new.h

C标准库源代码

/***
*new.h - declarations and definitions for C++ memory allocation functions
*
*       Copyright (c) 1990-1997, Microsoft Corporation. All rights reserved.
*
*Purpose:
*       Contains the declarations for C++ memory allocation functions.
*
*       [Public]
*
****/

#if _MSC_VER > 1000
#pragma once
#endif  /* _MSC_VER > 1000 */

#ifndef _INC_NEW
#define _INC_NEW

#ifdef __cplusplus

#ifndef _MSC_EXTENSIONS
#include <new>
#endif  /* _MSC_EXTENSIONS */

#if !defined (_WIN32) && !defined (_MAC)
#error ERROR: Only Mac or Win32 targets supported!
#endif  /* !defined (_WIN32) && !defined (_MAC) */

#ifndef _CRTBLD
/* This version of the header files is NOT for user programs.
 * It is intended for use when building the C runtimes ONLY.
 * The version intended for public use will not have this message.
 */
#error ERROR: Use of C runtime library internal header file.
#endif  /* _CRTBLD */

#ifndef _INTERNAL_IFSTRIP_
#include <cruntime.h>
#endif  /* _INTERNAL_IFSTRIP_ */


/* Define _CRTIMP */

#ifndef _CRTIMP
#ifdef CRTDLL
#define _CRTIMP __declspec(dllexport)
#else  /* CRTDLL */
#ifdef _DLL
#define _CRTIMP __declspec(dllimport)
#else  /* _DLL */
#define _CRTIMP
#endif  /* _DLL */
#endif  /* CRTDLL */
#endif  /* _CRTIMP */


/* Define __cdecl for non-Microsoft compilers */

#if (!defined (_MSC_VER) && !defined (__cdecl))
#define __cdecl
#endif  /* (!defined (_MSC_VER) && !defined (__cdecl)) */

/* Define _CRTAPI1 (for compatibility with the NT SDK) */

#ifndef _CRTAPI1
#if _MSC_VER >= 800 && _M_IX86 >= 300
#define _CRTAPI1 __cdecl
#else  /* _MSC_VER >= 800 && _M_IX86 >= 300 */
#define _CRTAPI1
#endif  /* _MSC_VER >= 800 && _M_IX86 >= 300 */
#endif  /* _CRTAPI1 */


/* types and structures */

#ifndef _SIZE_T_DEFINED
typedef unsigned int size_t;
#define _SIZE_T_DEFINED
#endif  /* _SIZE_T_DEFINED */

#ifdef _MSC_EXTENSIONS
typedef void (__cdecl * new_handler) ();
_CRTIMP new_handler __cdecl set_new_handler(new_handler);
#endif  /* _MSC_EXTENSIONS */

#ifndef __PLACEMENT_NEW_INLINE
#define __PLACEMENT_NEW_INLINE
inline void *__cdecl operator new(size_t, void *_P)
        {return (_P); }
#if _MSC_VER >= 1200
inline void __cdecl operator delete(void *, void *)
        {return; }
#endif  /* _MSC_VER >= 1200 */
#endif  /* __PLACEMENT_NEW_INLINE */


/*
 * new mode flag -- when set, makes malloc() behave like new()
 */

_CRTIMP int __cdecl _query_new_mode( void );
_CRTIMP int __cdecl _set_new_mode( int );

#ifndef _PNH_DEFINED
typedef int (__cdecl * _PNH)( size_t );
#define _PNH_DEFINED
#endif  /* _PNH_DEFINED */

_CRTIMP _PNH __cdecl _query_new_handler( void );
_CRTIMP _PNH __cdecl _set_new_handler( _PNH );

/*
 * Microsoft extension:
 *
 * _NO_ANSI_NEW_HANDLER de-activates the ANSI new_handler. Use this special value
 * to support old style (_set_new_handler) behavior.
 */

#ifndef _NO_ANSI_NH_DEFINED
#define _NO_ANSI_NEW_HANDLER  ((new_handler)-1)
#define _NO_ANSI_NH_DEFINED
#endif  /* _NO_ANSI_NH_DEFINED */

#endif  /* __cplusplus */

#endif  /* _INC_NEW */