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

95 lines
1.9 KiB
C++

/***
*stdiostr.h - definitions/declarations for stdiobuf, stdiostream
*
* Copyright (c) 1991-2000, Microsoft Corporation. All rights reserved.
*
*Purpose:
* This file defines the classes, values, macros, and functions
* used by the stdiostream and stdiobuf classes.
* [AT&T C++]
*
* [Public]
*
****/
#if _MSC_VER > 1000
#pragma once
#endif
#ifdef __cplusplus
#ifndef _INC_STDIOSTREAM
#define _INC_STDIOSTREAM
#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)
#include <useoldio.h>
#endif // _MSC_VER
/* Define _CRTIMP */
#ifndef _CRTIMP
/* current definition */
#ifdef _DLL
#define _CRTIMP __declspec(dllimport)
#else /* ndef _DLL */
#define _CRTIMP
#endif /* _DLL */
#endif /* _CRTIMP */
#include <iostream.h>
#include <stdio.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 stdiobuf : public streambuf {
public:
stdiobuf(FILE* f);
FILE * stdiofile() { return _str; }
virtual int pbackfail(int c);
virtual int overflow(int c = EOF);
virtual int underflow();
virtual streampos seekoff( streamoff, ios::seek_dir, int =ios::in|ios::out);
virtual int sync();
~stdiobuf();
int setrwbuf(int _rsize, int _wsize);
// protected:
// virtual int doallocate();
private:
FILE * _str;
};
// obsolescent
class _CRTIMP stdiostream : public iostream { // note: spec.'d as : public IOS...
public:
stdiostream(FILE *);
~stdiostream();
stdiobuf* rdbuf() const { return (stdiobuf*) ostream::rdbuf(); }
private:
};
#ifdef _MSC_VER
// Restore default packing
#pragma pack(pop)
#endif // _MSC_VER
#endif // _INC_STDIOSTREAM
#endif /* __cplusplus */