streamsize __n);
00094 virtual pos_type seekoff(off_type __off, ios_base::seekdir __dir,
00095 ios_base::openmode __mode
00096 = ios_base::in | ios_base::out);
00097 virtual pos_type seekpos(pos_type __pos, ios_base::openmode __mode
00098 = ios_base::in | ios_base::out);
00099
00100 private:
00101 strstreambuf&
00102 operator=(const strstreambuf&);
00103
00104 strstreambuf(const strstreambuf&);
00105
00106
00107 char* _M_alloc(size_t);
00108 void _M_free(char*);
00109
00110
00111 void _M_setup(char* __get, char* __put, streamsize __n);
00112
00113 private:
00114
00115 void* (*_M_alloc_fun)(size_t);
00116 void (*_M_free_fun)(void*);
00117
00118 bool _M_dynamic : 1;
00119 bool _M_frozen : 1;
00120 bool _M_constant : 1;
00121 };
00122
00123
00124 class istrstream : public basic_istream<char>
00125 {
00126 public:
00127 explicit istrstream(char*);
00128 explicit istrstream(const char*);
00129 istrstream(char* , streamsize);
00130 istrstream(const char*, streamsize);
00131 virtual ~istrstream();
00132
00133 strstreambuf* rdbuf() const;
00134 char* str();
00135
00136 private:
00137 strstreambuf _M_buf;
00138 };
00139
00140
00141 class ostrstream : public basic_ostream<char>
00142 {
00143 public:
00144 ostrstream();
00145 ostrstream(char*, int, ios_base::openmode = ios_base::out);
00146 virtual ~ostrstream();
00147
00148 strstreambuf* rdbuf() const;
00149 void freeze(bool = true);
00150 char* str();
00151 int pcount() const;
00152
00153 private:
00154 strstreambuf _M_buf;
00155 };
00156
00157
00158 class strstream : public basic_iostream<char>
00159 {
00160 public:
00161 typedef char char_type;
00162 typedef char_traits<char>::int_type int_type;
00163 typedef char_traits<char>::pos_type pos_type;
00164 typedef char_traits<char>::off_type off_type;
00165
00166 strstream();
00167 strstream(char*, int, ios_base::openmode = ios_base::in | ios_base::out);
00168 virtual ~strstream();
00169
00170 strstreambuf* rdbuf() const;
00171 void freeze(bool = true);
00172 int pcount() const;
00173 char* str();
00174
00175 private:
00176 strstreambuf _M_buf;
00177 };
00178
00179 _GLIBCXX_END_NAMESPACE
00180
00181 #endif