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1234567891011121314151617181920212223242526272829303132//// new_mode.cpp//// Copyright (c) Microsoft Corporation. All rights reserved.//// Definition of _set_new_mode and _query_new_mode, which provide access to the// _newmode global flag.//#include <corecrt_internal.h>#include <new.h>
static __crt_state_management::dual_state_global<long> __acrt_global_new_mode;
// Sets the _newmode flag to the new value 'mode' and return the old mode.extern "C" int __cdecl _set_new_mode(int const mode){ // The only valid values of _newmode are 0 and 1: _VALIDATE_RETURN(mode == 0 || mode == 1, EINVAL, -1);
return static_cast<int>(_InterlockedExchange(&__acrt_global_new_mode.value(), mode));}
// Gets the current value of the _newmode flag.extern "C" int __cdecl _query_new_mode(){ return static_cast<int>(__crt_interlocked_read(&__acrt_global_new_mode.value()));}