128 lines
3.5 KiB
Plaintext
128 lines
3.5 KiB
Plaintext
|
// strstream standard header
|
||
|
|
#ifndef _STRSTREAM_
|
||
|
|
#define _STRSTREAM_
|
||
|
|
#include <istream>
|
||
|
|
|
||
|
|
#ifdef _MSC_VER
|
||
|
|
#pragma pack(push,8)
|
||
|
|
#endif /* _MSC_VER */
|
||
|
|
_STD_BEGIN
|
||
|
|
// CLASS strstreambuf
|
||
|
|
class strstreambuf : public streambuf {
|
||
|
|
public:
|
||
|
|
enum __Strstate {_Allocated = 1, _Constant = 2,
|
||
|
|
_Dynamic = 4, _Frozen = 8};
|
||
|
|
_BITMASK(__Strstate, _Strstate);
|
||
|
|
explicit strstreambuf(streamsize _N = 0)
|
||
|
|
{_Init(_N); }
|
||
|
|
strstreambuf(void *(__cdecl *_A)(size_t),
|
||
|
|
void (__cdecl *_F)(void *))
|
||
|
|
{_Init(), _Palloc = _A, _Pfree = _F; }
|
||
|
|
strstreambuf(char *_G, streamsize _N, char *_P = 0)
|
||
|
|
{_Init(_N, _G, _P); }
|
||
|
|
strstreambuf(unsigned char *_G, streamsize _N,
|
||
|
|
unsigned char *_P = 0)
|
||
|
|
{_Init(_N, (char *)_G, (char *)_P); }
|
||
|
|
strstreambuf(const char *_G, streamsize _N)
|
||
|
|
{_Init(_N, (char *)_G, 0, _Constant); }
|
||
|
|
strstreambuf(const unsigned char *_G, streamsize _N)
|
||
|
|
{_Init(_N, (char *)_G, 0, _Constant); }
|
||
|
|
_CRTIMP2 virtual ~strstreambuf();
|
||
|
|
_CRTIMP2 void freeze(bool = true);
|
||
|
|
char *str()
|
||
|
|
{freeze();
|
||
|
|
return (gptr()); }
|
||
|
|
streamsize pcount() const
|
||
|
|
{return (pptr() == 0 ? 0 : (streamsize) (pptr() - pbase())); }
|
||
|
|
strstreambuf(signed char *_G, streamsize _N,
|
||
|
|
signed char *_P = 0)
|
||
|
|
{_Init(_N, (char *)_G, (char *)_P); }
|
||
|
|
strstreambuf(const signed char *_G, streamsize _N)
|
||
|
|
{_Init(_N, (char *)_G, 0, _Constant); }
|
||
|
|
protected:
|
||
|
|
_CRTIMP2 virtual int overflow(int = EOF);
|
||
|
|
_CRTIMP2 virtual int pbackfail(int = EOF);
|
||
|
|
_CRTIMP2 virtual int underflow();
|
||
|
|
_CRTIMP2 virtual streampos seekoff(streamoff, ios::seekdir,
|
||
|
|
ios::openmode = ios::in | ios::out);
|
||
|
|
_CRTIMP2 virtual streampos seekpos(streampos,
|
||
|
|
ios::openmode = ios::in | ios::out);
|
||
|
|
_CRTIMP2 void _Init(int = 0, char * = 0, char * = 0,
|
||
|
|
_Strstate = (_Strstate)0);
|
||
|
|
_CRTIMP2 void _Tidy();
|
||
|
|
private:
|
||
|
|
enum {_ALSIZE = 512, _MINSIZE = 32};
|
||
|
|
char *_Pendsave, *_Seekhigh;
|
||
|
|
int _Alsize;
|
||
|
|
_Strstate _Strmode;
|
||
|
|
void *(__cdecl *_Palloc)(size_t);
|
||
|
|
void (__cdecl *_Pfree)(void *);
|
||
|
|
};
|
||
|
|
_BITMASK_OPS(strstreambuf::__Strstate)
|
||
|
|
// CLASS istrstream
|
||
|
|
class istrstream : public istream {
|
||
|
|
public:
|
||
|
|
explicit istrstream(const char *_S)
|
||
|
|
: istream(&_Sb), _Sb(_S, 0) {}
|
||
|
|
istrstream(const char *_S, streamsize _N)
|
||
|
|
: istream(&_Sb), _Sb(_S, _N) {}
|
||
|
|
explicit istrstream(char *_S)
|
||
|
|
: istream(&_Sb), _Sb((const char *)_S, 0) {}
|
||
|
|
istrstream(char *_S, int _N)
|
||
|
|
: istream(&_Sb), _Sb((const char *)_S, _N) {}
|
||
|
|
_CRTIMP2 virtual ~istrstream();
|
||
|
|
strstreambuf *rdbuf() const
|
||
|
|
{return ((strstreambuf *)&_Sb); }
|
||
|
|
char *str()
|
||
|
|
{return (_Sb.str()); }
|
||
|
|
private:
|
||
|
|
strstreambuf _Sb;
|
||
|
|
};
|
||
|
|
// CLASS ostrstream
|
||
|
|
class ostrstream : public ostream {
|
||
|
|
public:
|
||
|
|
ostrstream()
|
||
|
|
: ostream(&_Sb), _Sb() {}
|
||
|
|
_CRTIMP2 ostrstream(char *, streamsize, openmode = out);
|
||
|
|
_CRTIMP2 virtual ~ostrstream();
|
||
|
|
strstreambuf *rdbuf() const
|
||
|
|
{return ((strstreambuf *)&_Sb); }
|
||
|
|
void freeze(bool _F = true)
|
||
|
|
{_Sb.freeze(_F); }
|
||
|
|
char *str()
|
||
|
|
{return (_Sb.str()); }
|
||
|
|
streamsize pcount() const
|
||
|
|
{return (_Sb.pcount()); }
|
||
|
|
private:
|
||
|
|
strstreambuf _Sb;
|
||
|
|
};
|
||
|
|
// CLASS strstream
|
||
|
|
class strstream : public iostream {
|
||
|
|
public:
|
||
|
|
strstream()
|
||
|
|
: iostream(&_Sb), _Sb() {}
|
||
|
|
_CRTIMP2 strstream(char *, streamsize, openmode = in | out);
|
||
|
|
_CRTIMP2 virtual ~strstream();
|
||
|
|
strstreambuf *rdbuf() const
|
||
|
|
{return ((strstreambuf *)&_Sb); }
|
||
|
|
void freeze(bool _F = true)
|
||
|
|
{_Sb.freeze(_F); }
|
||
|
|
char *str()
|
||
|
|
{return (_Sb.str()); }
|
||
|
|
streamsize pcount() const
|
||
|
|
{return (_Sb.pcount()); }
|
||
|
|
private:
|
||
|
|
strstreambuf _Sb;
|
||
|
|
};
|
||
|
|
_STD_END
|
||
|
|
#ifdef _MSC_VER
|
||
|
|
#pragma pack(pop)
|
||
|
|
#endif /* _MSC_VER */
|
||
|
|
|
||
|
|
#endif /* _STRSTREAM_ */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Copyright (c) 1994 by P.J. Plauger. ALL RIGHTS RESERVED.
|
||
|
|
* Consult your license regarding permissions and restrictions.
|
||
|
|
*/
|