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#ifndef __SGI_STL_STRSTREAM
00049
#define __SGI_STL_STRSTREAM
00050
00051
#include "backward_warning.h"
00052
#include <iosfwd>
00053
#include <ios>
00054
#include <istream>
00055
#include <ostream>
00056
#include <string>
00057
00058
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 #endif