new_mode.cpp

来自「C语言库函数的原型,有用的拿去」· C++ 代码 · 共 38 行

/***
*newmode.cxx - defines C++ setHandler mode
*
*       Copyright (c) Microsoft Corporation. All rights reserved.
*
*Purpose:
*       Defines routines to set and to query the C++ new handler mode.
*
*       The new handler mode flag determines whether malloc() failures will
*       call the new() failure handler, or whether malloc will return NULL.
*
*******************************************************************************/

#include <cruntime.h>
#include <new.h>
#include <internal.h>

int __cdecl _set_new_mode( int nhm )
{
    int nhmOld;

    /* validation section */
    _VALIDATE_RETURN(nhm == 0 || nhm == 1, EINVAL, -1);

    /*
     * Set the new mode and return the old
     */
    nhmOld = _newmode;
    _newmode = nhm;

    return nhmOld;
}

int __cdecl _query_new_mode ( void )
{
    return _newmode;
}