windows-nt/Source/XPSP1/NT/public/sdk/inc/crt/strstrea.h
2020-09-26 16:20:57 +08:00

126 lines
3.1 KiB
C++

/***
*strstrea.h - definitions/declarations for strstreambuf, strstream
*
* Copyright (c) 1991-2000, Microsoft Corporation. All rights reserved.
*
*Purpose:
* This file defines the classes, values, macros, and functions
* used by the strstream and strstreambuf classes.
* [AT&T C++]
*
* [Public]
*
****/
#if _MSC_VER > 1000
#pragma once
#endif
#ifdef __cplusplus
#ifndef _INC_STRSTREAM
#define _INC_STRSTREAM
#if !defined(_WIN32)
#error ERROR: Only Win32 target supported!
#endif
#ifdef _MSC_VER
// Currently, all MS C compilers for Win32 platforms default to 8 byte
// alignment.
#pragma pack(push,8)
#endif // _MSC_VER
/* Define _CRTIMP */
#ifndef _CRTIMP
#ifdef _DLL
#define _CRTIMP __declspec(dllimport)
#else /* ndef _DLL */
#define _CRTIMP
#endif /* _DLL */
#endif /* _CRTIMP */
#include <useoldio.h>
#include <iostream.h>
#ifdef _MSC_VER
#pragma warning(disable:4514) // disable unwanted /W4 warning
// #pragma warning(default:4514) // use this to reenable, if necessary
#endif // _MSC_VER
class _CRTIMP strstreambuf : public streambuf {
public:
strstreambuf();
strstreambuf(int);
strstreambuf(char *, int, char * = 0);
strstreambuf(unsigned char *, int, unsigned char * = 0);
strstreambuf(signed char *, int, signed char * = 0);
strstreambuf(void * (*a)(long), void (*f) (void *));
~strstreambuf();
void freeze(int =1);
char * str();
virtual int overflow(int);
virtual int underflow();
virtual streambuf* setbuf(char *, int);
virtual streampos seekoff(streamoff, ios::seek_dir, int);
virtual int sync(); // not in spec.
protected:
virtual int doallocate();
private:
int x_dynamic;
int x_bufmin;
int _fAlloc;
int x_static;
void * (* x_alloc)(long);
void (* x_free)(void *);
};
class _CRTIMP istrstream : public istream {
public:
istrstream(char *);
istrstream(char *, int);
~istrstream();
inline strstreambuf* rdbuf() const { return (strstreambuf*) ios::rdbuf(); }
inline char * str() { return rdbuf()->str(); }
};
class _CRTIMP ostrstream : public ostream {
public:
ostrstream();
ostrstream(char *, int, int = ios::out);
~ostrstream();
inline int pcount() const { return rdbuf()->out_waiting(); }
inline strstreambuf* rdbuf() const { return (strstreambuf*) ios::rdbuf(); }
inline char * str() { return rdbuf()->str(); }
};
class _CRTIMP strstream : public iostream { // strstreambase ???
public:
strstream();
strstream(char *, int, int);
~strstream();
inline int pcount() const { return rdbuf()->out_waiting(); } // not in spec.
inline strstreambuf* rdbuf() const { return (strstreambuf*) ostream::rdbuf(); }
inline char * str() { return rdbuf()->str(); }
};
#ifdef _MSC_VER
// Restore previous packing
#pragma pack(pop)
#endif // _MSC_VER
#endif // _INC_STRSTREAM
#endif /* __cplusplus */