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00043 #ifndef _GLIBCXX_STRSTREAM
00044 #define _GLIBCXX_STRSTREAM
00045
00046 #include "backward_warning.h"
00047 #include <iosfwd>
00048 #include <ios>
00049 #include <istream>
00050 #include <ostream>
00051 #include <string>
00052
00053 _GLIBCXX_BEGIN_NAMESPACE(std)
00054
00055
00056
00057 class strstreambuf : public basic_streambuf<char, char_traits<char> >
00058 {
00059 public:
00060
00061 typedef char_traits<char> _Traits;
00062 typedef basic_streambuf<char, _Traits> _Base;
00063
00064 public:
00065
00066 explicit strstreambuf(streamsize __initial_capacity = 0);
00067 strstreambuf(void* (*__alloc)(size_t), void (*__free)(void*));
00068
00069 strstreambuf(char* __get, streamsize __n, char* __put = 0);
00070 strstreambuf(signed char* __get, streamsize __n, signed char* __put = 0);
00071 strstreambuf(unsigned char* __get, streamsize __n, unsigned char* __put=0);
00072
00073 strstreambuf(const char* __get, streamsize __n);
00074 strstreambuf(const signed char* __get, streamsize __n);
00075 strstreambuf(const unsigned char* __get, streamsize __n);
00076
00077 virtual ~strstreambuf();
00078
00079 public:
00080 void freeze(bool = true);
00081 char* str();
00082 int pcount() const;
00083
00084 protected:
00085 virtual int_type overflow(int_type __c = _Traits::eof());
00086 virtual int_type pbackfail(int_type __c = _Traits::eof());
00087 virtual int_type underflow();
00088 virtual _Base* setbuf(char* __buf, streamsize __n);
00089 virtual pos_type seekoff(off_type __off, ios_base::seekdir __dir,
00090 ios_base::openmode __mode
00091 = ios_base::in | ios_base::out);
00092 virtual pos_type seekpos(pos_type __pos, ios_base::openmode __mode
00093 = ios_base::in | ios_base::out);
00094
00095 private:
00096 strstreambuf&
00097 operator=(const strstreambuf&);
00098
00099 strstreambuf(const strstreambuf&);
00100
00101
00102 char* _M_alloc(size_t);
00103 void _M_free(char*);
00104
00105
00106 void _M_setup(char* __get, char* __put, streamsize __n);
00107
00108 private:
00109
00110 void* (*_M_alloc_fun)(size_t);
00111 void (*_M_free_fun)(void*);
00112
00113 bool _M_dynamic : 1;
00114 bool _M_frozen : 1;
00115 bool _M_constant : 1;
00116 };
00117
00118
00119 class istrstream : public basic_istream<char>
00120 {
00121 public:
00122 explicit istrstream(char*);
00123 explicit istrstream(const char*);
00124 istrstream(char* , streamsize);
00125 istrstream(const char*, streamsize);
00126 virtual ~istrstream();
00127
00128 strstreambuf* rdbuf() const;
00129 char* str();
00130
00131 private:
00132 strstreambuf _M_buf;
00133 };
00134
00135
00136 class ostrstream : public basic_ostream<char>
00137 {
00138 public:
00139 ostrstream();
00140 ostrstream(char*, int, ios_base::openmode = ios_base::out);
00141 virtual ~ostrstream();
00142
00143 strstreambuf* rdbuf() const;
00144 void freeze(bool = true);
00145 char* str();
00146 int pcount() const;
00147
00148 private:
00149 strstreambuf _M_buf;
00150 };
00151
00152
00153 class strstream : public basic_iostream<char>
00154 {
00155 public:
00156 typedef char char_type;
00157 typedef char_traits<char>::int_type int_type;
00158 typedef char_traits<char>::pos_type pos_type;
00159 typedef char_traits<char>::off_type off_type;
00160
00161 strstream();
00162 strstream(char*, int, ios_base::openmode = ios_base::in | ios_base::out);
00163 virtual ~strstream();
00164
00165 strstreambuf* rdbuf() const;
00166 void freeze(bool = true);
00167 int pcount() const;
00168 char* str();
00169
00170 private:
00171 strstreambuf _M_buf;
00172 };
00173
00174 _GLIBCXX_END_NAMESPACE
00175
00176 #endif