IOSTREAM头文件

IOSTREAM头文件 /*** *iostream.h - definitions/declarations for iostream classes * * Copyright (c) 1990-1997, Microsoft Corporation. All rights reserved. * *Purpose: * This file defines the classes, values, macros, and functions * used by the iostream classes. * [AT&T C++] * * [Public] * ****/ #if _MSC_VER > 1000 #pragma once #endif #ifdef __cplusplus #ifndef _INC_IOSTREAM #define _INC_IOSTREAM #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 #endif // _MSC_VER /* Define _CRTIMP */ #ifndef _CRTIMP #ifdef _DLL #define _CRTIMP __declspec(dllimport) #else /* ndef _DLL */ #define _CRTIMP #endif /* _DLL */ #endif /* _CRTIMP */ typedef long streamoff, streampos; #include // Define ios. #include // Define streambuf. #include // Define istream. #include // Define ostream. #ifdef _MSC_VER // C4514: "unreferenced inline function has been removed" #pragma warning(disable:4514) // disable C4514 warning // #pragma warning(default:4514) // use this to reenable, if desired #endif // _MSC_VER class _CRTIMP iostream : public istream, public ostream { public: iostream(streambuf*); virtual ~iostream(); protected: iostream(); iostream(const iostream&); inline iostream& operator=(streambuf*); inline iostream& operator=(iostream&); private: iostream(ios&); iostream(istream&); iostream(ostream&); }; inline iostream& iostream::operator=(streambuf* _sb) { istream::operator=(_sb); ostream::operator=(_sb); return *this; } inline iostream& iostream::operator=(iostream& _strm) { return operator=(_strm.rdbuf()); } class _CRTIMP Iostream_init { public: Iostream_init(); Iostream_init(ios &, int =0); // treat as private ~Iostream_init(); }; // used internally // static Iostream_init __iostreaminit; // initializes cin/cout/cerr/clog #ifdef _MSC_VER // Restore previous packing #pragma pack(pop) #endif // _MSC_VER #endif // _INC_IOSTREAM #endif /* __cplusplus */