C语言头文件 STDIOSTR

/*** *stdiostr.h - definitions/declarations for stdiobuf, stdiostream * * Copyright (c) 1991-1997, 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) && !defined(_MAC) #error ERROR: Only Mac or Win32 targets 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 */